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

Vic Rosenthal vic at rakefet.com
Tue Oct 12 00:14:46 EDT 2004


...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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