Fender 65 TWIN REVERB-AMP · guitar amp
48 components · 1 parts identified · 2 photos. Tap a marked part to see what it is.
2 traced nets on this board are available to technicians. See plans
| Designator | Part (number or value) | Description | Package |
|---|---|---|---|
| C34 | - | across X 393v | |
| C35 | 100uf 100v radial | Filters -65v used to bias the power amp and also to kill the vibrato oscillator. | |
| C36 | - | across c-. | |
| J8 | - | reverb pan connector. White in to pan red out. | |
| L1 | - | Between B+ and Z. | |
| LA1 | - | across filaments power | |
| OP1 | - | vibrato optocoupler. sends vibrato to intensity knob. | |
| R63 | - | across opto lamp. Test vibrato waveform here. | |
| R69 | - | hum adjust | |
| S1 | - | power switch | |
| S3 | - | standby switch | |
| T1 | - | Reverb transformer. Green and black to white rca, red and blue from valve v3. | |
| T2 | - | speaker transformer. | |
| T3 | - | power transformer | |
| TH1 | - | ntc | |
| - | bias pot. Set c- to -50v. | ||
| - | Twisted black and white wires are heater filament wires going to all valves. | ||
| - | green wires are heater filament from transformer. | ||
| - | brown and blue to speaker transformer | ||
| - | black and green from speaker transformer | ||
| - | red B+ to speaker transformer input center tap. | ||
| - | reverb pan | ||
| - | b+, input center tap. | ||
| - | brown and blue, input |
Marked, not identified yet: C22, C23, CP13, CP14, CP15, CP16, CP23, CP24, CR1, CR2, CR3, CR4, F1, P1, P2, P3, R35, R36, R42, R43, R44, R45, R73, T3