View Single Post
Old 28th Oct 2020, 10:26 pm   #26
Bazz4CQJ
Dekatron
 
Bazz4CQJ's Avatar
 
Join Date: Apr 2009
Location: Oxfordshire, UK.
Posts: 4,934
Default Re: 12VDC power switching circuit

Interesting, but simplicity is the keyword here. I have this feeling that one transistor and a relay could be made to do this. I vaguely recall making a unit which provided variable delay windscreen wiper control back in the 70's, when single speed wipers was standard. Unijunction transistor?

Two transistor in a multivibrator seems OK; I'm waiting for the solenoids to arrive.

B
__________________
Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch.
Bazz4CQJ is offline