Rabu, 04 November 2009

Conrad Johnson PV-8 ( SOLD )
















Komponen2 yg dipakai jenis high grade dan masih original..















2 bh transisitor regulator jg masih original merk motorola






























tampilan komponen full......ada 6 tabung di dlm nya. 2x 12AX7 ; 2x5965; 2 x 5751















tampilan belakang : rca input :tape1;tape2;cd;tuner dan Phono
rca out put 1 dan output 2...






























tampak belakang















tampak atas..lumayan mulus















tampak depan...ada 4 knob : selector,balance dan volume
warna chasing sedikit kusam tp masih terlihat utuh


spec lengkap dari web CONRAD JOHNSON

PV8 Vacuum Tube Pre-Amplifier

Introduced in March 1988

The PV8 superceded the PV5. It was the first all-tube zero-feedback design from conrad-johnson. The basic audio circuit of the PV8 is modular, built from individual gain blocks consisting of a triode amplifier direct coupled to a cathode follower. The phono stage consists of a gain block, a passive RIAA network, and a second gain block. The line stage consists of a single gain block. These stages use polypropylene capacitors bypassed by a polystyrene capacitor for the output stages. Even the main dc power supplies used polypropylene capacitors - there are no electrolytic capacitors in the audio circuits or their related power supplies. Paralleled triode sections at the phono input yield nearly 3 dB improvements in the signal to noise ratio over a single input tube (as used in the earlier PV5).

Features:

Inputs/Outputs — Phono, Tuner, Auxiliary, monitor and recording facilities for two tape decks with dubbing from Tape 1 to Tape 2. One amplifier (Main) output

Controls:

Selector, Tape 1/Tape 2, Source/Monitor, Mode (Left, Right, Stereo, Stereo Reverse, Mono), Balance, Power, Volume.

Auto muting to suppress warm-up transients.



V1 & V2: 12AX7
V3 & V5: 5751
V4 & V6: 5965
Replacement Tube Set RT8

Click above for technical info on this product or to purchase a replacement tube kit.

Specifications:

Gain: Phono Stage 47 dB (phono overload 200 mV at 1kHz)
Line Stage 31 dB
Distortion: less than .1% THD or IMD
Response: bandpass 2Hz to more than 100kHz
RIAA equalization: +/- .25 dB (20 to 20 kHz)
S/N Ratio: Phono Stage 76 dB below 10 mv input
Line Stage 85 dB below 2.5 volt output
Phase Response: Line Stage phase inverting, Phono Stage phase correct
Mechanical: 19" X 3 " x 12 "

Tidak ada komentar:

Posting Komentar