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Old June 22nd 04, 03:11 PM
peter dingemans
 
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Default help identify: Varian VMC-1680 (5.5 GHz oscillator; Magnetron? Klystron?)

G'day everyone,

A while ago I acquired a piece of equipment, a beacon transponder on
5480 MHz (TX). In it is a 'block' that seems to be the oscillator for
TX:

type nr. is 'VMC-1680'
made by Varian/beverly
date code 88236

the sizes of it are 35*55*31 mm; it's magnetic; the output is SMA.

There's a caution on it to keep it at least 4" away from magnets.
3 wires come out of it: red, black and grey. None of them seem to be
HV-rated, so my original guess of a Magnetron or Klystron seem to be
wrong.


I wonder if it's possible to use it for Ham-purposes (it seems
tunable, and the 5,7 GHz hamband is very nearby...)

Anyway, does anyone have ANY info on it? I.e., what IS it, freq.
range, power, inputs (voltages, currents), etc. A datasheet would be
VERY nice, if it exists... (I already contacted Varian/Eimac (CPII),
but nothing came up :-( )
Any help is GREATLY appreciated.


Sincerely,

Peter Dingemans,
The Netherlands.
NB: please also mail any replies to this group to me directly,
I try to regularly check this group, but
only have limited web access.