[TMC] TMC Model RTC Remote Control Amplifier

andrea virbonialeuy at alice.it
Sun Dec 16 14:35:08 EST 2012


Hi 
I have the original manual of the RTC, 
IN-206   issue date: 1 July 1959

in the next week I'll do the scans of it and I'll send them to John
so he can add th e manual  to the site

Merry Christams at all 

Il giorno sab, 15/12/2012 alle 14.15 -0500, john poulton ha scritto:
> 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
> > wa5cab dot com (Web Store)
> > MVPA 9480
> 
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