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Call 801-979-7797
THD Univalve,
Bivalve & Flexi 50
Man
needs this kind of versatility.
The
THD Flexi-50™ Amplifier
50W/20W Class AB amplifier.
Hand-built. Wattage select switch
(50W/20W). Single channel. Footswitchable overdrive/boost and master
volume control. Accepts almost any preamp and power tubes in any
combination. Ships with 3 - 12AX7s (preamp) and 2 EL34s (power amp).
Lo/Hi input switch. Volume, Treble, Middle, Bass, Master, and Cut
knobs. Boost section with separate Gain and Tone knobs.
- 50W/20W Class AB amplifier
- Hand-built
- Wattage select switch (50W/20W)
- Single channel
- Footswitchable overdrive/boost and master
volume control
- Accepts almost any preamp and power tubes in
any combination
- Ships with 3 - 12AX7s (preamp) and 2 EL34s
(power amp)
- Lo/Hi input switch
- Volume, Treble, Middle, Bass, Master, and Cut
knobs
- Boost section with separate Gain and Tone knobs
THD
BiValve-30 30W Class A Amplifier Head
The THD
BiValve-30 30W Class A Amplifier Head is a
pure Class A design with 2 output tubes wired in parallel and combined
through a special output transformer to deliver up to 30W. It accepts
almost any type of output or preamp tube without bias adjustment even
in combination for an astonishingly wide range of tone available for
nearly any style of guitar playing. The standard of construction is
absolutely top class, as you would expect for any handmade amplifier.
Underneath
its large, perforated steel lid you'll find large transformers and
hi-fi style internal baffle plates to cut down on hum, as well as the
tube sockets. On its front panel is a pair of input jacks labeled More
and Less, followed by a Cut switch (high-cut filter), Volume, Treble,
Bass, and Attitude (driver tube response control). In the center is a
light bulb that glows as the amp distorts with a small switch to turn
it off, a control for the built-in Hot Plate (output attenuator), and a
defeat switch for the Hot Plate.
The amp sports an acid-etched control plate with a delicate marine
theme inspired by Glasgow artist Charles Rennie Mackintosh.
THD
BiValve-30 30W Class A Amplifier Head Specifications:
- 15-1/2"W
x 8-3/4"H x 10-3/4"D
- 38 lbs.
THD
BiValve-30 30W Class A Amplifier Head Features:
- 30W
Class A amplifier
- Single channel
- Hand built
- Accepts almost any preamp and power tubes in any combination
- Ships with 3 - 12AX7s (preamp) and 2 EL34s (power amp)
- More and Less inputs
- Volume, Treble, Bass, and Attitude knobs
- Built-in Hot Plate output attenuator
THD UniValve 15W Class A Amplifier Head
15W Class A amplifier. Single-ended Class A circuit.
Hand built.
Accepts almost any power tubes in any combination. Ships with 2 -
12AX7s (preamp) and a single EL34s (power amp). 2 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. Built-in dummy load.
- 15W Class A amplifier
- Single-ended Class A circuit
- Hand built
- Accepts almost any power tubes in any
combination
- Ships with 2 - 12AX7s (preamp) and a single
EL34s (power amp)
- 2 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
- Built-in dummy load
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