MODELS 14, 15 AND 19
Teletype Model 19 Restoration Series Playlist:
Episode 1-3: Main Documents
Teletype Model 19 Restoration
This videos is a demo of our fully restored Model 19 and Model 15 5-bit Baudot Teletypes.
Here are some main references to Model 15/19 Teletypes
Navy Guide to Teletypes
Model 15 Printer
Model 19 Table
Model 15 Keyboard and Punch
Link to Mr RTTY
Episode 2 Documentation: TTYLoopDriver and BaudotRSS
5-Bit TTY Interfaces
In this demo we use a modern 60 mA interface to print newsfeeds on our teletype
John Nagel TTYLoopDriver
John Nagel Baudot RSS and how to install
Episode 4 Documentation: Power Supply
REC-30 Teletype Power Supply
This high voltage DC power supply uses blue-glowing thyratron tubes.
Episode 5-6 Documentation: Model 15 Keyboard and Punch
Keyboard and Punch
It takes two episodes to repair the keyboard and the tape punch unit. The punch counter gives us particular trouble.
Model 15 Keyboard / Punch
Annotated Keyboard Schematic Picture
Annotated Keyboard Wiring Picture
Episode 9 Documentation: Model 15
Fixing the Model 15
Getting our Model 15 to work necessitates a deep dive into the actual wiring and adjustments of our particular unit. We unearth a few subtle faults introduced during a previous restoration attempts.
Model 15 Adjustments
Model 15 actual wiring picture
Episode 12 Documentation: Model 14 T/D
Model 14 T/D (Transmitter Distributor)
This units reads previously recorded punched tapes for transmission.
Manual of the Model 14
Model 14 Adjustments
Model 14 Schematics Picture
Model 14 Actual Wiring Picture
Episode 13 Documentation: Model 19 Table
Model 19 Table Wiring
The complete rewiring of our Model 19 table forces us to finally reverse engineer the apparently incomprehensible wiring arrangements.
Annotated Picture of AC wiring
Annotated Picture of DC wiring
Annotated Picture of signal wiring
Episode 14 Documentation: Adding the Motor Stop Feature
Adding the motor stop feature
Quite a number of features are optional on the series 15. In this episode, we add the motor stop feature.
Picture of Motor Stop Feature Components
Link to Mr. RTTY
Episode 15 Documentation: Model 14 Reperforator
Model 14 Reperforator
We add one final piece of 5-bit teletype equipment: a reperforator.
Model 14 Reperf Manual