[Milsurplus] Re: [ARC5] VHF AN/ARC-5 more small details

[Mike Hanz]

William Donzelli wrote:

>I have been going thru an old SIG 5 (1945 edition), as any milgeek would, 
>and came across two Command Set pieces I have never heard about* - 
>MX-18/ARC-5 and ID-27/ARC-5. The former is apparently a box with three of 
>the large connectors, used so two transmitter racks could be used with 
>one set/ the latter is more of a mystery - the description says it is for 
>calibration of the 3-6 MHz "turntable" (SIC) control boxes.
>Any insight on these fabled pieces?
>  
>

The MX-18 was a 'connector' (as opposed to a box with connectors.)   
I've never seen one, but it is essentially three of the twelve pin 
connectors brazed together with transition pieces to form a "T".  Too 
fragile, I suspect, to last very long in the fleet.  A "real" box was 
introduced later on to accomplish the same thing - the J-34/ARC-5. 

The ID-27/ARC-5 is a 1.5-3.0 MHz dial for the remote control heads...the 
Signal Corps could never get things right.  :-)    That "turntable" 
should read "tunable", the whole phrase being "tunable receiver control 
units...".

73,
Mike