hybridfree/eevblog-posts huggingface dataset:
RP2040 and INA219, 3.2-inch GUI for DC Voltage, Current, and Power - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: December 24, 2024, 12:35:37 pm
content: This project involves designing and implementing a voltage, current, and power meter circuit, leveraging the powerful RP2040 Zero microcontroller, the precision INA219 sensor, and a 3.2-inch ILI9341 SPI 320x240 TFT display. The RP2040 Zero, featuring a dual-core Arm Cortex-M0+ processor running at up to 133 MHz, provides ample computational power and I/O flexibility for real-time data acquisition and processing. The INA219 sensor, known for its high accuracy and wide measurement range, offers shunt-based current sensing and voltage measurement capabilities, with a resolution of 12 bits and a maximum voltage range of 26V.The 3.2-inch 320x240 TFT display, with its vibrant color rendering and responsive interface, provides a user-friendly graphical interface for displaying voltage, current, and power values.
Trying to Visualize Inductors in DC-DC converters - Page 1
Forum section: electronics / general

author: longh
author_rank: Contributor
timestamp: November 17, 2024, 02:03:22 am
content: Hello everyone,For fun I'm trying to make YouTube videos where I talk about random topics I'm interested in.Today I made one about DC-DC convertershttps://youtu.be/LJI2dZOq0Yc?feature=sharedThis is the first time I've tried this format, an overhead camera and just writing on a piece of paper. Any suggestions on how to make it better (less dry) would be appreciated.Thanks,-Hunter

author: thm_w
author_rank: Super Contributor
timestamp: November 18, 2024, 10:10:27 pm
content: I think you'd have to get into animated graphics, which is a lot of work.That and maybe speaking quickly (see project farm).But the topic itself is dry as you say, not a whole lot can be done.

author: Bud
author_rank: Super Contributor
timestamp: December 15, 2024, 02:27:57 am
content: I grew up in a family that loved books. Books passed from parents to kids to grandkids. It hurts me to see when people bastardize books by writing notes, calculations, making drawings and writing random shit on pages. I get it is your property but it is a source of learning for you, maybe you should treat your books with respect.
2023 Interview with Jeri Ellsworth (reverse engr, FPGA, etc) - Page 1
Forum section: electronics / general

author: magic
author_rank: Super Contributor
timestamp: December 14, 2024, 12:41:20 pm
content: Thanks, I have seen some projects of hers before but I never realized she got that far into commercial VR (not my cup of tea, I guess).Bud should watch this
1A USB Type-C Lithium Battery Charger (With Protection) - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: October 28, 2024, 03:30:00 pm
content: This project presents a 1A USB Type-C lithium battery charger with integrated battery protection. The design features the XT2025 charging IC, which allows charging current adjustments through a configurable resistor, offering flexibility in battery management. The XB7608 protection chip enhances safety by safeguarding against overcharge, over-discharge, and short-circuits, ensuring battery longevity and reliability. The charger incorporates dual LED indicators to display the charging status, simplifying user interaction and monitoring. This solution provides an efficient, user-friendly, and adjustable charging system suitable for various lithium battery-powered applications.Schematic & PCB: Altium Designer & Altium-365
PolyMatt - A channel I just discovered - Page 1
Forum section: electronics / general

author: Halcyon
author_rank: Unknown
timestamp: November 18, 2024, 08:01:21 am
content: This video got me started:<14k subscribers, but deserving of many more. Really polished, interesting content.

author: thm_w
author_rank: Super Contributor
timestamp: November 18, 2024, 10:11:57 pm
content: Is it really that expensive for dry transfers?

author: BraadSher
author_rank: Newbie
timestamp: November 21, 2024, 04:40:11 pm
content: yeah the video is cool but i think he should do like before and after comparison😊

author: skillfoxy35
author_rank: Newbie
timestamp: December 12, 2024, 07:27:02 am
content: Thank you, it's been very interesting to watch the recovery
Designing a LNA board - Page 1
Forum section: electronics / general

author: nuclearrambo
author_rank: Newbie
timestamp: November 04, 2024, 03:41:01 pm
content: Just wanted to share my two part blog series where I design a LNA+BPF.Might be useful for someone getting into RF design. This isn't a very complicated board but I had fun designing it and finally testing it.https://nuclearrambo.com/wordpress/designing-and-testing-a-low-noise-amplifier-part-1/https://nuclearrambo.com/wordpress/designing-and-testing-a-low-noise-amplifier-part-2/I also have other projects posted on the blog that might interest you.
Isolated H-Bridge DC Motor Driver Circuit - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: November 27, 2024, 01:21:04 pm
content: I developed a robust H-bridge motor driver for brushed DC motors, leveraging two IR2104 half-bridge drivers, four powerful IRF3205 MOSFETs for high current handling, and a digital isolation chip to ensure electrical safety and noise immunity. This design offers precise bidirectional motor control with high efficiency, making it suitable for demanding applications. The implementation emphasizes reliability, scalability, and seamless integration into existing control systems, showcasing an optimized approach to DC motor driving solutions.Schematic & PCB: Altium Designer & Altium-365
Teardown of the "Flamezum" 2000W PSW Inverter - Page 1
Forum section: electronics / general

author: Dubyagee
author_rank: Newbie
timestamp: October 01, 2024, 08:41:48 pm
content: I know this is an old post but I am interested in this tear down. I have this under powered inverter and would like to know why and if it is correctable.

