[Milsurplus] Unknown ADF Receiver

[Francesco Ledda]

You are right. For example, the 807 was used on the AN/ MRC-107 and was called Wilcox 807A. The only application that I know of the 807 called ARC-134 was the installation on the Huey helicopter.


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> On Nov 12, 2016, at 13:50, Bruce Gentry <ka2ivy at verizon.net> wrote:
> 
> That is a surprise to me, and may have applied only to airborne installations. When these were used in control towers or GCA vans, all the manuals and equipment registers called them a Wilcox 807 in 1970-73. Also,  our ILS marker beacon transmitters and their manuals  had only commercial numbers, no GRN- or GRT- numbers at all.  I  think there was a fair amount of equipment that  never had an AN/ number or the number was obscure and no one bothered with it on the logs.  Bruce KA2IVY 
> 
>> On 11/12/16 1:58 PM, Francesco Ledda wrote:
>> 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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