EEVblog #940 - Mailbag - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: November 08, 2016, 02:09:24 am
content: More Mailbag MacarismSPOILERS:Namco Wireless TalkAid speech synthesisierChart of Electromagnetic Radiations Poster:https://www.flickr.com/photos/llnl/9403051123/sizes/l/Dell & Wun Hung Lo tabletsCanon Notejet III CX notebook with bubblejet printer!HD Quad helical silver printed helical antennahttp://www.hd-quad.com/GSM RF amplifier teardownOld Omron PLC teardownOld earth resistance meter teardownHanna Instruments pH meter and conductivity meter teardowns

author: SAI_Peregrinus
author_rank: Contributor
timestamp: November 08, 2016, 04:11:12 am
content: Why do a nixie clock if you can do a nixie display for a 7 1/2 digit multimeter!?

author: Tom45
author_rank: Frequent Contributor
timestamp: November 08, 2016, 06:02:19 am
content: The Chart of Electromagnetic Radiations is copyright 1944 but was first released in 1936. See the story of the chart and Dwight Barr, the man behind it at:http://physicsbuzz.physicscentral.com/2013/09/making-chart-of-electromagnetic.htmlA better quality copy can be found at:https://drive.google.com/file/d/0B8efip5URbLaM0UwTjV0VlYxdlU/view

author: Seamoss
author_rank: Newbie
timestamp: November 08, 2016, 06:31:30 am
content: Hey Dave!Who did you go through to print that electromagnetic spectrum poster?I'm considering ordering one as a Christmas gift for my brother.

author: sbprojects
author_rank: Contributor
timestamp: November 08, 2016, 07:45:11 am
content: The two signal paths in the GSM repeater are for the Tx and Rx paths, which are 25 MHz apart (off the top of my head). It needs to be a bi-directional repeater to be useful.

author: MattSR
author_rank: Regular Contributor
timestamp: November 08, 2016, 07:52:42 am
content: +1 - who is your printer? Officeworks does A0 for $33 on 160gsm paper

author: Halcyon
author_rank: Unknown
timestamp: November 08, 2016, 08:10:09 am
content: Hi Dave, your last mailbag item seems to have been from a Finn. The Christmas card "Hyvää Joulua" translates roughly to "Good/Merry Christmas".

author: LazyJack
author_rank: Frequent Contributor
timestamp: November 08, 2016, 08:32:26 am
content: For the earth resistance mater: Norma is the brand, I think it is Austrian. They have some really fine instruments. Erdungsmesser is German for Earthing -meter.

author: jonovid
author_rank: Super Contributor
timestamp: November 08, 2016, 08:36:32 am
content: Quoteuse nixie display as part of a multi function rack mounted display unit. use as a movie set backdrop prop in you videos, add or change the racks orchange display drivers. whatever you want, a jumbo multimeter to use as an education tool . display unit in one rack. micro in the next rack.lots of banana plugs and sockets. or change it to a backdrop prop clock if you need one.

author: RaubSauger
author_rank: Newbie
timestamp: November 08, 2016, 02:47:39 pm
content: Did I miss the link to the HV Nixie Supply? Does anyone knows where I could buy one? Don't really trust myself designing HV PSUs..

author: Cervisia
author_rank: Regular Contributor
timestamp: November 08, 2016, 02:49:07 pm
content: To circumvent the Windows 95 password dialog, just click "Cancel". Or you could have created a new account by entering a new user name.(Windows 95 had no security; the password is important only to access network servers.)But I guess the thing has already been taken apart by now …

author: BlinkY
author_rank: Contributor
timestamp: November 08, 2016, 05:16:23 pm
content: @EEVBlogOne of the comments on the video had a good idea, I thought:After researching, it appears within Google's API is the ability to gather one's subscriber count:http://stackoverflow.com/questions/30723866/youtube-subscriber-count-with-youtube-data-api-v3Could Dave II have a go, at least?

