Greetings,
I recently built the LED Tester on a breadboard.
As I built the circuit, I drew a few diagrams.
The diagrams are organized in an HTML page that can be viewed with a web browser.
Bruce W8BH, put my notes up at his GitHub account:
The latest documentation for the W8BH LED tester is now available.
This is a fun project that results in a very useful piece of test equipment.
A while back I bought a few Grab Bags of LEDs without any documentation.
Also, this will be a helpful tool for figuring out what all those loose LEDs in the junk box are.
Hopefully helpful.
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Regards,
Ken, KM4NFQ "Not Fully Qualified"
/g/w8bhMorseTutor
Ken KM4NFQ