author: coromonadalix
author_rank: Super Contributor
timestamp: October 01, 2024, 09:42:53 pm
content: search flamezum and you'll get many video reviews ...
85-260VAC to Dual +/-15VDC-0.5A Switching Power Supply - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: September 27, 2024, 10:34:13 am
content: This video introduces an AC-to-DC Flyback switching power supply that converts universal 50Hz AC input (85-V to 260VAC) to dual-output (positive and negative) 15VDC to 0.5A (2*7.5W), which can be used in various applications, such as powering dual-supply op amps, amplifiers, and waveform generators circuits.Schematic/PCB: Altium Designer/Altium-365Test & Measurement: Siglent SDL1020X-E DC Load, Siglent SDS2102X Plus DSO
DIY AC-to-DC 12V Flyback SMPS For Beginners - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: July 28, 2024, 08:17:42 am
content: The isolated AC-to-DC flyback converter is the most commonly used power supply type for home and industrial devices. Fear of the main voltage and complexity of calculations cause electronic beginners and enthusiasts to procrastinate DIY such circuits. This project introduces an AC-to-DC flyback switching power supply that converts universal 50Hz AC input (85V-260VAC) to 12VDC-0.5A (6W) using the minimum components in the BOM, both price and quantity.CAD: Altium Designer, Altium-365Tools: Siglent SDL1020X DC Load, Siglent SDS2102X Plus Oscilloscope, Vevor SC240M thermal Imaging Camera

author: floobydust
author_rank: Super Contributor
timestamp: August 02, 2024, 10:29:49 pm
content: What makes you think your power supply is safe? Any testing? Hi-pot?I have an issue with you posting a design, empowering beginners to make a mains-powered SMPS- that is a theoretical, and possibly unsafe design.Your spacings - creepage and clearance have problems. What was your goal?Your trace spacings under the bridge rectifier are inadequate and too thin in general. Did you set a rule in Altium?You never put a ground-pour under an opto-coupler/Y-cap. The transformer mounting pin G2 is also close to the secondary-side ground pour, and cores are not treated as insulated.You have no safety discharge resistor for the filter capacitor C1.Where are the transformer winding details? Any insulating tape in there? How much?
iBoard Repair - Aaron Harrington - Page 1
Forum section: electronics / general

author: Shock
author_rank: Super Contributor
timestamp: July 21, 2024, 02:49:30 am
content: Has some nice repair videos and clean skills.

author: thm_w
author_rank: Super Contributor
timestamp: July 22, 2024, 08:58:02 pm
content: Some kind of underfill scraping tool at 25:30, surprised none of the pads came off.
Making Embedded Systems - A Reader's Review - Page 1
Forum section: electronics / general

author: sausage
author_rank: Regular Contributor
timestamp: July 18, 2024, 12:16:20 pm
content: I wrote a book review on Elecia White's Making Embedded Systems 2nd Edition, if you're interested to check it out:https://blog.waynejohnson.net/doku.php/making_embedded_systemsShort version: I loved it, a super helpful resource.
More Youtuber Burnout - DSLR Shooter - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: January 18, 2024, 04:37:33 am
content: DSLR Shooter:

author: Psi
author_rank: Super Contributor
timestamp: January 18, 2024, 04:48:12 am
content: If YouTubers feeling burn-out made the changes they wanted to make, without telling anyone they were going to do it, the vast majority of their users probably wouldn't even notice.Most peoples YouTube subscriptions feed is full of way more videos than they actually watch anyway.Not saying there's anything wrong with making a video about it, I just think they care a lot more about it than their users do.If you have a normal job you get feedback from your boss about your performance. If you do YouTube you get money from google but that has little relationship to how your users feel about your content.I bet it's kind of like if you had a boss who stood over your desk all day looking directly at you but never saying a word.You'd keep working harder and harder until burnout.

author: EEVblog
author_rank: Unknown
timestamp: January 18, 2024, 06:23:40 am
content: Quote from: Psi on January 18, 2024, 04:48:12 am100% True.QuoteYup, I see no real upside in making such a video, apart from your own mental health.I've seen a ton of these videos, and I get it, but I'm also like:

author: Bud
author_rank: Super Contributor
timestamp: January 18, 2024, 06:33:56 am
content: Why not make another extra buck from a goodbye video

author: madsbarnkob
author_rank: Frequent Contributor
timestamp: February 23, 2024, 06:05:17 pm
content: The sympathy vote... its basic human psychology and it works.I have thought about it. A cry video about the algorithm being unfair and how its the evil Internet keeping me from fame!As my wife says: "If you want to go viral, maybe you should make some interesting videos"sympathy vote goes here -->https://www.youtube.com/@KaizerPowerElectronicsDk

author: nonlinearschool
author_rank: Contributor
timestamp: July 11, 2024, 08:42:41 am
content: I do not mean to be hard or mean here,Since he is asking where does he go from there? New direction? (I did not actually watch his video).I don't know? How about selling off the excess equipment? and I don't know like try doing the business and get some assignments? Looks like he may have enough excess equipment that could fund a year or two of doing so.

