[GreenKeys] Relay suggestions

Eric epvgk at limpoc.com
Sat Jun 22 18:32:07 EDT 2019


Haha that was me!

On June 22, 2019 1:30:22 PM PDT, Jim Haynes <jhhaynes at earthlink.net> wrote:
>Someone suggested an optocoupler, and probably a better choice is a
>solid state relay with optical isolation.  Attached is a document on
>the
>subject by somebody.  In addition to the relay you'll want to put in
>something like back-to-back Zener diodes or an R-C snubber to limit
>the peak voltage on loop opening to something that won't blow the
>relay.
>
>Jim W6JVE
>
> 	---
>
> 	"Ya can argue all ya wanna, but it's dif'rent than it was."
> 	"No it ain't! No it ain't!  But ya gotta know the territory."
> 		Meredith Willson, The Music Man


More information about the GreenKeys mailing list