The TM504A is functionally identical, with the addition of a fan in the rear panel, and relocation of the power switch to the centre underside of the front panel. It was exclusively supplied as part of the F7523A1 MOD WQ Test Set, part number TS-4353-U, containing modules SG505 Mod WQ, SG505 Mod WR and AA501A Mod WQ.
Low Power Compartments:
High Power Compartment:
|Power||100/110/120/200/220/240 V, 48 Hz to 440 Hz, max. 220 W|
|Weight||18.5 lbs (8.4 Kg)|
|Size||9.5" (24.1 cm) H, 12" (30.5 cm) W, 20" (50.8 cm) L|
TM504 Option 2 adds internal pin headers for each slot as well as rear 50-pin and BNC connectors, allowing for custom wiring to, from and between plugins.
Documents Referencing TM504
|Tekscope 1975 V7 N3.pdf||Article||A Potpourri of Modifications and Service Hints||1975||465 • 5L4N • 464 • 466 • 575 • 576 • 577 • TM504|
The pass transistors on the low-power compartments are MJE2901 (151-0373-00, PNP) / MJE2801 (151-0349-00, NPN) − 60 V, 10 A, hfE 25 - 100. The high-power compartment has MJ2955 (151-0258-00, PNP) / 2N6258 (151-0413-00, NPN), on later serial numbers replaced with 151-0140-00, a selected 2N3055.
TM504 3/4 view
TM504 Mod UB rear. GPIB connection for use with CG551AP
TM504 Mod UB rear closeup. GPIB connection for use with CG551AP
TM504A 3/4 View