[Milsurplus] Unknown ADF Receiver

[Michael Bittner]

Bruce, Thanks for the tip.  Lear ADF-14 looks close, but not the exact same tube lineup.  Still searching.  Mike, W6MAB
  ----- Original Message ----- 
  From: Bruce Gentry 
  To: Milsurplus at mailman.qth.net 
  Sent: Saturday, November 12, 2016 10:17 AM
  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



---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20161112/57354100/attachment.html>