author: SeanB
author_rank: Super Contributor
timestamp: November 08, 2016, 06:35:06 pm
content: Ordered a A2 canvas print of it today, will collect the unframed print Friday afternoon. R240 ( around $20) at my local Postnet.

author: broz
author_rank: Regular Contributor
timestamp: November 08, 2016, 06:49:49 pm
content: Hey Dave, yes they do still make laptops with the nipple. This is my current machine and I have the trackpad disabled so the nipple is all that can be used. Whenever my friends use it, they get so confused!

author: CJay
author_rank: Super Contributor
timestamp: November 08, 2016, 06:53:27 pm
content: Well coincidentally, I was digging around in a flea market and found one of those RF repeaters for £3, they're a cell phone repeater desgined to retransmit signals inside a building and vice-versa.I thought £3 was pretty good for a box filled with MMICs so I was about to ask a queston in the RF section about it.Mine has a few gaps filled in and it's also got two power stages:

author: CJay
author_rank: Super Contributor
timestamp: November 08, 2016, 06:57:46 pm
content: Quote from: broz on November 08, 2016, 06:49:49 pmBeat me to it, I work with current model machines that are still avaialble with the nipple but the most common ones are the Lenovos

author: PA0PBZ
author_rank: Super Contributor
timestamp: November 08, 2016, 07:41:18 pm
content: Anyone else noticed something weird with the capacitors?And Ubon the earth resistance meter is most likely the battery voltage.

author: CJay
author_rank: Super Contributor
timestamp: November 08, 2016, 07:53:18 pm
content: Hah, yes.They seem to be correct on mine.

author: SgtTech
author_rank: Contributor
timestamp: November 08, 2016, 08:14:06 pm
content: Why not build some form of counter with your Nixies connected to your Raspberry Pi project

author: Barny
author_rank: Frequent Contributor
timestamp: November 09, 2016, 08:38:19 am
content: Quote from: PA0PBZ on November 08, 2016, 07:41:18 pmDo you talk about the resistor - capacitors?

author: PA0PBZ
author_rank: Super Contributor
timestamp: November 09, 2016, 08:49:02 am
content: Quote from: Barny on November 09, 2016, 08:38:19 amYes, a lot of capacitors are marked Rxx.

author: SL4P
author_rank: Super Contributor
timestamp: November 10, 2016, 09:09:18 pm
content: That heatsink shown at the end.... probably for those integrated audio amplifier chips that sit upright from the pcb (too katy to look for the case designator).

author: f4eru
author_rank: Super Contributor
timestamp: November 10, 2016, 10:09:05 pm
content: Hello,The bodge looking resistor and lifted pin in the PH-meter or conductivity meter is not a bodge !it's designes so as to avoid current leaks through isolation material. The PCB, IC socket are leaky at the pA level, especially with some contamination

author: NiHaoMike
author_rank: Super Contributor
timestamp: November 11, 2016, 04:21:01 am
content: That old Pyle tablet looks a lot like a $40 no name tablet I got at one point, inside and out. (Which I later put to use mining altcoins, just barely paying for itself before the cheap MLC flash gave up...)That joystick mouse thing is still very common on Lenovo laptops.

author: coppice
author_rank: Super Contributor
timestamp: November 11, 2016, 04:23:23 am
content: Quote from: NiHaoMike on November 11, 2016, 04:21:01 amLenovo and Dell laptops.

author: qwertz
author_rank: Newbie
timestamp: November 13, 2016, 09:10:30 pm
content: Quote from: EEVblog on November 08, 2016, 02:09:24 amThere is a "little"failure in this chart... It is written that a light year is 9.5x10^17sec

author: Brumby
author_rank: Unknown
timestamp: November 14, 2016, 03:00:52 am
content: Oh dear, yes.

author: alho
author_rank: Contributor
timestamp: November 14, 2016, 05:37:14 pm
content: Quote from: f4eru on November 10, 2016, 10:09:05 pmThis is why I don't like 2min teardows. These meters seemed simple enough for more details with out it being too much work. But instead it was just "theres some analogy stuff and chips". What was the point? To show a glimpse of a PCB?