hybridfree/eevblog-posts huggingface dataset:
Adjustable Linear AC-DC Power Supply - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: December 30, 2019, 03:21:12 pm
content: Features:AC – DC ConversionDouble output voltages (Positive – Ground – Negative)Adjustable positive and negative railsJust a Single-Output AC transformerOutput noise (20MHz-BWL, no load): Around 1.12mVppLow noise and stable outputs (ideal to power Opamps)Output Voltage: +/-1.25V to +/-25VMaximum output current: 300mA to 500mACheap and easy to solder (all component packages are DIP)A double output low noise power supply is an essential tool for any electronics enthusiast. There are many circumstances that a double-output power supply is necessary such as designing pre-amplifiers and powering OPAMPs. In this article, we are going to build a linear power supply that a user can adjust its positive and negative rails independently. Moreover, just an ordinary single-output AC transformer is used at the input.

author: Kleinstein
author_rank: Super Contributor
timestamp: December 30, 2019, 06:20:35 pm
content: If possible one should use a transformer with a split secondary. This way one could use full wave rectification for both sides and get away with smaller (e.g. 40-50%) filter caps and avoid DC current to the transformer with asymmetrical load. This would mean adding another terminal and 2 more diodes at the input. One could still use 2 wires as a fall back for lower power.

author: iMo
author_rank: Super Contributor
timestamp: December 30, 2019, 10:40:11 pm
content: LM317 needs a 22-47uF capacitor from ADJ to ground. That capacitor makes it a little bit lower noise
Electronic Circuitry Diagnosis And Fault Finding! - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: December 30, 2019, 02:48:56 am
content: Electronic Circuitry Diagnosis And Fault Finding! Mr Carlson's Lab192K subscribersLet's diagnose, then find the issues that are creating the fault condition in this receiver. We will just replace/remove the necessary components to make the radio operate again.Posted on 12/29.2019
McIntosh Mc2100 stereo  ampfier  service  and repair /  Parts  1  to 7 - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: December 26, 2019, 12:52:11 am
content: McIntosh Mc2100 service manual for those playing along at home !http://www.tubebooks.org/file_downloads/McIntosh/MC2100.pdfMcIntosh Mc2100 Part 1- It Needs a Lot of Work!•Nov 29, 2019xraytonybPart 2Part 3Part 4Part 5Part 6Part 7Posted on 12/25/2019
Nixie clock drawn 10pm tonight,Subscribe! - Page 1
Forum section: electronics / general

author: insidious nixies
author_rank: Newbie
timestamp: December 20, 2019, 12:47:44 pm
content: insidious nixies....utube...just subscribe guys,u got time...sorry for latenesss.Moderator please shift,if in wrong spot...Go on,get ya hands on me Nixies...10pm

author: Halcyon
author_rank: Unknown
timestamp: December 20, 2019, 01:00:46 pm
content: Spam or AI?

author: EEVblog
author_rank: Unknown
timestamp: December 20, 2019, 01:05:55 pm
content: Quote from: Halcyon on December 20, 2019, 01:00:46 pmStrangely, it seems legit...
*32F103 comparison - Page 1
Forum section: electronics / general

author: GromBeestje
author_rank: Frequent Contributor
timestamp: December 15, 2019, 03:36:49 pm
content: A few years ago, various blogs wrote about the GD32F103. A few months ago, I've noticed here on the forums discussions about the CS32F103. At LCSC there are various 32F103 parts available. I've decided to order some, and compare them. I've published the first part of this comparison on my blog.32F103 Comparison (part 1) :https://www.blaatschaap.be/?p=120
Programmable Police LED Flasher Using an STM8S001 - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: December 10, 2019, 07:22:34 am
content: The STM8S001J3 is an 8-bit microcontroller that offers 8 Kbytes of Flash program memory, plus an integrated true data EEPROM. It is referred to as a low-density device in the STM8S microcontroller family. This MCU offered in a small SO8N package. In this article, we are going to build a programmable Police LED Flasher device that can be used for vehicles, motorcycles, and bicycles.
Truncated YT video loosing content?  - Page 1
Forum section: electronics / general

author: AllTheGearNoIdea
author_rank: Unknown
timestamp: December 05, 2019, 08:38:05 pm
content: About 11 months ago I made video that was about 30 minutes longs. I recently wanted to find the video to double check a calculation for converting rf units from dBm to uV over a 50\75 matching pad.Anyway the part of the video I wanted to watch was about 25 minutes in but when I looked for the information the YouTube version stops 15 minutes in. So I think I lost about 15 minutes of footage which has disappeared from my original uploadNow I am pretty sure that the video was about 30 minutes because I answer comments on some content that were at the end of the video at the 30 minute mark .So my question is does YouTube truncates uploads after a period of time. It could be that my view figures are etc are so low the YT just doesn’t want me. I also think I have videos gone totally missing. Has anyone experienced anything like this. Or do a need a foil hat ??Thanks Regards Chris AKA Allthegearnoidea - link to actually video below.https://youtu.be/5XPy5zhCago

author: ElektroQuark
author_rank: Unknown
timestamp: December 06, 2019, 06:55:26 pm
content: Yes, it's definitely truncated as ends abruptly.Try contacting Youtube () or reloading.

author: AllTheGearNoIdea
author_rank: Unknown
timestamp: December 06, 2019, 09:50:25 pm
content: Thanks. I think if I upload again it will likely loose all the comments. I think I will probably create a new video with an explanation etc that half the video was missing and this is the missing section.Regards Chris

author: station240
author_rank: Unknown
timestamp: December 10, 2019, 12:27:07 am
content: You can contact Youtube via the feedback link bottom left of the page.Or better still, publicly embarrass them viahttps://twitter.com/TeamYouTubewhich works better.
Ripping & Reuploading YouTube vids - Page 1
Forum section: electronics / general

author: @rt
author_rank: Super Contributor
timestamp: November 04, 2019, 12:29:33 pm
content: Hi, I’ve had it happen a number of times for successful videos, where I see benefit for the new uploader if only for views.What is the point though, of someone ripping your video, and posting the exact same thing to YouTube with no advertising,for something with less than 300 views, that will never rank higher than the original?

