[Boatanchors] Free for postage...1940's "varactor"

[Glenn Little WB4UIV]

IIRC this is a wobulator. Used to fm an oscillator in some test equipment 
and military applications.

73
Glenn
WB4UIV

At 12:14 AM 10/12/04, Vic Rosenthal wrote:
>...well, they didn't call it a varactor, but that's the modern 
>equivalent.  What it is is a voice coil and magnet assembly, but instead 
>of driving a speaker it moves a small brass collar up and down around two 
>plates of a capacitor.  It could be used to generate direct FM by hooking 
>it across a VFO tuned circuit. Or make a sweep generator!
>
>It is about 3" x 3" x 3" and weighs about 3-1/2 pounds.  I will send it to 
>anyone who wants to pay the postage from 93705.  I haven't tried it, but 
>it looks to be in good condition -- the coil moves freely and the whole 
>thing is relatively clean.  Somebody must need this.
>
>--
>73,
>Vic, K2VCO
>Fresno CA
>http://www.qsl.net/k2vco
>
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