TELETYPE MODEL 20 PAGE PRINTER

The Teletype Corp Model 20...

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Model 20-RO Page Printer
M20-RO-1-300w.jpg

Standard Model: 20-RO
Military Model: None
Design Relatives: M15-RO
Manufactured: ??
Units Produced: ??
Units Remaining: 1 (Bill Buzbee)
Dimensions (inches): ??
Weight (pounds): ??

Keyboard: None
Code: 6-level teletypesetter (TTS) code at ?? wpm (?? baud)
Interface: 60-mA current loop (@120VDC typical)
60/20-mA selectable on later models?
Motors: 110-VAC Synchronous, or ??-VDC Governed
Options: Line relay; Polar-line relay; Motor-control relay;
Line-Break; RFI-Suppression; Remote bell;
Auto-Carriage-Return/Line-Feed; Tabulator; Sprocket-feed paper drive.


This picture, and the one above, shows Bill Buzbee's beautiful M20-RO -- the only one known to exist. It looks much like an M15, but notice there are six bellcranks, not five. M20-RO-1b-550w.jpg


Model 20 Tape perforator
M20-Perforator.jpg

Standard Model: ??
Military Model: ??
Design Relatives: ??
Manufactured: ??
Units Produced: ??
Units Remaining: ??
Dimensions (inches): ??
Weight (pounds): ??

Keyboard: ??
Code: 6-level teletypesetter (TTS) code
Interface: None
Motors: 110-VAC Synchronous, or ??-VDC Governed
Options: ??