author: @rt
author_rank: Super Contributor
timestamp: December 08, 2019, 11:38:21 am
content: I realised later that this particular one, being a video about a piece of Windows software,was being re-uploaded with a link in the description to some other software.I obviously didn’t download to see what it actually is, but I guess that’s the motivation.

author: RoGeorge
author_rank: Super Contributor
timestamp: December 08, 2019, 12:04:00 pm
content: Sometimes they are just bots, so once a bot setup is made, the bot will do reuploads day and night with no extra effort from its owner.No matter how small the benefit, since it costs virtually nothing, there will always be someone to take advantage of that.

author: @rt
author_rank: Super Contributor
timestamp: December 08, 2019, 12:15:23 pm
content: I had to report it to YouTube 3 times, but seems to have stopped (fingers crossed), as the last time was some weeks ago.
RCA 3-BX-671 Short Wave Radio Repair - Part 1 and  2  - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: December 06, 2019, 02:58:59 am
content: Service Manual for those playing along at homehttp://www.byan-roper.org/steve/manuals/RCA/RCA%20Strato-World%203-BX-671%20RCA.pdfRCA 3-BX-671 Short Wave Radio Repair - Part 1 and 2•Nov 27, 2019xraytonybPart 1Part 2https://www.youtube.com/attribution_link?a=FXtDCGo91oOvoIU6&u=/watch%3Fv%3DwnKBRC_k9ug%26feature%3Dem-uploademailPosted on 12/05/2019
STONE Display Alternative to Nextion Display - Page 1
Forum section: electronics / general

author: epy
author_rank: Regular Contributor
timestamp: August 15, 2019, 11:29:08 am
content: In this Video we will see how to getting start to use STONE Intelligent TFT Display.This Display is same as Nextion Display with add on features like STONE display can play video and can be flashed using USB Disk (Offline) and USB connection (online) mode.https://youtu.be/gJFL2HQkMEw

author: luma
author_rank: Regular Contributor
timestamp: December 04, 2019, 01:38:35 pm
content: This is positioned as an alternative to Nextion. What is the selling point? Open source firmware or editor? Lower cost? You mention playing video which Nextion can do (poorly), and flashing from USB disk (Nextion uses micro-SD to accomplish the same thing).
Beyond impressive: Branch Education: How PCB's Work - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: December 03, 2019, 12:47:24 am
content: This is seriously impressive:

author: EEVblog
author_rank: Unknown
timestamp: December 03, 2019, 07:16:58 am
content: FYI, this was about 115 hours work to produce!

author: Brumby
author_rank: Unknown
timestamp: December 03, 2019, 08:23:39 am
content: Nicely done.I would fully recommend this as a first introduction to someone wanting to learn about PCBs! It sticks to the basics and by not getting caught up in details that aren't essential on a first outing, a clear understanding is offered.This is just as well as I am sure there will be some newcomers that will be stunned at the scale and complexity of it all.

author: EEVblog
author_rank: Unknown
timestamp: December 03, 2019, 10:35:29 am
content: Quote from: Brumby on December 03, 2019, 08:23:39 amI actually think 8yo Sagan will love this, I'll be sure to show it to him.

author: Brumby
author_rank: Unknown
timestamp: December 03, 2019, 11:00:24 am
content: I think he would too.I know I caught the E bug when I was 8 ... and neither of my parents had ever handled a soldering iron - let alone a wall of scopes..... and we a far more tech savvy society than we were 50 years (or so) ago.
Teardown of an Amrel PPS 35-2 Programmable Power Supply - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: December 01, 2019, 11:13:14 pm
content: Service manual for those playing along at home.http://manuals.repeater-builder.com/te-files/MISCELLANEOUS/AMREL%20PPS%20Series%20Users.pdfTeardown of an Amrel PPS 35-2 Programmable Power Supply•Dec 1, 2019In this video I did a teardown of an Amrel PPS 35-2 programmable power supply.Posted on 12/01/2019
RCA Victor 9-X-571 "Bizarre Looking" RCA tube Radio! - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: November 27, 2019, 07:33:01 pm
content: The schematic diagram for those playing along at home !https://www.tubesandmore.com/schematics/rca-victor-co-inc/9x571Mr Carlson's Lab Bizarre Looking RCA Radio! [Electrical Restoration]Nov 26, 2019Let's restore this RCA Victor 9-X-571 radio together! Mr. Carlson will take you through the entire electrical restoration process."A thing of beauty is a joy for ever": (Outback Dave Jones, John Keats, Mr. Willie Wonka ! )Posted on 11/27/2019
HP5340A 18GHz Frequency Counter  with  Nixie tubes ! - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: November 24, 2019, 08:45:41 pm
content: Service Manualhttps://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1973-04.pdf18GHz Frequency Counter HP5340A (Nixie) - (PWJ159)•Nov 24, 2019I got an HP 5340A 18GHz (!) frequency counter from 1974. I traded it for my old Tektronix RM504 oscilloscope for a good reason.Posted on 11/24/2019"A thing of beauty is a joy for ever":(Outback Dave Jones, John Keats, Mr. Willie Wonka ! )
Revox G36 "vaccum  tube" double track tape recorder tear down ! - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: November 17, 2019, 10:07:02 pm
content: Service Manual !http://sportsbil.com/other/Revox_g36%20service%20manual.pdfRevox G36 Tape Recorder and what's about those tubes anyway? - (PWJ158)103 views•Nov 17, 2019Play with JunkRevox G36 Tape Recorder from 1965, the last model with tube technology. And I also explain how electron tubes or valves work."A thing of beauty is a joy forever" Dave Jones

author: Bud
author_rank: Super Contributor
timestamp: November 20, 2019, 03:21:52 pm
content: Quote from: johnlsenchak on November 17, 2019, 10:07:02 pmThere, fixed it for you

