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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