PS503A: Difference between revisions
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{{Spec | Ripple and noise | <3 mV<sub>p-p</sub> @ 1 A on either rail }} | {{Spec | Ripple and noise | <3 mV<sub>p-p</sub> @ 1 A on either rail }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Links== | |||
* [https://youtube.com/watch?v=h5ZH7e3sXbo Tektronix PS503A Power Supply Restoration] by NFM @ YouTube | |||
* Tektronix PS503A Power Supply: [https://youtube.com/watch?v=QFdy2mf_5qgm Part 1 (cleanup)] / [https://youtube.com/watch?v=1Q7qj2qEKpQ Part 2 (repair)] by IMSAI Guy @ YouTube | |||
{{Documents|Link=PS503A}} | |||
{{PatentLinks|PS503A}} | |||
==Rear Interface== | ==Rear Interface== | ||
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* Remote sensing (+ Sense 23A, − Sense 23B) | * Remote sensing (+ Sense 23A, − Sense 23B) | ||
</small> | </small> | ||
==Pictures== | ==Pictures== | ||
Latest revision as of 06:31, 6 October 2024
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 1 A, as well as +5 V at 1 A, and was introduced in 1976.
It replaced the earlier PS503 version (1972), adding the capability to deliver ±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 if used in low power compartment); 1 A fixed on +5 V |
| Ripple and noise | <3 mVp-p @ 1 A on either rail |
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 PS503A
Rear Interface
- +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)
Pictures
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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 PS503A
- (no results)