[Milsurplus] Unknown ADF Receiver

[Bruce Gentry]

The tube lineup reminds me of an older Lear ADF. I'm not certain if 
there was a military version or not. It's possible it was bought and 
used under it's commercial name and never issued an AN/  number, just  
as was done with the Wilcox 807 transceiver.    Bruce Gentry, KA2IVY

On 11/12/16 1:03 PM, Michael Bittner wrote:
> Can anyone help me find the nomenclature, or any other information, on 
> an unknown ADF receiver?  I copied a partial schematic for it from its 
> original manual in the radio shop of the old Alameda Naval Air Station 
> back in the 1960s, but failed to copy its nomenclature or the manual 
> number.  I thought it was an ARN-59, but have since found that the 
> ARN-59 has subminiature tubes.  This unknown one has a lineup of very 
> ordinary 7 & 9-pin miniature tubes as follows:
> 6BA6 loop amplifier
> 6BA6 RF amplifier
> 6BE6 converter
> Two 6BJ6 IF amplifiers
> 6BF6 audio and AGC detectors and audio amplifier
> 12AX7 audio phase splitter
> Two 6AK6 push-pull audio amplifiers
> Two 6X4 full-wave rectifiers
> Probably some others associated with loop control function
> It must have been used in Navy aircraft of the 1950s and 60s, but I 
> have been able to find anything online thus far.  Help anyone?
> Mike, W6MAB
>
>
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