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34# Apple ][ 605-5703 (DynaComp 606-5001) Power Supply 110v
- KiCad schematic reverse-engineered by Fred Sauer in 2025.
- Part numbers and compontent layout match power supply schematic published in
_The Apple II Circuit Description_ (reprint of _Apple II Reference Manual 1981_),
except for minor differences indicated on the schematic by `????` and `****`.
- Refer to [U.S. Patent 4,130,862](https://patents.google.com/patent/US4130862A)
for an explanation of key design features of this power supply.
- KiCad and PDF schematic can be found in the `Dyna-Comp-606-5001-KiCad/` folder.
<hr>
Circuit board top side:
<img width="500px" src="photos/pcb-top.jpg">
Circuit board bottom side:
<img width="500px" src="photos/pcb-bottom.jpg">
Model number `606-5001`
Specifications: `120 VAC` `60 Hz, 1 AMP`
<img width="200px" src="photos/case-back-with-model-number.jpg">
Made in `DynaComp, Richardson, TX`:
<img width="500px" src="photos/case-side1-with-dynacomp-serial-number.jpg">