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EMI Filter PCB
avrcandies wrote:I wonder, offhand, how far 15 kV can jump in air it is 3 kV / mm, so 5 mm.
Saturday, 18 January 2020 - 18:13
I have a Chinese AVRISP mkII that does power the board.  Very strange.  It shouldn't, but it does.
Saturday, 11 January 2020 - 17:57
frozen batteries
clawson wrote:In fact this is the first time in 56 years I can remember ut being suggested. The idea is to increase the shelf life by slowing down whatever chemistry contributes...
Sunday, 5 January 2020 - 19:24
Wire Wrap Wire?
Hey JC, They did a sphincterotomy the first ERCP, and ballooned it the second and third times, so it is always open.  This time they didn't need to balloon it because it was...
Sunday, 1 December 2019 - 04:18
Wire Wrap Wire?
Hey Doc, going further off topic, I had my 4th ERCP last week.  In addition to chronic back pain I get attacks of pancreatitis when the sludge my liver makes (lost my gall...
Sunday, 1 December 2019 - 00:10
Wire Wrap Wire?
DocJC wrote:  I like the 24g telephone wire that comes in a bunch of different colors with different color stripes That's my favorite.   When the Police and Fire...
Saturday, 30 November 2019 - 23:52
The Art Of Electronics, 3rd ed; "The X-Chapters"
I have never heard it called anything but Horowitz and Hill.  Never by title.  Same with Morse and Feshbach.  I have a first edition of H & H.
Saturday, 30 November 2019 - 18:39
Wire Wrap Wire?
david.prentice wrote:You have not witnessed the smell !! I guess I would have to bring out my fume fan, which I never use.  I like the smell of rosin flux.  I like the...
Saturday, 30 November 2019 - 18:27
Wire Wrap Wire?
That wire looks like the flux is in the insulation, so you just solder it???.  What a good idea.  
Saturday, 30 November 2019 - 17:33
Need help with I2C (Repeated Start)
Simonetta wrote:A repeated start is the same as a STOP followed by a START when there is only one Master on the I2C system. Peter Fleury's library has the repeated start just...
Wednesday, 20 November 2019 - 14:56
Looking for LED Driver
Jim, I use a Ti TLC5940, which has 16 channels and is good to 120 mA per channel.  But the clock and management are all done by the MCU.  A little easier chip to...
Tuesday, 12 November 2019 - 18:58
Single Diode Temperature Sensor with Arduino ICU timing reverse-bias leakage
awneil wrote:and they come fully characterised and calibrated. Not necessarily.  I have been playing around with a couple of ams 7265x 18 channel 20 nm FWHM photo...
Wednesday, 6 November 2019 - 00:59