Description
Brand: Audio Research
Type: Stereo phono preamplifier
Model: PH 7
Function: Flawless
Usage State: Second-Hand
Appearance: As good as new
SPECIFICATIONS:
rated outputs: 50v rms 10hz to 60khz, 100k ohm load (output capability is 50v rms output at 1/2% thd at 1khz).
Power Supplies: Electronically-regulated low and high voltage supplies. line regulation better than .01%.
tube complement: (4) 6922/e88cc dual triodes with jfet input, (3) 6h30 dual triodes as hv regulators.
power requirements: 100-135vac 60hz (200-270vac 50/60hz) 80 watts maximum. line fuse 3a slo blo (1.5a slo blo 230v).
input impedance: selectable 47k, 1000, 500, 200 or 100 ohms with 200pf unbalanced.
