[ARC5] Call for Data: A.R.C. "M"-marked Morgue Items

[Gordon White]

              At one time I thought the only "M" marked A.R.C. items 
that existed were those I obtained from the company when it was closed 
in Boonton,  some of which I gave to the Smithsonian's Air & Space 
Museum. I kept a few that were duplicates, but I have seen or heard of 
enough others that I think some went to Aircraft Radio Industries Co. in 
Connecticut, when A.R.C. cleared out  things at the end of WW II. They 
had to dispose of  equipment built on government contracts to settle the 
contract terminations, or otherwise "buy" the stuff. It is possible that 
some went to the Navy  or Air Corps for acceptance testing.

    I have 28 "M" - marked items.

The only ones with serial numbers are the RAV receivers and those are 
done by hand, not stamped.

Receivers:

RAV   190-550 kc, 46102 s/n B-2 (done by hand)
RAV   520-1500 kc, 46103 s/n B-1 (done by hand)
RAV   1.5-3 mc, 46104, s/n B-1 (done by hand)
RAV   13.5 - 20 mc, 46108, s/n B-1 (done by hand)
RAV   20-27 mc, 46109 s/n B-2 (done by hand)
R-20/ARC-5, 1.5-3 mc
R-21/ARC-5, 3-6 mc
R-22/ARC-5,  6-9.1 mc
ARA-2 (12 volt) 3-6 mc, 46181

MX-20/ARC-5 nav receiver adapter

GF-2 transmitter, also marked "Prod Sample"
RU-5A receiver
coil set for RU-5A receiver

T-18/ARC-5 transmitter, 2.1-3 mc

46110 2-receiver rack, probably RAT
2-receiver rack shock mount, probably RAT
AN/ARC-5  2-receiver rack
shock mount for rack
RU-3 control box
GF-3 control box
RU-4 receiver switch box
RU-3 junction box
RU-5A junction box
4-receiver rack, RAV
ARA single receiver control,  23261
RAT-1  2-receiver control, 23155
receiver test set  7369

    There might possibly be a couple of other items here with "M" markings.

        - Gordon White