nuckolls.bob(at)aeroelect
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 Posted: Fri Dec 20, 2013 1:59 pm Post subject: Echoes from yesteryear |
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I've been working with a gentleman who is wanting to
restore what had to be a real leading edge example of
avionics technology in 1949 . . . but then it was
a Bill Lear invention so I guess we shouldn't be surprised.
The data package for the LTRA6 radio in all it's
configurations can be downloaded at:
http://tinyurl.com/kszadqy
I'm still looking for data on the omni-radio display
heads including the cross-pointer and/or the CRT omni-scope
displays. If anyone runs across documents on these items
I'd be very pleased to add them to the library.
High voltage for the vacuum tubes was produced by a little
motor-generator not unlike this one:
[img]cid:.0[/img]
These would take in 6, 12 or 24 volts (6v airplanes
in 1949??? maybe these radios were installed in airport
ground service vehicles too).
I was amazed at the clever marker-beacon receiver
feature . . . a simple 'crystal radio' like detector
that looked at rf from the belly mounted sled-runner
and dumped the audio right into the VHF comm receiver's
signal stream. Stone simple.
Bob . . .
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