[TMC] TMC Model RTC Remote Control Amplifier

[john poulton]

Bruce, Robert, and the group:

I responded to Bruce separately.. his construction of a brand new RTC from TMC drawings is
the stuff of legend.. :)

So, good news and bad news on the RTC manual.  I *do* actually have one on hand from the
factory manual stash (the good news).  The bad news:  it's in Spanish, and that's why it didn't
get scanned the first time around.  I just had a look at it, the schematics and parts lists are
in English, and the Spanish isn't really that hard to figure out.

It's on my pile of things to scan and add to the website.

The simplified schematics in the RTC manual confirm that the unit could be used to generate
modulated CW (MCW), or it could be used as a microphone preamp, producing 600-ohm line
output in both cases.

73, John K4OZY


On Dec 15, 2012, at 1:48 PM, WA5CAB at cs.com wrote:

> John,
> 
> Thanks.  A Google search turned up an undated TMC line catalog that shows it and also says it could be used to produce MCW with the GPT-750D-2.  And a Bulletin 227 (also on your site) on the GPT-750 that implies it might have had other functions as well.  I found Bulletin 183 on your site.  
> 
> In a message dated 12/15/2012 12:26:34 PM Central Standard Time, jp at cs.unc.edu writes: 
>> The RTC (Remote Transmitter Controller) was indeed used with the GPT-750, but only the "B" version,   
>> of course, as it's intended to operate with the RTM modulator.  There are many photos of it on 
>> 
>> http://www.tmchistory.org
>> 
>> Oddly, there's no manual.  I'll see if I somehow overlooked the RTC manual, and try to get it
>> online in the next week or so.  It doesn't appear in the GPT-750B-2 manual, but may be described
>> in one of the other '750 manuals.
>> 
>> I was lucky enough (actually, VERY lucky) to have found one of these in great condition
>> on ebay.  It was listed in a completely inappropriate way, but I managed to stumble on it
>> quite by accident.  My unit is not in a cabinet, and it has handles on the front panel, so was
>> clearly intended for rack mounting.  This is the only one of these things I've ever seen in 
>> the flesh, so to speak.
>> 
>> 73, John K4OZY
>> 
>> 
>> On Dec 15, 2012, at 1:11 PM, WA5CAB at cs.com wrote:
>> 
>> >Has anyone ever heard of or seen any information on the subject.  I know 
>> >that the letters don't match the words but that's what I was told.  Supposedly 
>> >associated with the GPR-90 and GPT-750.  There was supposed to have been a 
>> >Bulletin H-183 giving the specs.
>> >
>> >Robert Downs - Houston
> 
> 
> Robert Downs - Houston
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