[BC] Ambassador, Exceutive, President, Executive consoles

[dhultsman5@aol.com]

Those monitor amps were junk.  After repairing them in an AMbassador, President, Diplomat and Executive I replaced them with DYNAKIT Stereo 120's.  As I recall we muted the inputs.  I don't recall that many problems after getting rid of those amplifiers.
 
When WRR purchased their Diplomat for AM,  the first thing I heard was the distortion on the Control room mikes.  After carefully checking it out,  the clipping ocurred on the 2N1414 first stage transistor in the mic pre-amp.  To solve the problem I bypassed the solid state pre-amp with a Gates type 5530 amplifier using 6267's and a 12AU7 and the jock were happy.  Additional checking found that the same stage in the front end of the 5700 program amps would clip on audio peaks.  As I recall I changed the bias on that stage.  We added another stage on the microphone pre-amp to decrease the gain in each stage.  Then when we bought an Executive for the FM, my plan was to use a tube type mike pre-amp in our FM but Harris had changed to the 2n1307's which were much better and the clipping was not a problem.  u 
Dave Hultsman
Birmingham, AL
Tel Toll Free (888) 822-1078
Fax (205) 822-6441
 
 
-----Original Message-----
From: brew at theMode.com
To: broadcast at radiolists.net
Sent: Fri, 6 Apr 2007 5:33 AM
Subject: Re: [BC] XT and RCF 1


Dana Puopolo wrote: 
 
> Didn't the Diplomat have an external meter that sat on the top ridge of the 
> console? 
 
That was the President. I spent a few years (1970-1972) behind one at 
WJJZ, Mount Holly, NJ - a 5 kW daytimer on 1460.
 
I always wished we had the better looking Diplomat instead of the 
President. I liked the way the Diplomat VU meters were actually on 
the front of the console instead of perched up on the top ridge. 
However, they could be slid back and forth or removed altogether (and 
placed where?). 
 
All of the Presidents I knew of had blown monitor amps which had been 
replaced with an outboard amp. At WJJZ we had a Bogen off to the side 
to drive the control room monitor speaker. 
 
There are pictures of the Gates console line on Barry's website: 
 
http://www.oldradio.com/archives/hardware/gates-st.htm 
 
brew - formerly 'Hitman Bruce McCray' and now 
Bruce Schiller - CBS-TV NY Master Control Maintenance and WA2ZST 
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