> I was in missile class in the Air Force in 1963 and the lab and course was
> entirely in tubes even though the missile was entirely in transistors.
> adaptation was very short (minutes, maybe and hour) and said that
> transistors worked like tubes except at lower voltages and power levels.
> That was all there was to transistors !!! Not bad really for a class that
> hadn't been rewritten yet (and that may have been all the instructor knew
> that time).
> 73, de Jim KG0KP
[Steve Katz] I'll bet the missle wasn't "all transistors" in 1963.
The guidance and targeting systems used high voltage microwave tubes
throughout the 1970s, including SAMs and AAMs. Of course, a lot of those
late 1950s designs didn't actually reach production levels until the
seventies (no kidding). We were building (Army) Hawks designed in '63 at
Raytheon/Martin (forebody/aftbody) in 1978; the Patriot didn't go into full
production until after that, and its acquisition system still used
tubes...ditto the Sidewinder, Sparrow, etc. -WB2WIK/6
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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