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Power supply board for guitar tube preamp. Lets get rectified, filtered power for the anode circuit, the heater supply (rectified, stable).
You can use different transformers, rectifier diodes (filament - up to 5A).
Suitable for feeding a large DIY projects - guitar and bass preamps (Alembic F2B, Tomato) and thers.
Price is for one PCB.
Manual, schematics, etc.