John,
The M 14BA & BR tape printers with external Range control were
typically used in telephone company TTY test boards, so that they
could easily test for distortion on the line.
Do you have the full cast aluminum scale that is broken? If not,
I have some pictures of similar units that might help in
reproducing the scale.
73, & have fun,
Duncan Brown, K2OEQ
USASA 31J30
Antique Wireless Association
Communication Technologies Museum
Asst. Curator, Commercial Equipment
(also chief TTY op & repairman)
i-Telex: 212503
www.antiquewireless.org
Virtual AWA Museum TTY Tour:
https://www.youtube.com/watch?v=TpB6jM90VV8
On 11/5/2025 3:13 PM, John Spigel
wrote:
I have
another Teletype Corp museum piece on the bench. It's a 14 style
tape printer with financial pallets and KB. It uses 3/8" tape.
Probably from a stock broker. The pinion gear has no stamp but
appears identical to another I have for 60WPM. The cabinet has a
wood grain finish although in tough shape.It has a 1932 date
stamp. Switches for 20/60 ma loop and polar/local are brought out
nicely to the front as is a "knob" for adjusting the range. The
range control is elegantly geared and there is a cast aluminum
scale and pointer at the front of the cabinet. Along with a few
other parts, some missing por broken on the selector mechanism the
cast aluminum scale is also broken. This can be seen in the photo
here:
https://w1an.com/photos/equipment/14BR-newsm.jpg
I'm sure I can get this working without the scale but best would
be to have the 14BR parts manual and a bit of luck. Some 3/8" tape
would be nice to have also.
Thanks!
73, John W1AN
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