author: EEVblog
author_rank: Unknown
timestamp: July 11, 2024, 09:04:44 am
content: Quote from: nonlinearschool on July 11, 2024, 08:42:41 amHe's done two more videos since them, month or two apart, same format really, so still going.
Cheap PIR Motion Sensor Repair - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: November 06, 2024, 09:36:59 am
content: In this video, I walk you through the steps of how I fixed a common issue in PIR motion detection sensors. This sensor had a faulty bulging electrolytic capacitor and a 470nF MKT/Polyester type capacitor that had lost its capacitance to 350nF, causing it to fail to deliver adequate current to the circuit and causing instability. It was not mandatory, but I replaced the rest of the electrolytic capacitors with new JWCO branded capacitors as well, which are good in quality, but cheap and affordable, not as expensive as Rubycon or Nichicon.
DC to DC Boost Converter Circuit Using XL6019 - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: June 28, 2024, 10:41:27 am
content: The output voltage of USB Type-C mobile chargers and power banks is fixed at 5V. A small efficient boost converter circuit can convert them to a 12V power source. 12V is one of the most commonly used voltage levels to supply electronic devices.Schematic and PCB have been designed using Altium Designer 24. The PCB board has been tested against output voltage stability, temperature stress, and output noise using Siglent SDL1020X-E DC load, VEVOR SC240M thermal imaging camera, and Siglent SDS1104X-E oscilloscope. The PCB layout of the converter was designed with several precautions such as implementing power planes, low EMI, VIAs, and low ground path impedance. The input connector is a 5A USB Type-C, which makes it suitable for nowadays portable applications.
'60s Vintage Vacuum Tube Catalogs from Poland - Page 1
Forum section: electronics / general

author: Keri Szafir
author_rank: Contributor
timestamp: May 31, 2024, 07:49:16 pm
content: For your enjoyment - we had a few good ones! All data, no bullshit.

author: TimFox
author_rank: Super Contributor
timestamp: May 31, 2024, 09:18:01 pm
content: I have two editions of the Polish book. My go-to reference was re-printed by a German vendor under the title "Electronic Universal Vade-Mecum" (original publication date not shown).My favorite bit is from the Magic-Eye Tube section: see the illustrations for file 387.The patterns for different tubes are referenced to a slide-rule receiver frequency dial, with marks for "Warszawa", "Geneve", and "Mockba" transmissions.From the sketches of the eye pattern, "Geneve" is obviously the desired station.
5A Adjustable Digital DC Load - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: May 30, 2024, 08:54:49 am
content: A DC load is an essential testing tool for any electronic enthusiast, especially for testing and repairing power supplies. An adjustable DC load can limit the current at any desired level, which makes it suitable to perform various tests because some problems of the feedback loop are only detectable by variable load tests. Also for any SMPS repair attempt, the output should be tested against some loads, not just voltage stability, because the problem might lie within the current sensing on the primary side (a common problem of Flyback SMPSs).The schematic and PCB have been designed using Altium Designer 24 and the Gerber files are provided to download from the Altium-365 cloud space. You can power the board using your mobile phone USB Type-C charger; no external power supply is necessary.
YouTube channel about electronics and rockets - Page 1
Forum section: electronics / general

author: DanInvents
author_rank: Contributor
timestamp: May 21, 2024, 05:51:39 am
content: Hi!In my YouTube channel I talk about my hobbies; rockets and electronics. From time to time I implement a circuit following a design from the Analog Devices website, or fly a rocket and make a video about it. Here is an exampleof a heart rate monitor that I built.I have also designed a flight computer for rocketshttps://www.tindie.com/products/25820/that I have been selling in Tindie. It is amazing how far PCB manufacturing capabilities have gone that nowadays a hobbyist can bring a product to market on his own.Anyway, I'm open to ideas and suggestions for future content.Cheers!
Good podcast for computing history fans - Page 1
Forum section: electronics / general

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: May 20, 2024, 10:15:07 am
content: https://microarch.club/Only listened to 3 so far but lots of interesting deep-level details on the development of processors and related tech from the people who were there

author: RoGeorge
author_rank: Super Contributor
timestamp: May 20, 2024, 02:08:34 pm
content: Wow, AM2900! He got my entire attention.The documentation of the AM2900 family was the source where from I first understood how a microprocessor works, and its architecture, and from there how computers work, in general. It was an enlightening lecture for me back then.Listening to ep.1 right now, thanks for the link.
4.5-W 600-Lumen LED Emergency Light Circuit - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: April 29, 2024, 10:59:40 am
content: In this video, I have introduced an emergency LED light circuit using the SOT23-6 MP3202 chip. The board is compact and can be powered using a mobile phone USB Type C, a power bank, or any portable 5V power source.Schematic & PCB: Altium Designer, Altium-365
Atari Lynx Videos - Page 1
Forum section: electronics / general

