TM504

Tektronix TM504
four-bay mainframe Tektronix TM504 Produced from 1975 to (?) Manuals TM504 Manual TM504 Manual Stitched TM504A Manual With Schematics TS-4353-U Manua (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix TM504 is a four-bay mainframe for the TM500 system. The rightmost compartment can supply a high-powered plug-in.

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.

Key Specifications

Plug-in Supplies	+33.5 V and −33.5 V, 1.4 A max shared by all compartments Low Power Compartments: 2 × 25 V_AC, 0.5 A / 25 VA; floating ≤350 V (peak) per compartment +11.5 V, and 17.5 V_AC with grounded centre tap, 3.6 A max shared between all three low power compartments High Power Compartment: 2 × 25 V_AC, 1 A / 50 VA; floating ≤350 V (peak) +11.5 V, and 17.5 V_AC with grounded centre tap, 4 A max shared between these two supplies
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

Option 2

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.

Links

F7523A1
TM 504 Power Supply Lab Checkin and a SURPRISE! @ Zenwizard Studios YouTube

Documents Referencing TM504

Document	Class	Title	Authors	Year	Links
Tekscope 1975 V7 N3.pdf	Article	A Potpourri of Modifications and Service Hints		1975	465 • 5L4N • 464 • 466 • 575 • 576 • 577 • TM504
067-1201-99 TM500 Power Module Constr Note.pdf	Application Note	TM500 Power Module Tester and Utility Power Supply	Warren Collier	1977	TM500 • TM501 • TM503 • TM504 • TM506 • TM515

Internals

The pass transistors on the low-power compartments are MJE2901 (151-0373-00, PNP) / MJE2801 (151-0349-00, NPN) − 60 V, 10 A, h_fE 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.