Apple IIe Aftermarket PSU (Delta Electronics)
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This is the page for the DElta Electronics MW 302 AP aftermarket power supply for the Apple IIe
Power supply should normally output voltages specified on outer casing (+/-5VDC and +/-12VDC) in an unloaded contidtion.
Known Issues
Symptom or Problem Encountered
Causes
- Non functional or clicking when powered on.
Solutions
- Replace electrolytic capacitors
Disassembly Notes
Seven screws to disassemble case. Will need to remove power switch from end to remove board from enclosure. Desolder wires from NEMA plug connection to separate completely.
Original Parts
Power Supply main board
Underside stamped with "MW 302 AP". "Delta Electronics" name found on back of NEMA plug
| RefDes | Qty | Capacitance | Voltage | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|
| C! | 1 | 0.1 µF | 250VAC | 17.8mm | 12.5mm | 15.6mm | 0 °C | Film | ISKRA | |
| C2, C3 | 2 | 4700 pF | 250VAC | 13mm | 11mm | 10.5mm | Film | ISKRA | ||
| C4, C5 | 2 | 100 µF | 200V | 16.2mm | 33mm | 7.8mm | 85 °C | Electrolytic | Jamicon | |
| C6 | 1 | 100 µF | 25V | 6.6mm | 11.6mm | 3.4mm | 85 °C | Electrolytic | ||
| C7, C8, C12 | 3 | 10 µF | 63V | 5.2mm | 11.2mm | 2.9mm | 85 °C | Electrolyitic | ||
Replacement Parts
Basic PCB Name
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| Digikey |
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.
Kits
- Digikey BOM: https://www.digikey.com/