[Milsurplus] Unknown ADF Receiver

[Francesco Ledda]

Wilcox 807 = AN/ARC-134

 

From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of
Bruce Gentry
Sent: Saturday, November 12, 2016 12:18 PM
To: Milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] Unknown ADF Receiver

 

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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