[GreenKeys] Teletype Model 34

[Jack]

ZCZC

To make a 35ASR into a 34ASR the 28 keyboard frame had to be changed
out (the
portion that holds the top plate for the keys) so that the
keyboard would fit into the 35's cabinet. Also, the TD in a 35
is a stand-alone with its own motor. There was a mod kit to
add an 28 LXD TD to a 35ASR cabinet that used a modified 35ASR
TD mounting plate. Somewhere out in Greenkeys land is a
"Model 34ASR" I put together years ago and then gave away.
The "conversion" was inspired by an article by Gordon Eliot White in
CQ magazine many years ago. 

73,
Jack K0TTY

NNNN




-----Original Message-----
From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Don Robert
House
Sent: Monday, May 18, 2009 12:04 PM
To: Jim Swanberg
Cc: greenkeys at mailman.qth.net; Ben Stephens
Subject: [GreenKeys] Teletype Model 34

Thanks be to Ben Stephens for this report!!!

Don
K9TTY

Hi Don,

I saw a few Model 34's.  They were used on Long Lines Project 176,  
which was the code name for our part of the Autovon communications  
system used by our Department of Defense during the Cold War.  The  
reason for the Model 34 was that a lot of the military communications

still ran on the 5-bit Baudot Code, and they needed access to existing

circuits and technology.  My guess on the cabinet work was that the  
old Model 28/29 styling was being phased out for the "modern" Model 35

styling, and with the Model 35 sheet metal as the main housings in the

production line, it was easier and cheaper to put the Model 28  
components into it.  The mechanical interface (motors, gears) was  
identical and interchangeable.  Style probably had something to do  
with it, as the old Model 28 styling would have looked out of place in

a Project 176 center, where everything else had the  M35 styling.

C. Bennett (Ben) Stephens, K9KOM
Interline Telecom Service Corp.
Lake Forest, Illinois


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