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Controls the unit's power supply, requiring both power and standby to be on for operation.
Disables speaker output while keeping tube filaments warm; extends tube life.
Selects speaker count and adjusts amplifier output power for lower volume levels.
Adjusts the overall volume output level of the amplifier.
Connects the amplifier to a grounded outlet using specified voltage and frequency.
Protects against electrical faults; replace with specified type and rating.
Connects the footswitch for remote control of the Vibrato effect.
Information on high-quality tubes, replacement, and matching for optimal performance.