Hi Alec_t,

I found an article on Wikipedia about flyback diodes, which is what came up for a search for "reverse-bias diode snubber," so I assume this is the same thing. The circuit diagram shows the diode in parallel with the L inductance and R inductor windings. Do these two together represent the solenoid coil? (If my understanding of L is correct, it's not a physical component, but rather an effect of the switching.)

https://en.wikipedia.org/wiki/Flyback_diode

A reverse-biased diode should suffice.

 

For a circuit like that, use a double-pole relay so the load contacts are completely independent of the oscillator contacts.

Note that this circuit has a very asymmetrical output. The relay coil is energized for a much longer time period than it is de-energized.

ak

 

I've got a DPDT relay so I should be good there. Thanks!

For a circuit like that, use a double-pole relay so the load contacts are completely independent of the oscillator contacts.

Note that this circuit has a very asymmetrical output. The relay coil is energized for a much longer time period than it is de-energized.

ak