author: @rt
author_rank: Super Contributor
timestamp: April 09, 2024, 07:31:59 pm
content: Hi GuysI have made two videos about the Atari Lynx that were quite some work,and I think they have something to offer. Not clickbait!https://youtu.be/U8IOUvt0b2g?si=lZOdnH-oxPNoIZxAhttps://youtu.be/8Na0BShHsgg?si=YmxfzQj1SKfRDdaY
12V-7A AC to DC Switching Power Supply [SMPS] - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: March 30, 2024, 12:27:54 pm
content: The maximum power delivery of this power supply is 84W, which means it can handle 7A continuously at 12V output. The transformer can deliver higher currents, however, the educational purpose (hand winding of the transformer) and thermal stress on the switching controller were considered (the peak current of the controller’s MOSFET is around 2.3A, at 7A). The controller chip is KA1M0565, which operates using a 470K startup resistor and a small auxiliary winding on the transformer. The transformer's ferrite core is ER28-17-11, and the switching frequency is 67KHz. A potentiometer allows the user to adjust the output voltage precisely and set it to 12V.To design the schematic and PCB, I used Altium Designer 24 and the Octopart website to quickly gather the necessary component information and generate the BOM. I used the Siglent SDL1020X-E DC Load and Siglent SDS2102X Plus oscilloscope to test the board for voltage drop, current delivery, and output noise. At the maximum output current, the output voltage drop is around 40mV only.
The secret life of machines 1980s BBC the first true eevblog tech teletube b4YT - Page 1
Forum section: electronics / general

author: lexibeamin
author_rank: Contributor
timestamp: March 25, 2024, 07:41:46 pm
content: used to watch this when we got 30 yes that right THIRTY channels of cable. And you know what? There wasn't shit on until nbc at 8:00 when ST TNG was on. "Number one: I order you to take a number two, on the bridge" Worf: "Captain I recommend photon torpedoes; full spread" Jean Luc " No MR warf we will out smart them at their own game" Warf "Sssssshiiiiiiiiitttt nig..." Lights up a space age NewPort with his phaser and " LESS TALK MORE SYNTHYHOL".

author: Simon
author_rank: Unknown
timestamp: March 26, 2024, 06:39:53 pm
content: For some reason we can't make programs like this any more. The presenters of science programs talk so slowly and take so long to say one sentence that my mind has already wandered. Then que some background music and some stock footage and then finally another sentence prized out at such length that I forgot what the last sentence was and I've lost interest.
How to Compile the Raspberry Pi Pico C/C++ Code using VSCode and SDK in Windows - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: March 06, 2024, 09:48:47 am
content: There are three straightforward options to write the code for the Pico/RP2040: Arduino (C/C++), MicroPython (Thonny, MU Editor, … etc.), and VSCode (C/C++). I prefer C/C++ for RP2040 over MicroPython because in some cases MicroPython limits the user, and available hardware libraries are also limited, but on the other side, configuring a Windows machine and VSCode IDE for the Pico is challenging. This article introduces a piece-of-cake method to overcome this problem.
Temperature, Pressure, Altitude on a GUI using Raspberry Pi Pico, BMP280, LVGL - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: February 29, 2024, 07:40:46 am
content: In this article/video, I used a variant of the Pico board (RP2040 Zero), a digital Bosch I2C BMP280 sensor, and a 3.2” SPI ILI9341 colorful TFT display to build a graphical temperature, pressure, and altitude measurement unit that can be used to monitor the home, workplace, mobile devices, vehicles … etc.The most challenging part of this project is the RP2040 code. I used the Pico C/C++ SDK library and invested significant time in designing the GUI and debugging the code to avoid memory leaks. I engaged both cores of the MCU to run the time-constraint tasks simultaneously.To design the schematic and PCB, I used Altium Designer 24 and the Octopart website to quickly gather the necessary component information and generate the BOM. You can power the unit using a USB Type-C cable of a mobile charger or your 5V-regulated power source.
Hallicrafters SX-25 Alignment Intro Video - Page 1
Forum section: electronics / general

author: Peithojr
author_rank: Contributor
timestamp: February 19, 2024, 08:25:01 am
content: Hallicrafters SX-25 Alignment Intro Video!https://youtu.be/OlWUlvyBRwchttps://youtu.be/otdspsOdrvM
Northern Radio by National HRO 1936 was in Service in Alaska - Page 1
Forum section: electronics / general

author: Peithojr
author_rank: Contributor
timestamp: February 08, 2024, 06:18:39 am
content: Northern Radio by National HRO 1936 was in Service in Alaska, i seen this radio in an old black and white film years ago!https://youtu.be/ExkQp3qOlBA

author: audiotubes
author_rank: Regular Contributor
timestamp: February 08, 2024, 05:44:23 pm
content: I used an NC 303 as my main station receiver for years. Absolutely beautiful piece of gear. The CW filter was so good it was hard to believe.
Voltlog #188 - LIDL Silvercrest Thermostat Teardown - Page 1
Forum section: electronics / general

author: johnlsenchak
author_rank: Frequent Contributor
timestamp: October 27, 2018, 05:23:57 pm
content: Voltlog #188 - LIDL Silvercrest Thermostat TeardownVoltLogPublished on Oct 23, 2018In today’s video I do a teardown of the LIDL Silvercrest radiator thermostat.Posted 10/27/2017

author: pelule
author_rank: Frequent Contributor
timestamp: October 27, 2018, 08:23:28 pm
content: Nice teardown.But I recommend to remove the blue plastic transport securing device on the valve.It protects the thread and the valve pin.So if you remove it, you are able to mount the thermostats./PeLuLe

author: el737
author_rank: Newbie
timestamp: February 18, 2024, 01:37:45 pm
content: Hi,anyone have an idea if it is possible to ready any temperature data from those control points or via mini USB (mine has that)? Or even sending commands to this device (like on/off, set temperature or whatnot)? If that is possible, then I could easily add WiFi or similar "smart" stuff to this. I know it's relatively cheap to buy one that already has all that, but anyway I'd like to try.Or in general, how would a person start figuring out what the control points on such boards do? I'm comfortable using Arduinos and similar boards, but I never got into this "reverse engineering" realm.Thanks.

