Product Details:

Refer to the American Conrad-Johnson PV12 power amplifier circuit.

Design features: The amplifying part adopts the original Conrad-Johnson PV12 circuit. The power supply part is not the original circuit, but instead uses electronic tube rectification. The Japanese  FET is used for voltage stabilization. At the same time, this voltage stabilizing circuit has a high voltage start delay. And the filament voltage delay. (Protect the life of the tube)

6Z4 tube rectification.

Because the anode is powered by a high voltage of 330V, the filament is designed to float around 75V to prevent high voltage and filament ignition.

Use 50W pure copper R core transformer for power supply.

Taiwan-made pure copper input and output RCA terminals, Japanese ALPS27 volume potentiometer, Japanese Canamate internal signal line, British IRC resistor (amplified part), Japanese KOA and Panasonic resistors (power part), French small S coupling capacitor , Philips BC high-voltage filter capacitor, Japanese chemical filter capacitor (filament filter), double-sided gold-plated military PCB board.

All aluminum solid knobs, all aluminum alloy chassis.

The signal-to-noise ratio is high, and the noise output is about 3mV.

With tube Version uses electronic tube: Shuguang 6Z4*1, Czech Republic ECC82*2

Working voltage: AC110V or AC220V

Dimensions (W*H*D): 430*90*310MM

Net weight: about 7.8KG


Package list:

1 × Finished tube pre-amplifier

Image 01 - Reference American Conrad-Johnson PV12 ECC82 Tube Preamplifier 3 Input 2 Output
Image 2 - Reference American Conrad-Johnson PV12 ECC82 Tube Preamplifier 3 Input 2 Output
Image 3 - Reference American Conrad-Johnson PV12 ECC82 Tube Preamplifier 3 Input 2 Output
Image 4 - Reference American Conrad-Johnson PV12 ECC82 Tube Preamplifier 3 Input 2 Output
Image 5 - Reference American Conrad-Johnson PV12 ECC82 Tube Preamplifier 3 Input 2 Output


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