John,
My pictures are of a M14BA unit and my not be quite the same as
your M14BR, but here are a couple.
Have you looked for a manual at
https://navy-radio.com/manuals-ttycorp.htm?
Good luck,
Duncan
K2OEQ
On 11/5/2025 7:45 PM, John Spigel
wrote:
Duncan,
unfortunately the mounting ends of the scales cast piece are
broken off and missing. Also I can't tell where the screws in the
middle of the cast piece attach. If you have pics, that may help
answer the questions.
73, John W1AN
On 05-Nov-25 15:47, Duncan Brown wrote:
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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