[Milsurplus] Part ID

[WA5CAB at cs.com]

Jack,

It is an impedance matching unit that mounts in place of the lower IN-118 
on an MP-48 or MP-48-A Antenna Mast Base.  Used in conjunction with another 
special box on the rear of a BC-659 to adapt the system to coaxial cable  
Specifically used to install an SCR-610 in a 2-1/2 ton truck.  Coaxial cable 
from the box on the rear of the radio ran to the specially modified MP-48-(*). 
 The coax ran in the bottom of the mast base but instead of running up 
through the spring it ran out the side through an angle drilled hole to the 
TM-211.  From the top of the TM-211, W-128 went up through the upper IN-118 to 
the normal connection point above the insulator.

In a message dated 7/17/2010 8:40:16 PM Central Daylight Time, 
scr287 at sbcglobal.net writes: 
> I came across a little green box,
> its nameplate says:
> 
> Signal Corps
> Terminal Box
> TM-211
> 
> The contractor is CYY, and it
> carries a 1944 contract date.
> 
> Little box about 2x1.5x1 inches
> two ceramic insulated terminals,
> one labled ANT.  Ohmmeter check shows
> short to ground on both terminals, taking
> off the cover shows the insides potted.
> 
> Anyone know what this is, or what set it came
> from?
> 
> Thanks
> 
> Jack Antonio WA7DIA/4

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