Model 31 and TT-30/AGA-1 Was: [GreenKeys] ebay item 7145656944

[Roy Morgan]

Model 31 and TT-30/AGA-1
Was: [GreenKeys] ebay item 7145656944

At 11:24 PM 3/29/2005, jhhaynes at earthlink.net wrote:
>Since no one else has clearly identified it yet...
>
>The machine is a Teletype Model 31, in a Western Union case.
>Other versions of the machine were sold by Teletype...
>For instance there was an airplane version of the machine, where the
>motor was also a dynamotor, running on 28VDC and generating voltages
>for a RTTY receiving converter that used vacuum tubes.  This model has a
>tube in the speed-governed motor circuit to reduce governor contact noise.


Greenkeyers,

Don House told me at one time (late 2000) he has an M-31 in possibly unused 
condition.

It's possible that I own the only other new-unused Model 31 that we know
of.  It came from the estate of Walter J. Stewart  W4UBE in Annandale
VA, who had been a Navy Communications officer.  I can assume that the 
TT-30 had been used in ASW patrol planes such as the P-2 or P-3, or 
possibly aboard ship.  I have not looked at the name tag recently, but I 
believe it is marked
"TT-30/AGA-1".

It is a military unit, in finished in black wrinkle, has a Cannon connector 
on the rear, and has two lamps on the front panel at the right above the 
keyboard. I think the motor is a governor motor for 115 volts, but  I will 
check that.  I also do not know what speed it is set up for.

It came to me with the new mating Cannon connector wrapped up and tucked 
inside.  Don suggested that I be very careful to lubricate the thing well 
before putting it into service.  Of course I will be.

This thing possesses maximum cuteness.


Maybe we should start an owners list. Here's an email I got some time ago:
>Date: Mon, 28 Aug 2000 22:22:54 -0700
>To: Roy Morgan <roy.morgan at nist.gov>
>From: gil smith <gil at vauxelectronics.com>
>Subject: model 31
>Cc: greenkeys at qth.net
>
>Hi Roy:
>Some sundry M31 poop:
>Don House says there were both KSR and RO versions of the M31 available.
>The standard Teletype M31 units did not have a keyboard cover (as far as I
>know).
>Western Union versions apparently came with two versions of a keyboard
>cover (sloping and boot-shaped).
>According to George Hutchison, the military designation for the M31 was
>AGA-1, and it sat on shock mounts for aircraft installations. Is this the
>designation on your mil unit?
>I have a Western Union M31 (with a sloping cover), which is almost working
>(needs adjusting). As I recall, Jim Haynes has one of the Western Union
>units (with a boot-shaped cover), George Hutchison has two of the AGA-1
>units, Jack Hart has two standard units, John Sheetz has a couple, Don
>House has one, and Tom Kleinschmidt has one.
>If I got this all correct, that's ten known units, and yours now makes
>eleven. There's likely a few more out there, but that's still a pretty
>small tally -- hang on to that unit. Can you send a picture?
>gil

I am now able to make digital pictures of my unit, so I can do that soon.

Roy

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
7130 Panorama Drive, Derwood MD 20855
Home: 301-330-8828 Cell 301-928-7794
Work: Voice: 301-975-3254,  Fax: 301-948-6213
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