G
[email protected]
- Jan 1, 1970
- 0
A google search shows this topic comes up repeatedly. The previous
posts are all over my head. I would prefer to find something off the
shelf, but have had no luck. At one time you could buy a power strip
that had one socket that would detect current flow and switch on the
other sockets. I took one a part many years ago and I recall it looked
real simnple. I can not find one of these any longer. I want to plug
in a vacuum and a tool (sander, router, bandsaw) and have the vacuum
come on automatically when I switch on the tool. Fein makes a vacuum
that does this but it costs $300!
I found a circuit on the web:
http://ourworld.compuserve.com/homepages/Bill_Bowden/page8.htm#aclatch.gif
It looks to me like this might do what I need, except I'm confused
about how the relay coil is powered. Do I need to supply the 12VDC
separately or does it come from the magnetic pickup?
Also, is there a simpler circuit to do what I need?
Thanks,
Mark
posts are all over my head. I would prefer to find something off the
shelf, but have had no luck. At one time you could buy a power strip
that had one socket that would detect current flow and switch on the
other sockets. I took one a part many years ago and I recall it looked
real simnple. I can not find one of these any longer. I want to plug
in a vacuum and a tool (sander, router, bandsaw) and have the vacuum
come on automatically when I switch on the tool. Fein makes a vacuum
that does this but it costs $300!
I found a circuit on the web:
http://ourworld.compuserve.com/homepages/Bill_Bowden/page8.htm#aclatch.gif
It looks to me like this might do what I need, except I'm confused
about how the relay coil is powered. Do I need to supply the 12VDC
separately or does it come from the magnetic pickup?
Also, is there a simpler circuit to do what I need?
Thanks,
Mark