[Milsurplus] A Cable Question -- MORE

[mac]

John, et-al,

Checking the Amphenol advert in my 1943 Radio's master again, the  
description of the type 93 cable end connector says  "....for any co- 
axial cable up to 13/32" in dia." BUT, then goes on to say "May be  
reamed out to fit cables up to 9/16"."  I.e., cables up to  0.5265 "  
so the use of RG-8 (0.405") here may be riginally authentic!

Dennis

************

On Jul 27, 2011, at 8:49 PM, J. Forster wrote:

> Hi Jim,
>
> The cable goes into the connector shell from the drawings I have. I'm
> beginning to think the connector hole is undersized or the cable OD
> changed when WW II starte4d.
>
> Best,
>
> -John
>
> =============
>
>
>> John
>> I just checked TM11-487 dated 2 October 1944 for information on WW2  
>> coax.
>> On
>> page 492 is the data on RG-8 which is still listed as 0.405 inch O.D.
>>
>> Looking further, for the CASSF-50-1 you mentioned I found that it  
>> indeed
>> cross
>> references to RG-8/U and is called out in the column headed as  
>> "Replaces
>> Old
>> Cable Number".  Other numbers listed as replaced by RG-8/U are:  PT5,
>> WC543,
>> WC549.
>>
>> So I would assume that the jacket is butted up to connector but  
>> does not
>> connect
>> to it as is with modern constant impedance connectors.
>> Regards,
>> Jim
>>
>>
>> ----- Original Message ----
>> From: J. Forster <jfor at quikus.com>
>> To: arc5 at mailman.qth.net; milsurplus at mailman.qth.net;
>> Vintage-Military-RADAR at yahoogroups.com
>> Sent: Wed, July 27, 2011 6:54:24 PM
>> Subject: [Milsurplus] A Cable Question
>>
>> OK, this is involved:t.
>>
>> I'm working on a LORAN-A receiver for a Museum Ship and the antenna
>> connector is an Amphenol Type 93. This is an early WW II aardvaark,  
>> used
>> in only a few places AFAIK. Thanks to a generous list member, I now  
>> have
>> the proper connector in hand.
>>
>> However, the connector will not take standard RG-8 or RG-214 cable.  
>> Their
>> OD is to big.
>>
>> Assembly instructions from another list member calls out Navy Type
>> CASSF-50-1 cable.
>>
>> Furthermore Google finds in "(1954) AN 16-30ARC5-2 Handbook  
>> Maintenance
>> Instructions AN/ARC-5" that this cable is used to connect a VHF  
>> ARC-5 to
>> the antanna and crosses it to RG-8/U.
>>
>> However, a check of current catalog of this cable specifies an OD  
>> of 0.405
>> nominal, which will not fit.
>>
>> Apparently, the OD of RG-8 has changed over time. I think cable of OD
>> <0.380" will work. The center conductor needs to be stranded.
>>
>> So, does anybody know where I can get a few (6?) feet of the stuff,  
>> even
>> more preferably with an PL-259 on one end? I'd buy a roll of maybe  
>> 100' if
>> there is a source.
>>
>> Thanks,
>>
>> -John
>>
>> ================
>>
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>
>
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