PV7 Vacuum Tube Pre-Amplifier

Introduced in August 1986

Successor to the PV6, the PV7 is a dramatic demonstration of the excellent results obtainable with simple circuits that are carefully executed. A single triode voltage amplifier was used in the line stage (high level) directly coupled to the cathode follower. This design required only one capacitor in the line stage signal path greatly reducing the distortions and non-linearities associated with more complex designs. The phono section was noticeably quieter than earlier designs.

The PV7 offered superior definition and depth of imaging at a modest price. The conrad-johnson look and feel was evident in the PV7.


Inputs/Outputs - Phono; Tuner, Auxiliary, monitor and recording facilities for two tape decks with dubbing from Tape 1 to Tape 2. Two power amplifier (Main) outputs.


Selector, Tape 1/Tape 2, Source/Monitor, Balance, Power, Volume.

Auto-muting to suppress warm up transients.

V1, V2, & V4: 12AX7
V3 & V5: 12AT7
Replacement Tube Set RT7

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


Gain: Phono Stage 40 dB (phono overload 500 mV at 1kHz)
Line Stage 20 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 72 dB below 10 mv input
Line Stage 84 dB below 2.5 volt output
Phase Response: Line Stage phase inverting, Phono Stage phase correct
Mechanical: 14 1/2" X 3 " x 10"