I need help finding a post that showed how to build a resistor test box for LEDs. I did a search and couldn't find it. Also, I'm not sure it was on this forum, but I hope the collective forums brain power can help me find it.
The post I'm looking for is NOT Peteski's "Build your own (cheap) LED tester" or DKS' "LED/Small Motor Tester/Evaluator"
The one I'm looking for used a rotary switch connected to various resistors in a project box with Radio Shack binding posts to connect power and LEDs. The writer also posted two home drawings of resistors values to use around the rotary switch as well as a wiring schematic.
Does anyone the discussion I looking for?