The Macintosh Plus's logic board uses all axial capacitors and doesn't usually need service. The analog board does often need recapping, although usually these caps just wear out rather than leaking, so if your Plus is working fine, you can leave it alone.
| Value | Count | Type |
|---|---|---|
| 33uf 16v | 5 | Axial Electrolytic |
| 1uf 50v | 1 | Axial Electrolytic |
Note: The 3.3uf 50v capacitor at position C1 is a non-polarized electrolytic, which is no longer available. It should be replaced with a film capacitor.
| Board Positions | Value | Count | Type |
|---|---|---|---|
| C2 | 4700uf 16v | 1 | Radial Electrolytic |
| C24 | 2200uf 16v | 1 | Radial Electrolytic |
| C25, C26, C31 | 1000uf 35v | 3 | Radial Electrolytic |
| C39, C43 | 470uf 10v | 2 | Radial Electrolytic |
| C3 | 270uf 16v | 1 | Radial Electrolytic |
| C30 | 220uf 16v | 1 | Radial Electrolytic |
| C35, C36 | 100uf 200v | 2 | Radial Electrolytic |
| C5 | 47uf 10v | 1 | Axial Electrolytic |
| C11, C13 | 33uf 16v | 2 | Axial Electrolytic |
| C6, C14 | 22uf 50v | 2 | Axial Electrolytic |
| C9 | 10uf 160v | 1 | Radial Electrolytic |
| C1 | 3.3uf 50v | 1 | Non-Polar Radial Electrolytic |
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