How to hack a calculator into a test system event counter.
Previous video on contact debouncing and using a universal counter: https://youtu.be/Nj-Q8FQxHhU
Forum: http://www.eevblog.com/forum/blog/eevblog-962-hacking-a-calculator-into-a-counter/
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A little behind the scenes packing and shipping the uCurrent parts off to the assembler.
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Sagan & Dave take a look at a couple of Tektronix 2465 analog oscilloscopes, and compare the march of technology.
Thanks to Eric Wasatonic:
http://www.youtube.com/user/ElectronicTonic156
Tour of the test equipment storage room: https://www.youtube.com/watch?v=aOjgVaYOkQ0
Forum: http://www.eevblog.com/forum/blog/eevblog-695-mailbag-tektronix-2465-analog-oscilloscope/
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How do LED ceiling panel LED lights work?
Everything you need to know about LED ceiling panel lighting, with Doug Ford.
And a bonus tutorial on underwater LED lighting.
http://www.dfad.com.au
Two more parts to this LED lighting installation coming soon...
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A quick followup to the piezoelectric oscilloscope and vibration issue shown previously. This time talking about probe loading and probe microphonics.
Kemet Clip On Lead Frame (CoLF) Capacitors:
http://www.kemet.com/Lists/TechnicalArticles/Attachments/62/2007%20CARTS%20-%20Reduced%20Microphonics%20and%20Sound%20Emissions.pdf
https://www.youtube.com/watch?v=WE9pYUVvr00
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Dave programs a PIC 24F chip on his uCalc with the new official AVR Dragon firmware.
Part of the new Microchip-Atmel tool collaboration agreement.
Also, news on the new Microchip PICkit 4 which will have official support for all Atmel AVR parts.
Forum Topic: http://www.eevblog.com/forum/blog/eevblog-448-new-pickit-4-avr-dragon
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Doug Ford, former head designer at Rode Microphones explains 48V phantom powering of microphones and how it works.
There is a ton of stuff here:
Electrostatic and electromagnetic noise, differential amplifiers, common mode noise, transformer magnetisation current, JFET differential driver circuits, balanced impedances, phase splitters, miller capacitance and how it matters, and he explains how the Schoeps amplifier topology works.
Forum here: http://www.eevblog.com/forum/blog/eevblog-616-how-microphone-phantom-powering-works/
All the videos in this series with Doug: http://www.youtube.com/playlist?list=PLvOlSehNtuHv98KUcud260yJBRQngBKiw
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