Paul Versteeg
NETHERLANDS, THE • + Follow
Tools, APP Software Used etc.
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KiCad 9.0 |
Description
DIY Rebuild of the Tektronix PS503A
DIY-PS503A-Power-Supply
DIY standalone version of the Tektronix PS503A dual tracking power supply
- Lab Power Supply with dual tracking over-voltage protection.
- Output voltage +/- 0..20V
- Current limiting 0..300mA or 0..600mA
- Output overvoltage protection > 24V
- Tracking overvoltage protection with a delta of 1.4V
- Auto-ranging display with voltmeter
- Dual tracking mode with the same voltages or a percentage change
- No fan
- 230V input with R-Core transformer and input filter
Extended information can be found on my Blog:
https://www.paulvdiyblogs.net/2026/03/diy-ps503a-construction.html
https://www.paulvdiyblogs.net/2025/12/diy-ps503a-rebuild-prototype.html
There is also a front panel PCB available.
Apr 11,2026
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DIY Rebuild of the Tektronix PS503A
This is a project to rebuild the PS503A into a standalone Lab Supply with tracking over-voltage protection and a DMM voltmeter
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Published: Apr 11,2026
Standard PCB
Download Gerber file 1
BOM(Bill of materials)
Other files for Assembly
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Under the
Attribution-MIT
License.
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