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Introduced: August 1993, PV-12A and PV-12AL in January 1997
The PV-12 superseded the PV11. Like its predecessor, it featured zero feedback circuits, and passive equalization in the phono stage. For the PV12, critical plate resistors are a special laser-trimmed metal foil type chosen for their extremely low noise and low inductance. The balance control is an eleven-step switch incorporating discrete resistors.
The PV-12L is a line stage version of the PV-12 without the phono section. The PV-12A/AL upgrade consisted of upgrading the volume control circuit and incorporationg a new biasing circuit for the input amplifier of the line stage. This new arrangement eliminates local feedback from the line stage voltage amplifier.
Features:
Inputs/Outputs: Phono, Tuner, Auxiliary, monitor and recording facilities for two tape decks. One amplifier (Main) output.
Controls:
Source Selector, Record Out Selector, Balance, Volume, & Power.
PV12L/PV12AL
V1 & V2: unused
V3: unused
V4 unused.
V5, & V6: 12AU7
Replacement Tubes Set RT12 RT12L
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 18 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 78 dB below 10 mv input
Line Stage 92 dB below 2.5 volt output
Phase Response: Line Stage phase inverting, Phono Stage phase correct
Mechanical: 19" X 3.15" x 12.5"