New, Used & Vintage Instruments & Repairs

THD Univalve 15w tube head


  • Manufacturer: THD
  • Product Type: Used Store-Owned

1 in stock

SKU: 67477T Categories: , ,
  • 15W Class A amplifier
  • Single-ended Class A circuit
  • Handbuilt
  • Accepts almost any power tubes in any combination
  • 2 – 12AX7s (preamp) and a single EL34 (power amp)
  • Preamp tubes can be any combination of 12AX7, 12AT7, 12AU7, 12AY7, or 12AZ7 tubes
  • 2 inputs: one for high gain and one for low gain
  • Volume, Treble, Bass, and Attitude knobs
  • Built-in Hot Plate output attenuator
  • Volume, Treble, and Bass controls
  • Attitude control knob
  • Hard-bypass switch for Hot Plate
  • Light bulb noise-reduction circuit
  • On-Off switch for light bulb circuit
  • Transformer-isolated line out with adjustable level control
  • Choose Line-Level or Instrument-Level signal
  • 2 ohms to 16 ohms speaker load

Additional Information



Product Type

Used Store-Owned