Skip to main content

Reply to "Semaphore and 555 Timer Circuit"

Sounds great Tom, figured you'd track it down.  the old CMOS parts were pretty static sensitive, so you may have zapped in in handling.  Thankfully, most of the current generation parts are actually pretty robust, and I rarely see that kind of failure anymore.

cjack posted:
gunrunnerjohn posted:

More current tends to localize what is drawing all the current.

Reminds me of that diagnostic instrument that measured the field generated by a strong current on a PCB trace. A clever way to localize a fault. Can't think of the name of it...

That would be an IR thermometer, just go around until you find the hot trace.

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
×