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Electronics
Thomas PA - Schematics
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Amplifier schematics, past and present.
Current amplifier schematic.
Current power supply schematic.
The original amplifier schematic, for reference. This does not include the vibrato circuitry.
The original power supply schematic. The regulated 155VDC was used for the vibrato circuit, while the 273VDC was used external to the amplifier, probably a plate voltage for the oscillators or the preamp.
