[Milsurplus] DAV-2 On Off Wiring
WA5CAB at cs.com
WA5CAB at cs.com
Fri Jun 18 15:04:44 EDT 2010
Well, that makes some sense, as the original DAV was a modified MAB.
In a message dated 6/18/2010 1:31:46 PM Central Daylight Time,
RAFANTINI at salisbury.edu writes:
> Look at the schematic for the MAB, the evil twin sister of the DAV and
> you will see the same application of DC voltage to the audio transformer and
> headset with no apparent DC return path. Perhaps it has something to do
> with the fact that a 3S4 is a directly heated cathode without a separate
> cathode from the filament? With all the experts who can speculate endlessly on
> variations on rarely seen or never produced ARC-5 sets would have thought
> this would be easy!
Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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