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[Amps] RE: Problems with Heath SB-220

To: <amps@contesting.com>
Subject: [Amps] RE: Problems with Heath SB-220
From: Kim.Elmore at noaa.gov (Kim Elmore)
Date: Wed Jan 22 17:45:50 2003
If I recall, it's pin 7 of the ACC plug, but it's in the manual, regardless.

Kim Elmore, N5OP

At 05:24 PM 1/22/2003 -0500, you wrote:
>At 02:06 PM 1/22/03 -0800, Dan wrote:
>>If the relay is stuck shut, you may
>>be able to find a +12v on xmit signal somewhere on the back of the 930 to
>>operated the power xstr
>
>
>This is good advice -- there is such a signal and it leads the production 
>of RF by a few milliseconds -- I forget the exact figure but K9MA told me 
>about it.  I use +12V to switch an FET that switches the vacuum relay QSK 
>in my modified SB-220 -- and so far so good.
>
>73, Pete N4ZR
>The World HF Contest Station Database has just been updated.
>Are you current? www.pvrc.org/wcsd/wcsdsearch.htm
>
>
>
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                           Kim Elmore, Ph.D.
                        University of Oklahoma
         Cooperative Institute for Mesoscale Meteorological Studies
"All of weather is divided into three parts: Yes, No, and Maybe. The
greatest of these is Maybe" The original Latin appears to be garbled.

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