[ARC5] [Milsurplus] What on Earth? (Navy Transmitter)

Dennis DuVall scr522 at earthlink.net
Thu Aug 25 13:08:55 EDT 2011


Looks like a pair of 807s in parallel in a Heising modulator scheme,  
same as in the MO-1 and MAK transceivers.  Other similarities too  
liked the tapped antenna coil and what could be the modulation  
reactor.  Looks like there's a 6L6 tucked in there too (xtal osc?).

Dennis D.  W7QHO
Glendale, CA

*******************
On Aug 25, 2011, at 4:49 AM, Mike Hanz wrote:

> Ed Zeranski and I were just musing about that one a couple of days  
> ago.
> Appears to be another one of a number of small instrumentation
> transmitters that the Navy acquired in 1940 and 1941.  Perhaps the
> better known of the types that were purchased was the Doolittle Radio
> Co. GWY-1 and GWY-2, which also used an 807 PA but had twin 6L6s for  
> the
> modulator, and did not include the receive function (example at
> http://aafradio.org/sidebar/GWY-2.html ).  You can see the
> similarities.  This particular example on ebay has the shock mount,
> which is a bit unusual to find.
>
> 73,
> Mike
>
> On 8/25/2011 7:04 AM, David Stinson wrote:
>> Huh?
>>
>> http://www.ebay.com/itm/220834670039
>
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