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: November 20, 2019, 03:35:36 pm
content: Willie Wonka also said it !
WeMos D1-Mini to Alexa - Page 1
Forum section: electronics / general

author: Lesterwyatt
author_rank: Regular Contributor
timestamp: November 15, 2019, 10:01:50 pm
content: Interfacing a D1-Mini Wi-Fi module to Alexa to switch items of your choice. In this video I design and build a PCB that houses a relay and the D1-Mini that is activated by Alexa.https://youtu.be/4FQQFenml90
Teardown & Repair of an Agilent N9020A MXA 10Hz - 8.4GHz Spectrum Analyzer - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: November 13, 2019, 11:30:24 pm
content: Service Manualhttp://literature.cdn.keysight.com/litweb/pdf/N9020-90086.pdfTSP #161 - Teardown & Repair of an Agilent N9020A MXA 10Hz - 8.4GHz Spectrum Analyzer (Nov. 2019)•Nov 9, 2019The Signal Pathwww.TheSignalPath.comPosted on 11/13/2019
Hewlett-Packard network  switch, mainboard capacitor replacement  - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: November 11, 2019, 02:50:16 am
content: Network HP switch, Mainboard capacitor replacementMainboard capacitor replacement (HP switch) - PWJ15742 views•Nov 10, 2019Bad capacitors are still problem number one in all kind of electronic devices. Even high priced systems are not immune to that problem. So I made a video to show how capacitors can be replaced.Posted on 11/10/2019

author: KaneTW
author_rank: Frequent Contributor
timestamp: November 11, 2019, 03:35:53 am
content: That is a very dramatic label on the IPA bottle.
Teardown & Repair of an Agilent 1169A 12GHz Smart Active Probe  - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: November 09, 2019, 08:45:57 pm
content: TSP #160 - Teardown & Repair of an Agilent 1169A 12GHz Smart Active Probe•Nov 9, 2019The Signal PathPosted on 11/09/2019
IoT Based Smart Agriculture and Smart Gardening System - Page 1
Forum section: electronics / general

author: epy
author_rank: Regular Contributor
timestamp: November 02, 2019, 06:14:50 am
content: Hello Everyone,Recently i have completed Smart Agriculture monitoring system project using ESP32 and MQTT protocol.This system can be installed in farming and in the gardens for automate the water pump based on soil moisture level.https://youtu.be/kWsI6fyNcQA
A unique design vintage radio - why? - Page 1
Forum section: electronics / general

author: Bud
author_rank: Super Contributor
timestamp: October 29, 2019, 10:52:13 pm
content: A video from the crazy doc Ron Soyland on restoration of a bizarre design vintage radio. Worth watching first few minutes showing the radio, the rest is the usual Glasslinger-style restoration. Anyways, i was thinking -was such design for a specific niche market or people, e.g. for blind people or an earlier shop radio so you can control it without taking your welding gloves off, etc. It perhaps could even be sitting on the floor controlled by the foot. What do you guys think?https://youtu.be/HuBDqpSMM3I

author: SilverSolder
author_rank: Super Contributor
timestamp: October 29, 2019, 11:21:37 pm
content: Here's an entertaining little video on the difference between Art Deco and Streamline Moderne styling (which that radio seems to be an example of!).https://www.bing.com/videos/search?q=The+difference+between+Art+Deco+and+Streamline+Moderne&&view=detail&mid=D9BFA9FE2349487DDAC4D9BFA9FE2349487DDAC4&&FORM=VRDGAR
Generator Time! Let's Get This Onan Running Again! - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 28, 2019, 05:01:10 am
content: Generator Time! Let's Get This Onan Running Again!Mr Carlson's LabOct 27, 2019Backup power for Mr Carlson's Lab. Let's make this generator run againPosted 10/28/2019
Teardown of a Keithley 230 Programmable Four-Quadrant Voltage Source - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 26, 2019, 01:08:55 am
content: https://www.equipnet.com/mp_data/media/5manual_2013911_17279_1.pdfTeardown of a Keithley 230 Programmable Four-Quadrant Voltage Source•Oct 25, 2019I did a teardown of a Keithley 230 programmable voltage source in this video. Voltage readings were verified with a Keithley 196 bench meterPosted on 10/25/2019
McIntosh C8 & C8-S Preamplifier / Compensator Restoration - Part 1 - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 18, 2019, 11:05:18 am
content: Schematic diagramhttp://thetubestore.com/lib/thetubestore/schematics/McIntosh/McIntosh-C8-Owner-Manual-Schematic.pdfMcIntosh C8 & C8-S Preamplifier / Compensator Restoration - Part 1•Oct 13, 2019Blueglow ElectronicsBench testing a complementing pair of McIntosh C8 & C8-S preamps / record compensators. Doing a thorough walkthrough and building a parts BOM.These are a match for a set of MC30 tube amplifiers that will be shown in a separate video.Posted 10/18/2019
My blog: cosenmarco's notes - Page 1
Forum section: electronics / general

