This Tube Amplifier Kit is easy to build, sound great, and is just fun! The Tube Amplifier utilizes a 10GV8 triode-pentode tube; which provides 8 tube stereo performance with just 4 tubes. The amplifier has built in volume control so that it can be driven directly from a CD player, tuner, etc. The amplifier operates from 120 Volts 60 hertz and may be plugged into a convenient outlet.
The kit comes complete with resistors, capacitors, tubes, connectors, circuit board, transformers, and all necessary hardware to mount on the provided "bread board".
A finished case is available for the 12G Stereo Amplifier.
Model 12G Stereo Integrated Tube Amplifier
The 12G Stereo Integrated Tube Amplifier is designed to operate from the audio output of CD players, tuners, etc., and uses RCA jacks for the inputs. The amplifier is designed to operate from 120 Volts 60 Hertz and may be plugged into a convenient outlet. The Stereo Integrated Tube Amplifier is designed to operate with matching 4 to 8 ohm speakers.
Input Impedance = 100k ohms
Output Impedance = 8 ohms
Output Power = Push Pull 8 Watts per Channel
The circuit is a Class A amplifier
Minimum Input for full output = .4 V
Frequency Response = 20 to 20,000 Hz
Total Harmonic Distortion at 1 Watt <1%
Note: All tube sockets are Ceramic.
Site Updated June 2017
Caution: This amplifier may be operated as supplied, however voltages in excess of 240 volts are present on the board and the tubes get veryhot. It is advised that the amplifier be mounted in a well-ventilated metal enclosure to reduce the potential of fire or shock.