author: el737
author_rank: Newbie
timestamp: February 18, 2024, 03:45:52 pm
content: Meanwhile I've found this link where some things are explained, but my model isn't listed:https://www.mikrocontroller.net/articles/Sparmatic_HeizungsthermostateHere's what I have (chip is MB95F374L):

author: el737
author_rank: Newbie
timestamp: February 18, 2024, 06:59:21 pm
content: And another thing - I managed to connect the mini USB port to PC viaUSB to TTL. I am gettingsomeserial communication. Nothing like identification or whatever, but I can send text and get an answer. For now whatever I send I only get "0000" back (at 19200) or the letter "U" on a slower speed.Also, after few minutes the communication stops. I get nothing back until I power the device off/on
A brief history of Micronta Multitesters - Page 1
Forum section: electronics / general

author: LektroiD
author_rank: Frequent Contributor
timestamp: February 05, 2024, 08:58:24 pm
content: A couple of weeks back, I left a comment on one of Dave's videos mentioning my collection of Micronta multitesters, I got an instant reply saying "make a video!". I'd already recorded a load of footage during lockdown, but was waiting to see if I could source some of the less popular models (not an easy task). So I've used the footage I already had, and put together a video which I uploaded onto my sister channel - which currently stands at around 10 subscribers (my main doesn't have that many more, but it's only been running for around 18 years). Anyway, moving on, here's the video for those who have fond memories of their Tandy / Radio Shack meters.I am trying to source the rest of the collection for a part 2, I have put a list of my needs in the description and how to contact me, for those that happen to have one kicking around the attic - I'm not trying to push for free stuff, but can't afford fortunes either.Without further adeu, I present to you, dear viewer, the Micronta collection (as it currently stands):
Dynamic Temperature and Relay Control & Monitoring over WiFi using ESP01 - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: January 30, 2024, 11:25:27 am
content: To design the schematic and PCB, I used Altium Designer, embedded a DS18B20 sensor to sense the temperature, and a small 5V-10A Panasonic Relay to control an external device. You can power the board using a 5V USB Type-C cable, such as a mobile phone charger or a power bank. I paid attention to supply filtering and decoupling to ensure the stable operation of the device.
For The First Time in The History of Electronics  - Page 1
Forum section: electronics / general

author: Zada Moore
author_rank: Newbie
timestamp: January 12, 2024, 06:02:32 am
content: I don't known what is the relationship between birds and the electronic devices? However, the cute birds looks very beautiful.

author: RoGeorge
author_rank: Super Contributor
timestamp: January 12, 2024, 07:43:50 am
content: Meetskaarjand his assistant,Mr Cucu, 13 years ago.Sound is in Romanian, but TL;DR, Mr Cucu is invited to insert the floppy disk into the unit (8'' FDD, made in FEPER, Romania). Mr Cucu is a little shy to the camera, soskaarjis formatting the disk while Mr.Cucu is checking around the lab.Mr. Cucu spent his days as a lab assistant, and eventually has had a violent death, being eaten by a cat.skaarjcontinued to restore vintage computers and peripherals, made in Romania or in the Eastern Europe of the cold war, e.g:Rohttps://www.elforum.info/topic/140304-coral-independent-pdp11-felix-cfelix-m-robotron-emulator-unitate-de-banda-magnetica-pe-9-piste/Enhttps://hackaday.io/skaarj

author: SeanB
author_rank: Super Contributor
timestamp: January 12, 2024, 10:06:24 am
content: Magpie but looks a lot like a mynah, which is a very good talker, and pretty smart. Late MIL had one, called "Stupid Bird", who went with her to Netherlands when she retired there on pension, along with Dibbis the dog. Both bird and dog lived to a very ripe old age, and both enjoyed playing in snow.
The Scullcom Hobby Electronics Youtube Channel - Page 1
Forum section: electronics / general

author: German_EE
author_rank: Super Contributor
timestamp: December 26, 2018, 02:55:10 pm
content: Does anyone know what has happened to the guy who presents the 'Scullcom' channel on Youtube? Six months ago he presented part one of a project and then vanished.

author: beanflying
author_rank: Super Contributor
timestamp: December 26, 2018, 03:12:17 pm
content: Made me worry he wasn't well. Good News 3 days ago off the comments sectionDan Begallie3 days agoHe seems to be working on a book on family history that in his own words has "taking longer than I first thought". Say's he'll be back "soon".http://www.scullcom.uk/function-generator-mk2/#comments﻿

author: Fleetz
author_rank: Regular Contributor
timestamp: December 26, 2018, 05:20:13 pm
content: Maybe not so soon.In January of 2017 I started my family history thinking it would take no longer than two months. I finished writing up my family history in November. If I wasn’t sleeping or helping looking after our grandkids I was researching and documenting our history.So Mr Scullcom might not be coming up for air anytime soon if like me he follows where the research takes you. It can become all consuming. I hope he is back soon as he does his projects amazingly professional.

