Последнее обновление Рефер Конрад-Джонсон PV12 Трубный предусилитель 6U4N 6Z4 6X4 12AU7 ECC82 HIFI Предусилитель Усилитель Звука на.

Последнее обновление Рефер Конрад-Джонсон PV12 Трубный предусилитель 6U4N 6Z4 6X4 12AU7 ECC82 HIFI Предусилитель Усилитель Звука на.

Version 1: 6Z4 does not include tube

Version 2: 6X4 does not contain tube

Version 3: Dawn 6Z4+Czech ECC82

Version 4: Russia 6U4N+Czech ECC82

Version 5: Dawn 6Z4+Russia 12AU7

Version 6: Russia 6U4N + Russia 12AU7

Version 7: American Tissot 6X4 + Czech ECC82

Reference American Conrad-Johnson Poetry Drunk PV12

The famous American Poetry PV12 is famous for its sweet and mellow sound. The non-negative feedback circuit is the biggest feature of this circuit. The circuit is very simple.

1. Design features: the amplifying part adopts the original Conrad-Johnson PV12 circuit, the power part is not the original circuit, but instead uses the bile rectifier, the Japanese Kubota line FET is used for voltage stabilization to increase the bile flavor and charm. Full.

2. This circuit has 6Z4 and 6X4 rectifier tube versions, and the rectifiers of 6Z4 and 6X4 can be replaced by changing two jumpers with soldering technology.

3. Because the anode is powered by a high voltage of 325V, the filament is designed to float around 75V to prevent high voltage and filament ignition.

4. Use 50W pure copper fever grade R cattle transformer for power supply.

5. The power rectifier package has Sugon 6Z4, Russia 6U4N, American Tissot 6X4 to choose from, the amplification is two 12AU7 (ECC82), there are Czech JJ tube ECC82 and Russia EH 12AU7 for choice.

6. Taiwan-made pure copper input and output RCA terminals, Japanese ALPS27 volume potentiometer, Japanese Canamate internal signal line, British IRC resistance (amplified part), American Vishay resistance (amplified part), Japanese KOA and Panasonic Resistor (power supply part), French small S coupling capacitor, Philips BC high voltage filter capacitor, Japanese chemical filter capacitor (filament filter), double-sided tin spray military circuit board.

7. The signal-to-noise ratio is high, and the noise output is about 3mV, only when the ears are attached to the speaker can hear a little bottom noise.

8. All aluminum solid knobs, all aluminum alloy chassis, panel thickness 8mm, other 3mm, size: 240mm (width) *330mm (depth, excluding the depth of the knob and RCA) *90mm (height)

9.The net weight of the whole machine is 3.8KG (without packaging).

The following are real photos of the camera.