[ARC5] Huntsville, AL, Military Show This Weekend - HS-33 Question

[Mike Morrow]

There is a small Alabama Military Collectors Association show taking place this weekend.

I saw two BC-611-F units, and one T-74/CRT-3 with all accessories and manual.

The most impressive thing was a NOS M-9B Norden reflex bombsight head, for $1350, no
accessories, no stabilizer base.  Still, it's a very interesting device and must have
cost the government a fortune.

List member Taigh Ramey has a great amount of interesting information at:

http://www.twinbeech.com/norden_bombsight.htm#12-20-08

In particular, the upper half of a photo from Taigh's site shows the exact model
of unit that is at the show:

http://www.twinbeech.com/images/bombsight/V-4120/DSC06355web.JPG

(The lower half of the photo shows the stabilizer base.)

I acquired something less exotic...an excellent unused condition USAAF/USAF headset
with boom microphone that is somewhat similar to the USN H-46/UR shown at Mike Hanz's
site:  

http://aafradio.org/flightdeck/Peripherals-headsets.html

In contrast, this assembly is built on a standard HS-33, utilizing a M-6/UR mic element
in a MT-521A/U boom attached to the right ear cushion assembly by a MT-522A/U swivel
bracket.  The MT-521 and -522 look almost identical to the MX-314/UR boom and MT-368/UR
swivel bracket shown at:

http://aafradio.org/flightdeck/H-46.html

The headphones terminate in a PJ-054R plug, and the mic in a PJ-292 plug.  Oddly, the
phone cushion assemblies are labled NAF 48490-1.

I assumed this headset is USAAF/USAF, yet those NAF numbers and the fact that the PJ-292
mates with the JK-48 jack that is at the end of all those (usually missing) mic cords on
the J-16 and J-22*/ARC-5 jack boxes makes me uncertain.

If anyone knows the official "overall" designation of this headset, I'd appreciate
knowing it.

Mike / KK5F