Teletype Torn Tape Transmitter Group Restorations

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TT-310/UG Transmitter Group

I acquired components for this transmitter unit but no cabinet. Video of initial Message ID Unit test with an LBXD Video of the first test with all 6 TDs running
Message ID Unit	The Message ID Unit inserts a Beginning-of-Message header with Channel ID and Sequential Message Number. It also controls ping-pong operation between its associated LBXD and LXD TDs for message transmission,

Triple TD with multi-contact LBXD	The LBXD includes a parallel-in to serial-out distributor which is also used to transmit characters from the Message ID unit as well as the message tape.

Triple TD with single-contact LXD	The LXD just reads a message tape with serial output

Testing after restoration, wiring, and assembly
Test with three Message ID units, three LBXD TDs, three LXD TDs	Test with three Message ID units, three LBXD TDs, three LXD TDs	Completed unit installed in a rack with the Message ID unit front panel and TD covers - Unfortunately I don't have the original cabinet

TT-333/UG Transmitter Group

In 2025 I acquired a complete TT-333/UG Model 28 Transmitter Group (needing some restoration) Cabinet CY-3249/UG (LBAC229) Six TD TT-334/UG (LBXD9) Two TD Base MT-2600/UG (LMXB200) Two Motor PD-67/U (LMU12)
March 2025 At the surplus auction in Las Vegas - some bent shelves but it looks complete Original cost $70,161 ?? My cost $150 The TD shelf brackets and power supply brackets had been broken from a drop at some point.

Greenkeys friend Gerry Block moved it from Las Vegas to Nashville - and then in June 2025 John Poulton and I drove there from Chapel Hill to pick it up
Gerry and the TT-333 in Nashville		After removing heavy shelves and power supply.	Unlike my other triple TD unit, these two did not have easy plug-in cable connectors
Loaded up for the trip back to NC Stay tuned as restoration proceeds!
Unloaded and in my garage awaiting restoration and re-assembly
Six LBXD9 TDs	LMU12 motors and gearshafts	Multiple TD Base LMXB200	48vdc Power Supply
Loop control panel (rear view)	Cable harnesses disconnected from multiple TD units (rear view)	Message Numbering units	Failed power supply and power factor capacitor brackets
A little more investigation
pulled out the Message Numbering Units	which gave access to the screw holding the dome lid closed	helpful note inside	Loop current adjustments inside dome
Terminal blocks TB1 TB2 inside dome	Back side of terminal blocks	side panel removed and tray slid out	Control panel rotates for access from top
damaged wires on slide connector for message numbering unit	latch on RHS slide to permit tray to slide in/ out		damaged capacitor?