i have been trying to find a circuit that i can use when i turn on a power
tool, my shop vac will kick on and off with the tool. i know there are some
out there, however i have found none. does anyony here have a circuit
or know where i can find one?
TKS bengi

 

Hello,

The circuit you are looking for is called a "power slave".
It is a circuit that looks if the "master" is switched on,
if so the "slave" will also be turned on.

Greetings,
Bertus

 

http://forum.allaboutcircuits.com/showpost.php?p=58447&postcount=6 One I built many years ago, and is still running. Not all the circuits details, but the important stuff. Recently saw a commercial unit with my delayed start/delayed stop...doubt that it was a coincidental independent creation.

I also designed in a knee switch and a remote start/stop pendent.

Ken