[CQ-Contest] SB-220 Switching help

Gary J. Ferdinand W2CS at bellsouth.net
Mon Jan 28 17:42:07 EST 2002


Better yet, install Rich Measures' QSK mod and eliminate that relay
entirely.

Gary W2CS



> -----Original Message-----
> From: owner-cq-contest at contesting.com
> [mailto:owner-cq-contest at contesting.com]On Behalf Of Scott Ellington
> Sent: Monday, January 28, 2002 1:00 PM
> To: cq-contest at contesting.com
> Subject: Re: [CQ-Contest] SB-220 Switching help
>
>
>
> Beware!!  The stock SB-220 does NOT have a catch diode across the
> relay coil.
> As a result, it can fry the switching transistor or relay in the
> transceiver.
> Make sure the diode is in place before hooking it up.
>
> 73,
>
> Scott   K9MA
>
>
>
> --
> Scott Ellington
> Madison, Wisconsin   USA
>
> sdelling at facstaff.wisc.edu
>
>
> --
> CQ-Contest on WWW: http://lists.contesting.com/_cq-contest/
> Administrative requests: cq-contest-REQUEST at contesting.com
>


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