author: TA2AWX
author_rank: Newbie
timestamp: December 22, 2023, 01:22:36 pm
content: I know I am posting to a 5 year old topic, but Unfortunately, Louis Scully never returned to YouTube. There is no update on his web page too. I am worried, his channel was one of the best educational ones I have ever followed, I hope all is well with him. If anyone knows anything, please let us know.
Keritech Electronics Youtube Channel - Two Years! - Page 1
Forum section: electronics / general

author: Keri Szafir
author_rank: Contributor
timestamp: December 18, 2023, 10:23:45 pm
content: Hello there, kitties - I'm Keri, the vacuum tube witch! Running the most underrated tech channel on Youtube for two years now.Just who am I?I'm a 37 years old autistic trans woman from Poland, trying to get by on a budget tighter than Ethel Granger's laces, running my electronics lab in the center of Gdańsk. I've been doing electronics since I was a teen, learned the stuff on secondhand components from dismantled devices and schematics/articles in the magazines or the web. Real deal discrete transistors - none of that Arduino rubbish! I stayed away from integrated circuits for a long time too....and what the F am I even doing there?My channel is primarily focused on vintage electronics, audio and vacuum tube tech. Teardown videos, fixing stuff, building amps, some oddball projects.I got hooked on the tubes in my high school years, massively inspired by Fallout, which sparked my interest in the Cold War era electronic engineering. I serviced vintage gear, its beauty captivated me. I started building my own amplifiers, every one of them is unique and custom made with vintage parts. I use whatever I can get. I'm a scavenger at heart, salvaging and reviving old tech. I'm also getting into tinkering with vintage computers, it's fascinating. Secretly dreaming of making an all tube computer someday... too many Usagi Electric inspirations, I love his channel.How do I run my channel?It's a strictly non-commercial thing. I'm not a professional Youtuber, or any kind of career person. As of now it's less than a thousand subscribers and relying on ERAs (Extrayoutubular Recommendation Algorithms). I'm also hugely reluctant to editing - if a video needs it, it ends up in a limbo. Great Scott, that's 1.21 jiggabytes of videos in editing! So, I tend to shoot a video using live semi-automatic scene switching in OBS, and if I need to edit anything, I use Shotcut or KDEnlive. The channel runs entirely on free and open source software running under Debian.I'm total crap for promotion or running a business. I Keri on anyway.My Lab:I've had an electronics lab in one form or another for 20 years, starting in the 2000s. It's been evolving with new test gear and tools, though the Keritech era (2020 onwards) saw the biggest progress.Being on a very limited budget, I can't just buy new test gear; I appreciate good quality vintage or second-hand equipment, like a Fluke 179 or Tek 468. It's good enough for the work I do.The 2 year anniversary video:And a little slightly outdated tour of my lab:
Boonton 2510 DC Range Calibrator Repair - Page 1
Forum section: electronics / general

author: TheDefpom
author_rank: Frequent Contributor
timestamp: December 14, 2023, 11:08:28 pm
content: Thought I would post this here as the EPROM data may be of use to someone.I also always add manuals and whatever data I can to my Patreon posts for my videos, so my supporters always get access to everything.
Low Noise 45V-4A Dual Rail Power Supply Using Enhanced Capacitance Multiplier - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: December 08, 2023, 08:13:11 am
content: The core element of any electronic device is the power supply. Any instability or malfunction of the power supply causes the device to malfunction or demonstrate weird behavior. In some sensitive applications, we need a dual voltage-rail power supply to prepare a high current and low noise voltage at the output. In this article/video, I introduced a low-noise AC-to-DC power supply that can handle up to 4A continuously and accept input voltages up to 35V-AC.To design this power supply, I decided to use an enhanced capacitance multiplier circuit. I paid high attention to good grounding, assigned the top layer of the PCB to the ground, and drew power planes instead of tracks to carry high currents. As a result, I could not detect any noise or ripple at the output even at the maximum output current! The PCB board has two layers and to ensure high-quality fabricated boards, I sent the Gerber files to PCBWay.I tested the board for voltage drop, current delivery, and output noise. I used Siglent SDL1020X-E DC Load and Siglent SDS2102X Plus oscilloscope to perform all tests. I’m confident that this design satisfies your needs in many applications.SpecificationsInput Voltage (max): 35V-ACOutput Current: 4A ContinuousOutput Noise/Ripple: Very LowOutput Voltage: 45V-DC (maximum safe, under no load)
Clough42 - Making a Banana Jack Adapter for Siglent Electronic Loads - Page 1
Forum section: electronics / general

