067-1201-99
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The Tektronix 067-1201-99 is a power module tester / utility power supply plug-in for the TM500 system.
It allows external measurement of the mainframe's pass transistors, AC and DC supplies for a plug-in slot.
It can also be used as a simple generic power supply delivering +5 V, 1 A (from the shared +12 V unregulated supply via a 7805 type regulator) and ±15 V, 400 mA with current limiting (the latter using the mainframe's pass transistors). For this mode, the rotary switch must be in position 3 and the toggle switch set to DC.
Jared Cabot's 067-1201-99 clone
- Build a Tektronix TM500 Mainframe Tester by NFM @ YouTube
- Repair and Test a Tektronix TM502A Mainframe by NFM @ YouTube (shows how to use a 067-1201-99)
- Schematics, photos, Gerber files etc. @ groups.io
