Hi folks,
I posted awhile back about having trouble finding what was wrong with a diversion load controller that I had built. Several people suggested the fault was the 555 timer. Spent hours trying to get it working.
Well I found this little device that you can build in just a few minutes that will test the 555 timer and I must say it really works great.
I had a few 555's lying around and it sure saved me alot of time figuring out the good ones from the bad ones.
Here's the link http:/www.uoguelph.ca/~antoon/circ/555test.htm
Cheer's
John E Cox
Ottawa, Canada