[AMRadio] SX-42 Question


Bob Peters rwpeters at swbell.net
Mon Sep 17 22:04:45 EDT 2007


Thank you John...

-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of W4AWM at aol.com
Sent: Monday, September 17, 2007 5:42 PM
To: amradio at mailman.qth.net
Subject: Re: [AMRadio] SX-42 Question


In a message dated 9/17/2007 6:10:43 PM Eastern Daylight Time, 
beethoven1 at sbcglobal.net writes:

> Anyone know were the mute contacts are on the SX42

The muting contacts are Pins 5 and 8 on the octal plug (SO-1) on the
rear 
chassis apron of the SX-42. There is probably a jumper between those
pins now. 
Operation of the SEND/RECEIVE switch on the front panel removes the
center tap 
of the power transformer HV winding, effectively removing the HV from
the 
receiver.  When using a remote switch or relay, place the SEND/RECEIVE
switch in 
the SEND position.

73,  

John,  W4AWM


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