[ARC5] That two pin connector RU and 183

[WA5CAB at cs.com]

The 3146 also differs from the 77 in that the ID of the gland or tube on 
the rear of the connector is 1/4".  On the 77 it is 3/8".  Besides 77's, I 
also have a few 3146's.

In a message dated 09/06/2011 09:54:31 AM Central Daylight Time, 
scr287 at att.net writes: 
> That little two pin threaded connector has
> a number of designations and usages.
> 
> Bur first, going back to the SCR-183.  The
> cable to the antenna relay uses a PL-77, two
> of these if using the TM-A(*)-172.  This is a
> "banana plug" style of connector typical of
> those sets.
> 
> Now on the RU/GF.  The antenna relay cable
> uses a Navy Type 77. However this is *not* the
> same as the Army PL-77.  The Navy 77 is the
> two pin threaded connector. Whether the similar
> designations is a coincidence or not, who knows?
> 
> The test meter uses a connector which is physically
> the same as the Navy Type 77, but has one pin marked with
> a plus sign, this goes by the ARC part number of 3146.  I have not found 
> any Navy Type designation for this connector. In Army usage, on
> the early SCR-274N installations(with the I-71 tuning meter), it is 
> known as the PL-157.
> 
> Now to the VHF AN/ARC-5.  This same 3146 connector is used to
> connect to the C-42 and C-43 control boxes with an optional
> sidetone injection cable, from the receiver rack. In the parts
> list it is listed as a part of the CD-905 cable, and uses the
> Army PL-157 part number.
> 
> Talk about arcane trivia.....
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480