author: cosenmarco
author_rank: Regular Contributor
timestamp: December 14, 2019, 10:56:47 am
content: Hi there, I'd like to post here about my blog:https://cosenmarco.github.io/There's only two posts so far and I am planning to write a third one about the Philips PM3266.Any feedback welcome. Please be kind
McIntosh MC30 Tube Amplifier Pair Restoration - Part 1  - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 14, 2019, 05:08:13 am
content: http://thetubestore.com/lib/thetubestore/schematics/McIntosh/McIntosh-MC30-Service-Manual-parts-list-Schematic.pdfMcIntosh MC30 Tube Amplifier Pair Restoration - Part 1Blueglow ElectronicsIn this two part restoration we start out in this video by doing a bench check of the unit and determine what all parts are needed for the restoration. We test the tubes and make decisions on component types to use as well as build a parts list. We do a schematic walkthrough and cover aPosted on 10/14/2019
Latest YouTube video after a long break - Error Correcting Headphone Amplifier - Page 1
Forum section: electronics / general

author: Keicar
author_rank: Regular Contributor
timestamp: September 19, 2019, 06:19:44 am
content: It's been more than 12 months since I last posted on my channel - so here's a gratuitous plug for my latest video:(Eight odd minutes of waffle about a headphone amplifier design incorporating negative feedback via an error amplifier.)https://youtu.be/AZ8ebVwXCSAMeasurements to follow (hopefully in less than 12 months!)...

author: Keicar
author_rank: Regular Contributor
timestamp: October 13, 2019, 12:10:50 am
content: As promised, some measurements (if not quite the definitive measurements I'd hoped for) here:https://youtu.be/qLDrhV-SdSo
Electronic Repair Time! ASHLY 3102 Stereo Equalizer - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 12, 2019, 02:18:10 am
content: Owner's Manualhttps://ashly.com/wp-content/uploads/2015/08/gqx-3102-r10.pdfMr Carlson's LabOct 11, 2019Let's repair a stereo equalizer together! Lots of tech tips in this video to make your repair procedures easier.Posted on 10/11/20
Knight KG85 / KB85 Stereo Tube Amplifier Restoration - Part 1 - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 09, 2019, 07:20:33 pm
content: Schemactic Digram !http://web.mit.edu/glettler/www/projects/antiques/a_kb85_schema.gifKnight KG85 / KB85 Stereo Tube Amplifier Restoration - Part 1•Oct 9, 2019Blueglow ElectronicsBG259 - Part one of our restoration of the Knight (allied radio) KG85 / KB85 Stereo Tube Amplifier. In this video we inspect the unit and make a parts list to order. We had to remove the preamp boards to do so and found a few surprises.Posted on 10/09/2019
Emergency light fail - Page 1
Forum section: electronics / general

author: Lesterwyatt
author_rank: Regular Contributor
timestamp: October 09, 2019, 06:11:11 pm
content: Sorting through my bin of shame and came across an old design of mine (2005). The emergency light works as designed but i overlooked quite an important aspect of the design for it to work as an effective emergency light!https://youtu.be/FRlsS2sUR7s
Siglent SVA1032X 3.2GHz Spectrum & Vector Network Analyzer Review, Teardown - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 07, 2019, 01:16:54 am
content: TSP #159 - Siglent SVA1032X 3.2GHz Spectrum & Vector Network Analyzer Review, Teardown & ExperimentsThe Signal Path•Oct 6, 2019Posted on 10/06/2019
Teardown of a Microwave I/Q Down Converter - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: September 29, 2019, 05:21:49 pm
content: Teardown of a Microwave I/Q Down ConverterKerry WongIn this video I played around with a Daitronics microwave downconverter and did a teardown at the end.Posted 09/29/2019

author: PA0PBZ
author_rank: Super Contributor
timestamp: September 29, 2019, 06:16:38 pm
content: Your LO is here:There is no RF going to the other side of the board:

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: September 29, 2019, 06:25:45 pm
content: A thing of beauty a joy forever"Dave Jones"
Zigbee: the video apparently missing from subscriptions - Page 1
Forum section: electronics / general

author: NiHaoMike
author_rank: Super Contributor
timestamp: September 24, 2019, 12:43:37 am
content: Read the comments to see a bunch of complaints that the video was missing from subscriptions. It's easy to blame Youtube for that, but could it be possible that some setting was wrong when the video was uploaded. (Can someone confirm?)If that problem starts becoming more common, might be time to write a script that polls the upload lists looking for new uploads...
Carver TFM-35x: Smokes and Then Repairs Itself!, Volume  goes to 11 ! - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: September 20, 2019, 11:49:25 pm
content: https://www.manualslib.com/manual/1077993/Carver-M-1-5.html#product-TFM-35xhttp://www.carvermanuals.com/manuals/Amplifiers/TFM-35x%20Owner.pdfCarver TFM-35x: Smokes and Then Repairs Itself!Published on Sep 17, 2019xraytonybPosted 09/20/2019
MyPlayHouse Battery Desulfator Kit v1.0 Build & Review - Page 1
Forum section: electronics / general

author: gnif
author_rank: Unknown
timestamp: September 17, 2019, 04:45:10 pm
content: I have been following Morton Hjorth's channel MyPlayHouse and recently became a Patreon. He does a lot of server and electronics stuff and I find him quite entertaining to watch. He offered v1.0 of this kit to Patreons and I just had to snap one up
Basic Vs Enhanced Nextion Display Comparison - Page 1
Forum section: electronics / general

author: epy
author_rank: Regular Contributor
timestamp: September 07, 2019, 11:03:19 am
content: Hi,In this video i have explained and given demo about the difference between Basic Nextion display and Enhanced Nextion display.We will be using both display of 4.3 inch size.In this video we will cover how fast counter is increments compared with Basic Nextion display. And also Covered Waveform Generation.Example code is link and other details are mentioned in Video Description.https://youtu.be/94d3S2IZZqIThanks in Advance....
It's Alive! The Supreme Vedolyzer From 1939- [Restoration Part 3] - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: July 18, 2019, 01:47:20 am
content: It's Alive! The Supreme Vedolyzer From 1939- [Restoration Part 3]Mr Carlson's LabPublished on Jul 17, 2019The Supreme Vedolyzer comes to life! Let's test it's accuracy without a calibration. (Surprising!)Posted on 07/17/2017

author: jh15
author_rank: Frequent Contributor
timestamp: July 18, 2019, 02:11:39 am
content: Is this Mr. Carlson?

