[GreenKeys] Teletype Model 17

[Jim Haynes]

Model 17 was a Hellschreiber-like machine.  I can only presume, not state
as a fact, that maybe they were used to monitor German Hellschreiber
transmissions during ww-II.

I have and have scanned the following material on Model 17

Specification S-5226, November 29, 1939, "Description of Teletype Model
17 Radio Printing System using 7-line Character Pattern"

Drawing WD-2036  Wiring Diagram of Transmitting Table

Drawing WD-1902  Wiring Diagram of Rectifier-Amplifier

Drawing WD-2039  Wiring Diagram of Receiving Station Cable Connections

Bulletin 103 Description and Adjustments of the Tape Transmitter

Bulletin 1018  Parts, Tape Transmitter and Auto Control Relay Unit

Drawing WD-2004 Wiring Diagram of the transmitter

Bulletin 1096  Parts, Scanning Distributor Model 17

Specification S-5186  Adjustment of the Radio Distributor, Model 17

Specification S-5298  Adjustments, Lubrication, and Preparation of
    Operation of the Model 17 Radio Printer

Drawing WD-2012  Wiring Diagram, Model 17 Radio Printer

Specification S-5286  REC-17 Rectifier, Description and Adjustments

Specification S-5287  REC-17 Rectifier, Mounting on Table

The Model 17 printer was, like the Hellschreiber, a simple machine in
which a paper tape passed between a spiral platen and a print hammer.

The sending machine used a Baudot perforated tape, read by a magnet-
stepped transmitter, and then there was a "distributor" which translated
Baudot to Hellschreiber signals.