Latching vs. non-latching relay...

Started by wokeupfalling, July 19, 2006, 02:18:29 PM

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wokeupfalling

When switching an audio signal, is a "non-latching" relay more prone to noise from the coil?  Is noise any less likely in a latching relay - or does it even make a difference?

Thanks!!


R.G.

I don't think it matters much. Both latching and non-latching have full-voltage switching across the coil. Latching does it twice as often, but you can make one of these be very slow.

In either case, if the coil is not well-isolated from the signal contacts, you will have to slow down the coil voltage change to below the rate that couples into the signal path easily to keep noise down.
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

mac dillard

I tried to use a solid state non latching relay to remotely switch a Real McTube and could not make it work..Lots of noise.