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Formed PCB and fan I had a bad fan & took it apart, thinking I might claim the ring magnet (it's pretty strong). I was impressed at the complexity of the assembly.... |
Friday, 1 January 2021 - 19:24 |
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LASCR anyone? The recent posts about phototransistors got me remembering about working with LASCR's, maybe 30 years ago. They are Light Activated SCR's & I used to make... |
Sunday, 8 November 2020 - 05:47 |
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Digikey---bad times?? I was ordering parts on Digikey & saw some new checkbox about marketplace items ...??? I asked the Digikey guy what that meant...he told me other people can now sell... |
Thursday, 1 October 2020 - 17:35 |
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Finding proper names This is probably very simple, but seems rather perplexing. I have an old mega asm2 program that I'm moving over asap to the mega4808. I can't find the bit... |
Wednesday, 22 July 2020 - 05:33 |
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Magic Wires--don't be fooled I set down a magnet on my table. When I picked it up, a bunch of jumper wires came with it...Strange, I thought. Turns out about half the assorted ones I had,... |
Monday, 20 July 2020 - 19:01 |
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mega4808 clock source I see the mega4808 does not allow connection of a main xtal (other than a 32KHz low freq xtal osc). so if i want an oddball freq (it is going to be 10.55 ... |
Monday, 20 July 2020 - 00:48 |
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Not a bad little scope For the money 1 GS/sec, 100 MHz BW ...could be handy...has limited voltage ranges & waveform samples...but the price is right. Wonder if it is any good?... |
Tuesday, 14 July 2020 - 01:11 |
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Hijacked Terminology? I noticed the DS2502 datasheet says: 1k-Bit EPROM with Page-Level Write Protection and Guaranteed Unique 64-Bit ROM ID Chip for Absolute Traceability. However... |
Friday, 26 June 2020 - 01:01 |
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Junk or incompetence? Maybe this is new tool is good or "revolutionary"...or junk ...soldering needs to involve heating whatever you want to solder, not just slobbering molten solder onto... |
Sunday, 8 March 2020 - 00:50 |
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Free software was $$$$ Many years ago (>25), I used Microcap circuit drawing/simulation package extensively (on a '486 PC, with an early version of Windows) ...our engineering center paid... |
Thursday, 2 January 2020 - 08:59 |
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Connector conspiracy The fine RCA plug & jack has been around for 60+ years...you can still use those cables & not need 20 different types/sizes of "RCA" cables USB & HDMI have... |
Thursday, 5 December 2019 - 22:03 |
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Now I've seen some batteries My wife told me she got us some rechargeable batteries...I took a look , they were AA....Ok, I said, but you didn't get a charger!!! She said but they came with a... |
Friday, 9 August 2019 - 05:14 |