Revox A77 PTT Circuit Diagrams and Schematics
by STUDER REVOXProfessional circuit diagrams and electrical schematics for the Revox A77 tape recorder, an essential workshop manual reference for technicians servicing this classic reel-to-reel machine. Covers all critical signal paths and control circuits: input amplifier stage (1.077.700), playback amplifier (1.077.796), oscillator (1.077.795), speed control regulation (1.077.725), switching board (1.077.499), recording amplifier (1.077.780), recording relay (1.077.715), and final amplifier with loudspeaker driver (1.077.851). Each schematic includes detailed component layouts and wiring interconnections, showing tube and transistor placements with full electrical reference data. Indispensable for troubleshooting, alignment, and restoration work on the A77.
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Document Details
- Format
- Pages
- 6
- Size
- 1.4 MB
- Category
- Audio & HiFi