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: July 18, 2019, 03:24:35 am
content: Yes !

author: jh15
author_rank: Frequent Contributor
timestamp: July 31, 2019, 01:49:26 pm
content: Nice video. Makes me want to polish up my Tektronix 575 curve tracer, Tek 535, and some gen-rad stuff.

author: @rt
author_rank: Super Contributor
timestamp: August 04, 2019, 09:19:23 am
content: If you’re Mr Carlson, who’s John Senchack who’s not Canadian?I think you were being asked if YOU were Mr Carlson.

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: September 04, 2019, 11:49:05 am
content: Supreme Alignment With Electronic Tech Tips!Mr Carlson's LabPublished on Sep 3, 2019Alignment of the Supreme Vedolyzer with lots of tips and tricks that will benefit you in your nextPosted on 09/04/2019
How to disable cortana windows 10 2019 - Page 1
Forum section: electronics / general

author: pcdroid13
author_rank: Newbie
timestamp: September 04, 2019, 07:00:45 am
content: See this videohttps://www.youtube.com/watch?v=04ANcs2Gl9o] how to disable cortana windows 10 https://www.youtube.com/watch?v=04ANcs2Gl9o. This video very helped to me.
DIY Power bank for less than 5$ - Page 1
Forum section: electronics / general

author: wintech
author_rank: Contributor
timestamp: September 02, 2019, 07:53:02 am
content: https://youtu.be/WeayJ7kyYSU

author: aandrew
author_rank: Frequent Contributor
timestamp: September 02, 2019, 04:59:55 pm
content: Questionable batteries - check.soldering to batteries (and fuses) - check.flammable enclosure - check.A great example of how *not* to build a $5 battery bank, although I do admit that using the fuses and series resistors will probably keep you safe, especially since the battery bank module doesn't look like it can supply any kind of serious current.Any reason why you chose to solder rather than just using 18650 battery holders such ashttps://www.aliexpress.com/item/32821725795.html(cheaper/alternate options also exist)?

author: ledtester
author_rank: Super Contributor
timestamp: September 02, 2019, 05:35:33 pm
content: Some things I don't understand about the schematic:1. Why is the fuse protecting only one of the batteries in each pair? Seems that putting it in series with the 10R makes more sense.2. Won't there be a huge voltage drop over the 10R resistors? If you want 5V 1A at the output, then you need at least 1.6W from each pair of cells. If a cell pair is charged up to 4V that means a pair needs to deliver 400mA. The drop across the 10R will be 4V! Or am I missing something?

author: wintech
author_rank: Contributor
timestamp: September 03, 2019, 05:01:41 pm
content: @ledtesterWell I've messed up the diagram.The 3 resistors should connect to the + terminal like that:Battery pack 1 to battery pack 2 ,battery pack 3 to battery pack 2 and battery pack 1 to battery pack 3.

author: Monkeh
author_rank: Super Contributor
timestamp: September 03, 2019, 05:07:51 pm
content: So for your less than $5 you've got an ugly, flimsy, bulky package with highly questionable capacity, which can source 1A on a really good day?I'll stick to proper ones.

author: StillTrying
author_rank: Super Contributor
timestamp: September 03, 2019, 05:28:59 pm
content: I'm afraid that's one of the worst 'electrical things' I've ever seen.
Power outlets in the UK - Page 1
Forum section: electronics / general

author: Towger
author_rank: Super Contributor
timestamp: September 02, 2019, 08:15:42 pm
content: https://youtu.be/abqMLqHwqpo

author: Yansi
author_rank: Super Contributor
timestamp: September 02, 2019, 08:19:01 pm
content: Oh no, not this idiot again.
Laney AOR100H Guitar Amp - Part 1: Repairs and How to Bias - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 30, 2019, 04:01:31 am
content: https://el34world.com/charts/Schematics/files/Laney/Laney_aor100_series2.pdfLaney AOR100H Guitar Amp - Part 1: Repairs and How to BiasxraytonybPublished on Aug 25, 2019Posted on 08/29/019
Teardown, Repair & Analysis of a Rohde & Schwarz FSEK Spectrum Analyzer - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 26, 2019, 11:09:19 am
content: TSP #157 - Teardown, Repair & Analysis of a Rohde & Schwarz FSEK 20Hz - 40GHz Spectrum AnalyzerThe Signal PathPublished on Aug 25, 2019Posted on 08/26/2019
PIoneer SX-1980 Service, Repair  & Teardown  Part 1  thru  5 - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 03, 2019, 05:09:42 am
content: https://www.manualslib.com/manual/718289/Pioneer-Sx-1980.htmlPIoneer SX-1980 Part 1Published on Jul 22, 2019Posted 08/03/2019

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 12, 2019, 09:48:53 pm
content: https://www.manualslib.com/manual/718289/Pioneer-Sx-1980.htmlPioneer SX-1980 Part 2 -The Power SupplYxraytonybPublished on Jul 29, 2019Posted 08/12/2019

