PS503
The Tektronix PS503 is a triple power supply plug-in for the TM500 system.
It supplies 0 to −20 V and 0 to +20 V at 0.4 A as well as +5 V at 1 A, and was introduced in 1972.
The PS503A version (introduced in 1976) delivers ±20 V at 1 A when used in TM500 high-power compartments.
The variable supplies can be adjusted independently or can track one another, and are floating. The 5 V output is ground referenced.
Key Specifications
| Output voltage | 0 to +20 V and 0 to −20 V, floating; 5 V ±5%, ground referenced |
|---|---|
| Current limit | <100 mA to >1 A variable (0.4 A for original PS503 or if used in low power compartment); 1 A fixed on +5 V |
| Ripple and noise | <3 mVp-p @ 1 A on either rail |
Rear interface connections
- +20 V output (22A)
- −20 V output (22B)
- ±20 V common (24A, 24B)
(connections below require various jumper changes in the PS503 as described in the manual)
- Remote resistor or voltage programming (via 25A, 25B) or
- Remote sensing (+ Sense 23A, − Sense 23B)
Links
- Tektronix PS503A Power Supply Restoration by NFM @ YouTube
- Tektronix PS503A Power Supply: Part 1 (cleanup) / Part 2 (repair) by IMSAI Guy @ YouTube
Documents Referencing PS503
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| Tekscope 1972 V4 N3 May 1972.pdf | Article | TM500 series - A New Dimension in Plug-in Instrumentation | Bob Ragsdale | 1972 | TM500 system • TM501 • TM503 • FG501 • FG502 • RG501 • PG501 • SG502 • DC501 • DC502 • PS501 • PS502 • PS503 |
| 070-2088-00.pdf | Book | TM500 Series Rear Interface Data Book | 1975 | AF501 • AM501 • AM502 • DC501 • DC502 • DC503 • DC504 • DC505 • DC505A • DM501 • DM502 • FG501 • FG502 • FG503 • MR501 • PG501 • PG502 • PG505 • PG506 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • RG501 • SC501 • SC502 • SG502 • SG503 • TG501 | |
| 070-2088-01.pdf | Book | TM500 Series Rear Interface Data Book | 1976 | AF501 • AM501 • AM502 • AM511 • DC501 • DC502 • DC503 • DC504 • DC505 • DC505A • DD501 • DM501 • DM502 • FG501 • FG502 • FG503 • FG504 • LA501 • MR501 • PG501 • PG502 • PG505 • PG506 • PG508 • PS501 • PS502 • PS503 • PS503A • PS505 • RG501 • SC501 • SC502 • SG502 • SG503 • SG504 • SW503 • TG501 • TR501 • TR502 |
Prices
| Year | 1975 |
|---|---|
| Catalog Price | $195 |
| In 2023 Dollars | $1,100 |
Pictures
PS503
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PS503 Front Panel
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PS503 Left Internal
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PS503 Right Internal
PS503M
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PS503M Front Panel
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PS503M Left Internal
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PS503M Right Internal
PS503A
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PS503A Front Panel
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PS503A Left Internal
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PS503A Right Internal
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Switch S95 in rear of PS503A (detects high power compartment)
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PS503A Front Panel
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PS503A Left Internal
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PS503A Right Internal
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PS503A Side
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PS503A Rear connector
Components
Some Parts Used in the PS503