Reply to "18 Volt AC Transformer power through 12V DC automotive switches"

penn stationOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Well, I never thought this could get so complicated. It is humous and frustrating at the same time.

I searched for the Calterm 40393 part and this plus several older forum threads came up with essentially the same discussion and same posters. I could not find a datasheet but the sticker in CJACK's photo shows the circuit and should work as I described.

Next I did another search for switches like those in Robert's photo. I looked at Mouser, Digi-Key, Newark, and Jameco. All the SPST switches were like my diagram or an isolated LED. All the two pole switches had four terminals and could be wired similar to the SPST.

I am mystified. I guess I am stumped without knowing the exact switch John is using.

Hey John - Upstate New York is north of Westchester, right? I am from LI but went to college in Potsdam - some of my classmates considered Upstate to be north of Syracuse.

Cam

C&K

Cherry

Multicomp

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