author: ledtester
author_rank: Super Contributor
timestamp: September 24, 2023, 05:32:25 am
content: Clough42 goes thrugh the process of making a banana jack adapter for a Siglent electronic load.Attached are some pics of what it looks like.
8-100V to 5V-1A DC to DC Buck Converter using MP9486 - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: August 31, 2023, 07:37:29 am
content: DC-to-DC buck converters are utilized ubiquitously in electronic devices. Three major types of non-isolated DC-to-DC converters are introduced: Buck, Boost, and Buck-Boost. The most frequently employed type is the Buck converter. In this article/video, I introduce a compact buck converter board, capable of accepting input voltages ranging from 8V to 95V and handling 5V-1A at the output.The selected controlling chip is the MP9486. It is a high-frequency and somewhat sensitive controller chip as some users reported encountering instability issues. However, I have applied a few modifications to the circuit and as a result, you can utilize this circuit, PCB, or assembled board without any issues. The circuit offers consistent regulation within the defined input voltage range, effectively managing the maximum output current.For the schematic and PCB design, I utilized Altium Designer 23. I shared the project with my colleague for feedback and edits through Altium 365's secure cloud space. The Octopart component search engine proved invaluable for obtaining component information and generating the Bill of Materials (BOM). To ensure the production of high-quality fabricated boards, I forwarded the Gerber files to PCBWay.I tested the circuit's performance for a range of input voltage, output current, stability, and output noise. This comprehensive testing was conducted using the Siglent SDL1020X-E DC Load, the SDM3045M multimeter, and the SDS2102X Plus oscilloscope.I am confident that this circuit fulfills your requirements for a compact high-voltage buck converter board.
I just found the weirdest AI generated content Youtube channel - Page 1
Forum section: electronics / general

author: tszaboo
author_rank: Super Contributor
timestamp: August 02, 2023, 10:42:52 pm
content: So this guy:https://www.youtube.com/@RoelVandePaar/videosApparently hastwo millionyoutube videos uploaded. He talks at the beginning of the video of some -as the English's call it- bollocks, and then the AI generated content comes in with some cringey music. I'm sure the video titles are coming from Stackoverflow or something. The cannel has 37 million views, so he is probably getting enough to retire. It's simultaneously disturbing and amusing.

author: ataradov
author_rank: Super Contributor
timestamp: August 02, 2023, 10:59:29 pm
content: This is a well known auto generated channel. There are like 5-10 different video intros that are randomly included in the videos.Part of the reason for so many views is its meme status, this channel was brought up by A LOT of popular streamers and YT creators. It comes up all the time in "top 10 strangest YT channels" type of videos.I'm not sure how much organic traction it gets, and the individual video views are pretty low. There are just a lot of them.

author: thm_w
author_rank: Super Contributor
timestamp: August 03, 2023, 09:20:41 pm
content: Yeah in the description he links the stackexchange license.https://meta.stackexchange.com/help/licensingSo it means anyone can take content from there and use it on their site with no attribution whatsoever?

author: Shonky
author_rank: Frequent Contributor
timestamp: August 04, 2023, 01:28:56 am
content: Seems like almost relying on people randomly watching a video to see what it's about more than anything. i.e. unlikely they'll be repeat viewers.Appears to the be the highest uploader by some margin - next is about 1M videos. So 37M views with 2M videos i.e. averaging ~20 views per video. Does that actually produce a reasonable income?And I don't think this is AI at all. Just he has some automation to scrape stack exchange, turn it into a video randomly including some recorded intros and automatically upload it.

author: tszaboo
author_rank: Super Contributor
timestamp: August 04, 2023, 07:57:35 am
content: Probably just people randomly stumbling on the videos. That's what I did anyway. With 2USD CPM he would receive about 70000USD in ad revenue so he might retire if it goes like this in the future.About the AI or not: sure it can be that he shows the two most upvoted reply.
Mr. Carlson's close call with a tube radio - Page 1
Forum section: electronics / general

author: AndyBeez
author_rank: Frequent Contributor
timestamp: July 31, 2023, 08:45:37 pm
content: Not even the big man himself was immune from of the effect ofcardiac conductivity. His tale is one of why you should not trust someone else's interpretation of health and safety and service regulations. There are some very interesting anecdotes in the viewer's comments too.

author: langwadt
author_rank: Super Contributor
timestamp: July 31, 2023, 08:56:51 pm
content: A friend of mine got shock like that debugging, I think a defibrillator, at his work. he told every one went white when he causally mentioned it in the cafeteria a few days later. Apparently standard procedure when something like that happened was hospital for 24h observation because the stress on the heart might make it stop later
433MHz 4-Channels Wireless Switcher Circuit - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: July 31, 2023, 05:46:03 am
content: 433MHz/315MHz remote controls are everywhere around us, used to control devices such as turning ON/OFF the lights or a TV, or in applications such as opening/closing parking or villa entrance, … etc. Such remotes are available in the market in various shapes and sizes; however, most are equipped with four buttons. In this article/video, I introduce a full-featured four channels wireless switcher device that can be paired with the majority of 433MHz or 315MHz wireless remotes in the market. The board can store up to 80 remote control buttons/codes (20 remotes with four buttons) in its EEPROM memory. You can easily record, delete, decode, and assign any individual remote-control button.The board is compact and equipped with a small 2*8-character LCD, enhancing the user experience. Any remote-control button can be assigned to any of the four relays to activate and deactivate the devices. An ATMega8 microcontroller is the heart of the circuit. I used the Arduino IDE to develop the code. The most challenging part of this project was dealing with EEPROM memory. Eventually, I decided to use the structures to tackle it. Powering the board is as simple as connecting a 9V-1A power adapter.For the schematic and PCB design, I utilized Altium Designer 23 and shared the project with my friends for feedback and edits using Altium-365's secure cloud space. The fast component search engine, Octopart, proved invaluable in quickly obtaining component information and generating the Bill of Materials (BOM). To ensure high-quality fabricated boards, I sent the Gerber files to PCBWay. I am confident that this circuit meets your requirements for a compact switcher board.
Jeri Ellsworth's Youtube channel, seems to be beginning to be active again - Page 1
Forum section: electronics / general

author: MK14
author_rank: Super Contributor
timestamp: June 11, 2023, 11:38:30 pm
content: https://www.youtube.com/@jeriellsworth/videosI'm hoping they start doing electronics videos again.

