[ARC5] Questions that need answers

[jcoward5452 at aol.com]

Thanks Gordon,but I was not the contributor of that piece of 
information.
;-)  Jay KE6PPF

-----Original Message-----
From: gewhite at crosslink.net
To: scr287 at sbcglobal.net
Cc: arc5 at mailman.qth.net
Sent: Fri, 10 Nov 2006 5:16 PM
Subject: Re: [ARC5] Questions that need answers

Jay is correct. The jumper in the adapter in the receivers is in the 
low-voltage line. Having said that, There are different connections in 
the front adapter area. While the RAT, RAV, ARA, SCR-274-N and early 
AN/ARC-5 receivers seem to be the same, with the following connections: 
 
1 - sensitivity control 
2 - ground 
3 - blank 
4 - tel or audio output to instrument landing equipment 
5 - cw osc. shutoff 
6 - low voltage to filaments and dynamotor 
7 - low voltage from supply 
8 - B+ voltage 
 
  my experience is that some of the Western Electric SCR-274-N 
receivers did not have all the connections in the adapter, in fact did 
not have all the pins. 
 
  The late AN/ARC-5 (R-111 and R-113) receivers had no connections to 
pins 3, 4, 5, and 8. 
 
- Gordon 
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