[BC] GE Transmitters

[Alan Kline]

Hi, Stan...

The manual I have isn't actually a TT manual--it's from a TF-5 amplifier
(high-band VHF) that was connected to the output of our old TT.  Seems that
GE built low power (5kw) transmitters, and then fed their output into
the TF amps to get 50kw visual. Did RCA or others do the same kind of thing
with early (1950's vintage) TV rigs?

Unfortunately, the books from the TT appear to have been lost when our old 
building--and the GE TX--became just a hole in the ground.  Somehow, the TF-5 
books found their way to our "new" (1974) TX site, even though the GE was never 
there, and survived another 20 years in happy retirement. Then, our TX guys
were doing some house cleaning about 2 years ago, and kept them out of the
dumpster when they remembered that I'm always on the lookout for things
like that.

That old GE served as the main for almost 20 years, and then as the aux for
11 before we abandoned that building.

Rest assured that the book now has a good, permanent home, and if you'd
still like to scan it, I'd be happy to work with you on that.  Drop me a 
note off-list... Unfortunately, I can't help with the 5513, and a quick
search at tubedata.org didn't turn one up. I'll keep my eyes open...

ak

------ At 08:33 PM 5/31/2006 -0500, The Most Honourable Stanley Adams wrote: -------
>
>Alan, make sure that the old TT manual does not leave you, it could be as
>early as a TT-5 or 6. Make sure the  Book does not get away!
>
>Alan, I need a picture and test sheet on the GL 5513 as I have a couple of
>those out of an old TT-4.
>
>I will scan it if you allow me too.  Would take it apart and let either
>Kinko's or myself do it and the return it.
>
>What I would like to see is some of the older units.
>
>One of their best transmitters, all tube was the TT-35.  We used one with an
>Amp that came from KSL and was sold by GE Broadcast to us close to the time
>that they quit the business.  Supposedly they tuned and checked it out on
>channel seven.  We found it tuned to channel 8 and had to sweep tune it in
>the field.  But it did make better color than the old Federal it replaced.
>Worked good for about 10 or so years until cavity problems became very
>common and parts were non-existent.  A lot of air cooled transmitters in the
>60's and 70's ran the 6166 which was a fine tube, bar none, very stable,
>tolerant of faults and when the visual would no longer make peak power, you
>just toss it into the aural transmitter. We could just tweak to make color,
>as the modulated stage was very broad.  Replaced all the rectifiers with
>solid state when the filament transformers started to die.
>
>Just a good rig!
>
>Barry, I do have some GE pictures for your collection which I will mail to
>you and hopefully have enough now to finish out the WE page.
>
>Stan
>
>
>
>
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