author: SiliconWizard
author_rank: Super Contributor
timestamp: June 12, 2023, 10:07:04 pm
content: Two quick comedy videos to promote their new product, I wouldn't call that being active again.BTW, not sure what the deal with Apple is regarding her product.Anyway, she got really busy with her venture and that's understandable. Happy to see that they finally made it. I wish them success.Not sure she'll be back to making videos as she used to. I think she moved on. We'll see.

author: MK14
author_rank: Super Contributor
timestamp: June 12, 2023, 10:11:37 pm
content: Quote from: SiliconWizard on June 12, 2023, 10:07:04 pmThere are other signs, they have started (or might) start back up.E.g. They appeared in the following recent Electronics and related technical Youtubers, big meetup, about a month ago. So, I assume they wouldn't have done stuff like that, if they don't still see themselves as part of the Electronics Youtube community, anymore. See here:

author: Psi
author_rank: Super Contributor
timestamp: July 22, 2023, 10:39:59 am
content: Good presentation by Jeri about the jobs she's had.
Disassembly / re-assembly of Aliexpress Kelvin probes - Page 1
Forum section: electronics / general

author: ledtester
author_rank: Super Contributor
timestamp: July 10, 2023, 01:25:18 pm
content: Steve's Trivia posted a useful video on how to disassemble / reassemble the ubiquitous kelvin clips you find on aliexpress/ebay. Useful if you want to change out the cabling or fix the strain relief...https://youtu.be/fiTKWrb9QqY
220VAC to 8VDC 24W Flyback Switching Power Supply - Page 1
Forum section: electronics / general

author: hesam.moshiri
author_rank: Regular Contributor
timestamp: June 30, 2023, 06:27:46 am
content: The most important part of any electronic device is the power supply section. Any instability or malfunction in this part causes the device to stop its operation or show weird behavior. In this article/video, I introduced an AC to DC Flyback Switching power supply that converts 220V-AC to 8V-DC, which can be used in a variety of applications. The 8V selection for the output makes this supply friendly for any type of linear regulator.The maximum power delivery of this power supply is 24W, which means it can handle 3A at 8V output. The controller chip is DK125, which does not need any external supply, a startup resistor, or even an auxiliary winding on the transformer. The transformer's ferrite core is RM8, which is different from most supplies that use EE or EI cores. A small potentiometer allows you to adjust the output voltage and set it to 7.5 to 8V.For the schematic and PCB design, I utilized Altium Designer 23 and shared the project with my friends for feedback and updates using Altium-365. The fast component search engine, Octopart, proved invaluable in quickly obtaining component information and generating the Bill of Materials (BOM). To ensure high-quality fabricated boards, I sent the Gerber files to PCBWay.I tested the board for voltage drop and current delivery, output noise, and load step response. I used the Siglent SDL1020X-E DC Load, Siglent SDS2102X Plus oscilloscope, Siglent SDM3045X multimeter, and Siglent CP4020 current probe to perform all tests. I am confident that this circuit will meet your requirements for a compact and efficient power supply, providing reliable performance on your electronics bench.
New YouTube collaboration channel "The Electronics Channel" - Page 1
Forum section: electronics / general

author: Cliff Matthews
author_rank: Unknown
timestamp: June 29, 2023, 06:36:00 pm
content: AnnouncementThey'll have a bi-weekly stream starting July 2nd Sunday's from 17:00 - 19:00 London Time here:https://www.youtube.com/@theelectronicschannel/streams
Hallicrafters SX-25 Youtube Videos, It's been great help!  - Page 1
Forum section: electronics / general

author: Peithojr
author_rank: Contributor
timestamp: December 26, 2023, 12:02:53 am
content: I found these videos on YouTube and its been a great help with myHallicrafters!!Hallicrafters SX-25 Super Defianthttps://youtu.be/_ldhHmzeqx0https://youtu.be/zVwPHWc0Zlchttps://youtu.be/1Y6z777lQcMhttps://youtu.be/SiKorZCIcDshttps://youtu.be/OFLJ6VfzFmohttps://youtu.be/JWlIdAcTbtEhttps://youtu.be/2qDs7tyUZmQhttps://youtu.be/R0vrzpXwijkNow that i think about it, looks like a lot of work for me

author: Peithojr
author_rank: Contributor
timestamp: January 18, 2024, 05:40:22 pm
content: Hello folks!Here is a cool follow up video, I happen to have the same receiver!https://youtu.be/RGpZPW6P7hg

author: Peithojr
author_rank: Contributor
timestamp: January 21, 2024, 05:49:38 am
content: This is cool!https://youtu.be/nddyc8FaDLc