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 23, 2019, 04:33:09 pm
content: https://www.manualslib.com/manual/718289/Pioneer-Sx-1980.htmlPIoneer SX 1980 Part 3 Power Supply Issues & Testing the Amp ModulesxraytonybPublished on Aug 2, 2019Posted on 08/23/2019
New Articles - Seven Transistor - Page 1
Forum section: electronics / general

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 21, 2019, 03:12:00 am
content: Bugger, it's not technically a blog! Whatever.Reverse-engineering a classic DC-DC converter:https://www.seventransistorlabs.com/DC-DC_RE/index.htmlFlyback transformer design:https://www.seventransistorlabs.com/Articles/FBTransDesign.html(based on a recent thread on this forum)A convergents calculator:https://www.seventransistorlabs.com/Calc/Frac.htmlEnjoy!Tim
Teardown and Modification of an " Electrophoresis Power Supply" - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 18, 2019, 04:53:26 am
content: https://www.marshallscientific.com/v/vspfiles/files/manuals/ec%20600-90%20power%20supply.pdfTeardown and Modification of an Electrophoresis Power SupplyKerry WongPublished on Aug 17, 2019In this video I did a teardown of an EC600-90 electrophoresis high voltage power supply and made some modification so that it can be used as a lab power supplPosted 08/18/2019
Making a Vacuum Pick-Up Tool for SMD/SMT Assembly and Rework - Page 1
Forum section: electronics / general

author: SteveyG
author_rank: Unknown
timestamp: February 24, 2019, 05:43:30 pm
content: Part 1 of a mini-project I'm working on since commercially available solutions are pretty poor.

author: artag
author_rank: Super Contributor
timestamp: November 14, 2019, 01:08:40 pm
content: I've got an OKI pick-up tool which works well. It's a lot simpler though.The pump runs continuously and there's no electric valve. There are two pipes, both connected to the vacuum. One runs to a pneumatic foot switch and allows air to enter when the pedal is pressed. The other runs to the handpiece, which has a hole in the side. If the hole is uncovered the vacuum leaks.There are a small number of different tips and rubber pads to suit different sized parts.In use, you can control pickup using either foot or finger pressure.In general, you pick up the part by covering the handpiece hole which means only the tip is leaking vacuum. Touch the part and it lifts up.To release the part, either move your finger (which can disturb the position you're holding it in) or press the foot pedal.That's it.

author: Shock
author_rank: Super Contributor
timestamp: November 14, 2019, 05:54:01 pm
content: Pace has it's own version the PV-65 Pik-Vac tool is $50, similar to that Weller. I assume the Pace one is foot pedal and finger controlled as well.
RESTORATION- 1940's Majestic Radio Receiver. - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 15, 2019, 04:45:41 am
content: RESTORATION- 1940's Majestic Radio Receiver.Mr Carlson's LabPublished on Aug 13, 2019Here is a complete electrical restoration of a 1940's Majestic 5A410 radio receiver. Grab a snack, sit back and enjoy!Posted 08/15/2019
$13 smartwatch teardown - Page 1
Forum section: electronics / general

author: Chumanista
author_rank: Contributor
timestamp: August 13, 2019, 02:34:54 pm
content: So I decided to find out how is a $13 smartwatch possible. The answer is a $2 Mediatek ASIC and a lot of corner-cutting.The full teardown with more detailed analysys here:I'd love to hear your thoughts about it.

author: mcinque
author_rank: Unknown
timestamp: August 15, 2019, 02:49:52 pm
content: Thanks for sharing. I wonder how much is the margin revenue at that cost.

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 16, 2019, 04:21:15 am
content: The raw material cost would be lower than that of $5-10 smartphones, but it won't have the same kind of economy of scale as those super cheap smartphones take advantage of.
DIY inverter soldering gun - Page 1
Forum section: electronics / general

author: NiHaoMike
author_rank: Super Contributor
timestamp: August 11, 2019, 12:57:54 am
content: Can use a lot of improvements but that's enough to prove it's possible. A big problem with soldering guns is their bulk due to using mains frequency transformers, so replace the transformer with a smaller one driven off an inverter.

author: Shock
author_rank: Super Contributor
timestamp: August 11, 2019, 07:51:45 am
content: I hear the sound of burning skin at 1m55s.
HP EVA6000 RAID disk storage power on and teardown- (PWJ149) "Terminator" - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: July 23, 2019, 11:34:20 pm
content: HP EVA6000 disk storage power on - (PWJ149)Play with JunkPublished on Jul 23, 2019HP EVA6000 disk storage system. Power up and a look inside.Posted on 07/23/2019

author: wkb
author_rank: Super Contributor
timestamp: August 08, 2019, 08:40:39 pm
content: heh... that is while back when I was one of the techs that did the Europeanlaunch of the EVA8000 (its bigger brother) in a posh London setting.Was good fun to live in the Mandarin Oriental Hotel at Hyde ParkWilko
My youtube channel - Page 1
Forum section: electronics / general

author: wintech
author_rank: Contributor
timestamp: July 18, 2019, 10:45:03 am
content: https://www.youtube.com/channel/UCV-4a0B94-WADGQz7n7Mt4A/featured

author: Againgly
author_rank: Newbie
timestamp: August 05, 2019, 07:58:10 am
content: Thanks for the interesting information. I sometimes need a good example. Video is just right for this.

author: wintech
author_rank: Contributor
timestamp: August 08, 2019, 10:06:12 am
content: Thanks!
Teardown, Repair &  Experiment with an Agilent DCA 86100A Wide-Bandwidth Scope - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 05, 2019, 10:26:20 am
content: TSP #156 - Teardown, Repair and Experiment with an Agilent DCA 86100A Wide-Bandwidth OscilloscopeThe Signal PathPublished on Aug 4, 2019Help this guy out subscribe to his channel !Posted 08/05/2019

author: H.O
author_rank: Frequent Contributor
timestamp: August 05, 2019, 03:29:23 pm
content: I've watched TSP for a long time and been a Patreon suporter for quite some time as well - yet I was not actually subscribed to the channel on YoutubeThat has now been rectified.

