> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
> Behalf Of Rich
> Sent: Monday, January 30, 2006 12:53 PM
> To: Amps
> Subject: Re: [Amps] AC to DC
>
> Message: 1
> Date: Sun, 29 Jan 2006 17:46:58 -0500
> From: John Popelish <jpopelish@rica.net>
> Subject: Re: [Amps] AC to DC
> To: Amps@contesting.com
> Gary Schafer wrote:
>
> > Yes, but my point is that an AC relay operated on DC with the DC
> > voltage the same as the AC voltage rating, the relay may overheat.
>
> Sorry, I missed what you you were implying. Of course, any AC relay
> will pull in with a DC voltage lower than its rated AC voltage, and
> will almost certainly overheat if operated with DC voltage equal to
> its rated AC voltage.
>
> Rich ,kd0zz here , I asked the original question. I have limited cash
> amount and trying to build an amp with what I have on hand. I have a
> several Potter/Brumfield and other brands DPDT 10amp relays with 120v ac
> coil, most octal base, some lugs.
> When used in the R/F input/output my thought was that AC coil might
> induce hum and could these be used at a different DC voltage.
> Making a DC supply from stock on hand would be free, buying new relays
> is not.
>
> Thanks for any input as some already have , sorry for the confusion.
>
> Rich , kd0zz
I wouldn't worry about any hum. The AC voltage will be fine to operate the
relays. If you do want to run them on DC advice has been given to do that.
73
Gary K4FMX
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