[Milsurplus] Mechanical Modulator

[WA5CAB at cs.com]

The original question was about a localizer receiver.  Nothing to do with an 
altimeter.

In a message dated 9/13/2008 3:12:02 PM Central Daylight Time, jfor at quik.com 
writes: 
> It is from the APN-1.  In later life, these were also used in DC 
> electrometers.
> 
> -John
> 
> ==============
> 
> WB6BLV (DM06) wrote:
> 
> >I suspect the reference is to the 'Wobbulator" (spelling??) used on the
> >APN-1 (I think) radio altimeter... the device is actually a 
> voicecoil-driven
> >variable capacitor with a fairly strong permanent magnet...  I have some
> >here I picked up years ago at a surplus store in LA and I have had fun
> >playing with them from time to time... they give fair audio FM and they 
> make
> >interesting sweep generator elements...
> >
> >John
> >WB6BLV at inreach.com
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480   
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