author: Zucca
author_rank: Unknown
timestamp: August 06, 2019, 06:33:47 am
content: If you are in the EEVBlog but not subscribed at "The Signal Path" channel, I would really want to know why... why?Please tell me why are you missing one of the best EE channel on the evil tube.
Antenna Directivity - Page 1
Forum section: electronics / general

author: @rt
author_rank: Super Contributor
timestamp: August 02, 2019, 09:37:04 am
content: HiI completely reproduced an old Canadian Air Force training film on antenna directivity.New animation is done in Xcode, and running on iOS simulator, and screen captured.I love the original film, but it’s quality is really bad. which lead to this. Hope you enjoy
Blog about human-factors engineering - Page 1
Forum section: electronics / general

author: Rose C
author_rank: Newbie
timestamp: August 02, 2019, 12:00:22 am
content: Hey all. Sharing with you this newly published piece of content about ergonomics:https://www.content.wisestep.com/human-factors-engineering/It talks about the 3 domains of ergonomics, including physical ergonomics which is concerned stuff like equipment, workstations, furniture, and tools. Click the link above for more info.

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 02, 2019, 12:17:11 am
content: First link is dead, second link looks like spam?Tim
Keithley DAQ6510 6.5-Digit Data Acquisition & Multimeter Review & Teardown  - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: July 29, 2019, 03:38:31 am
content: TSP #155 - Keithley DAQ6510 6.5-Digit Data Acquisition & Multimeter Review, Teardown & ExperimentsThe Signal PathPublished on Jul 28, 2019Posted on 07/28/2019
TSP #158 - Tektronix AFG31000 2GS/s Arbitrary Function Generator Review,TeardowN - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: September 16, 2019, 03:08:49 am
content: TSP #158 - Tektronix AFG31000 2GS/s Arbitrary Function Generator Review, Teardown & Experiments•Published on Sep 15, 2019In this episode Shahriar reviews the new Tektronix AFG31000 Arbitrary Function Generator:Posted on 09/15/2019
Restoration or Parts Teardown- You Decide! [Sonizon SO-100] - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: July 03, 2019, 03:21:12 am
content: Mr Carlson's LabPublished on Jul 2, 2019Here is an Interesting electronic device, lets look inside and determine whether to restore it, or usePosted on 07/02/2019

author: chris_leyson
author_rank: Super Contributor
timestamp: July 04, 2019, 04:54:44 pm
content: It's a unique piece of history and I think it should be restored. At first I thought it would use pulsed ultrasound to measure metal thickness, as is frequently done nowadays, but that would necessitate a lot of complexity. It's obvious that they used swept CW ultrasound and the motor driven variable tuning cap is a big clue.So how do you measure metal thickness using swept CW ultrasound ? Imagine the material as a quarter wave open circuit transmision line then at some frequency it will look like a short and at the transmitter end and you can detect that as a sharp null response.For example, say you have a piece of stainless steel about 1/16" thick and you do a sweep and see a dip at 1MHz. At 1MHz a quarter wave will correspond to a 250ns delay and because ultrasound propogates through stainless steel at 5800 m/s then in 250ns it will traveled 1.45mm.You would probably only need a single PZT transducer and you can find the 1/4 wave nulls using a VSWR detector or even simpler, just detect the transmitted amplitude. EDIT: I forgot to add that you would also have to compensate for the line length somehow.

author: Bud
author_rank: Super Contributor
timestamp: July 19, 2019, 12:04:49 am
content: Stunning mechanical quality of the spinnerCan you imagine how precisely balanced the cap +motor assembly should be...

author: wintech
author_rank: Contributor
timestamp: July 20, 2019, 07:22:33 pm
content: Really nice!
Capacitor Outside Foil Sniffer - "All In One Prototype" - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: August 08, 2019, 04:12:48 am
content: The schematic, BOM and parts layout are included in the first video at:https://youtu.be/lE_fTWt-LaUCapacitor Outside Foil Sniffer - All In One PrototypeRestoreOldRadiosPublished on Aug 7, 2019Building off my first prototype, the same simple high impedance buffer amplifier with a transistor switch that illuminates a LED when the outer foil or shield of the capacitor is identified as driven by a variable square wave audio signal from ~60 to 2000 Hz. In addition, a DPDT switch was added to reverse the positive and negative oscillator source.The buffer amplifier circuit is the same (with the exception of the near field or pickup coil - ref. video), while C1 in the oscillator circuit was changed to a 0.047uF capacitor and both potentiometers were changed to 250K.Note: Separate 9V batteries were used to power the two circuits.Posted 08/08/2019

author: David Hess
author_rank: Super Contributor
timestamp: August 08, 2019, 09:48:27 pm
content: That is clever but I just use an oscilloscope and my hand to determine which lead goes to the outside shield.
Replacing a Speaker Surround ( Re-foaming a Speaker) - Two Different Methods - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: July 09, 2019, 03:16:52 am
content: Replacing a Speaker Surround (A.K.A. Re-foaming a Speaker) - Two Different MethodsxraytonybPublished on Jul 8, 2019Posted 07/08/2019
Ben Eater's "World's worst video card" (discrete 7400 ICs to make a VGA signal) - Page 1
Forum section: electronics / general

author: sokoloff
author_rank: Super Contributor
timestamp: July 07, 2019, 08:49:24 pm
content: Just to the point of displaying a valid HSYNC and VSYNC, so it's only a blank screen now.

author: wilfred
author_rank: Super Contributor
timestamp: July 08, 2019, 12:47:24 am
content: I'm looking forward to the next video. When it can read memory and display useful pixels.A similar project is published here.http://www.pyroelectro.com/projects/masochists_video_card/Circuit Cellar magazine Nov 2004 had an article about implementing a VGA controller by Enoch Hwang.As I recall it had an interesting idea about where to set the zero count to simplify the logic. Worth a read even if I mis-remember.http://faculty.lasierra.edu/~ehwang/public/mypublications/VGA%20Monitor%20Controller.pdf
Using ceramic capacitors may blow up your design... - Page 1
Forum section: electronics / general

author: David Hess
author_rank: Super Contributor
timestamp: July 05, 2019, 11:30:40 pm
content: Bob Pease wrote about that a couple decades ago. It can also be a problem when a low value input capacitor is used with a line transformer which has high leakage inductance and the input current drops rapidly like when the regulator goes into current limiting. You might find this configuration in cheap LM317 regulators stuck on a wall-wart.The issue was known of in the past and application notes sometimes show a low value aluminum electrolytic or solid tantalum capacitor being used instead of or in addition to a ceramic capacitor because their built in ESR improves the situation.With a 22 microfarad ceramic capacitor in a high reliability power supply though, adding another larger electrolytic capacitor is probably not an option. In the past they used hermetic wet or solid tantalum capacitors instead.
Powering up the IBM Z890 mainframe and teardown - (PWJ148) - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: July 11, 2019, 05:12:19 am
content: Powering up the IBM Z890 mainframe and teardown - (PWJ148)Play with JunkPublished on Jul 10, 2019We were cleaning up our stock. Some older systems have to go because they became obsolete. Here is a view of the IBM Z890 mainframe system. It is (more or less) complete and working. A pity to throw it away but we need space now.Posted on 07/11/2019
James Allen's YouTube Channel - Page 1
Forum section: electronics / general

author: JamesAllen
author_rank: Newbie
timestamp: July 04, 2019, 01:42:37 pm
content: Hi EEVBlog,I have a very small YouTube channel that I hope is OK to post herehttps://www.youtube.com/channel/UCsvmy7DgDYXiC49-Bb1RtCwI have a few videos on here from the last year or so. I tend to document the project that I'm working on rather than focus on one specific area. I have teardowns, kit builds, reviews etc.I am very much a hobbyist where I enjoy the learning curves I find. Any feedback is always appreciated. I've studied Electronics and Sound Engineering and I'm always open to new conceptsMany ThanksJames Allen,UK

author: schmitt trigger
author_rank: Super Contributor
timestamp: July 04, 2019, 01:53:32 pm
content: Will view it when I arrive home this evening.Then I will provide feedback.One key thing to to keep in mind is the length of the video....let's say around 15 minutes for most topics, 25 max for extended topics. Which appears that you are doing already.
Marantz 2220b  receiver      "Beach disease!" - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: June 29, 2019, 05:42:28 pm
content: Jordan PierPublished on Jun 29, 2019This poor marantz 2220b has wasted hours of time to restore marginal operation. Don't buy a rust bucket. It's just not worth it.Posted 06/29/2019
Dick Smith's New Youtube Channel - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: June 28, 2019, 12:27:46 am
content: Tricky Dick Smith has a new Youtube channel and he's not afraid to use it.I helped him set up the channel, he's starting from scratch.

author: Muttley Snickers
author_rank: Unknown
timestamp: June 29, 2019, 05:32:51 am
content: Quote from: EEVblog on June 28, 2019, 12:27:46 amHe already had a channel with similar content.https://www.youtube.com/channel/UCDGZtootdvW0UatFiofPOsw

author: digsys
author_rank: Unknown
timestamp: June 29, 2019, 06:08:36 am
content: Go for the Jugular, Dick !! He's awesome

author: EEVblog
author_rank: Unknown
timestamp: June 29, 2019, 07:58:12 am
content: Quote from: Muttley Snickers on June 29, 2019, 05:32:51 amThat was not his channel, he had no idea who set that up. Those videos were pulled from his Facebook page.

author: Electro Detective
author_rank: Super Contributor
timestamp: June 29, 2019, 10:43:14 am
content: Love it!Mr. Dick Smith sinking in the boots on unpatriotic hellbound filthy rich wankersShifty, slimy tax dodging asset hoarding, self serving 'g0ds' doing no one favorsMagazine should feature a 'Battlers List' of real achieversand ignore these 'anonymous/secret charity donation' rich0s$250k for a crummy wrist watchI'd demand a time travel function for that price
Reset chip printer Brother MFC J6930dw - Page 1
Forum section: electronics / general

author: iNabil
author_rank: Newbie
timestamp: June 26, 2019, 06:36:32 pm
content: Hi Guys,I have Brother MFC J6930dw witch their cartridges were empty, I put compatible cartridges but the printer cannot detect them, so I would like either downgrade the printer's firmware or reset original chip. Please help me to solve this issue.thanks in advance.

author: wasyoungonce
author_rank: Frequent Contributor
timestamp: June 27, 2019, 01:35:45 am
content: I think there are 2 ways to overcome this. Replace the Chip or reset the chip. Your printer uses LC3317 and LC3319 low and high capacity cartridges. You should be able to find a "chip resetter" on Aliexpress....do a search and do check google as there may be a couple of "gotcha's" in sucessfully resetting them...The 1st link shows some "gotchas"https://www.rihac.com.au/product_info.php/chip-resetter-lc231-lc233-cartridges-p-2510https://www.aliexpress.com/w/wholesale-brother-ink-cartridge-chip-resetter.htmlI abhor mfgrs especially Brother using cartridge chips.....GrrrrrrGood luck