MV50 Vacuum Tube Power Amplifier

Introduced September 1985

The MV50 was, in effect, a more refined version of the earlier MV45. The input voltage amplifier included a cathode follower to provide low impedance drive to the inverter stage, to which it was direct coupled, eliminating one capacitor from the signal path. The remaining coupling capacitors were "cjd" polystyrene. Separate discrete dc voltage regulators supplied dc voltage to the input amplifier and the phase inverter.


Features: 4, 8, 16 ohm speaker taps (screw type), one pair of inputs, two plate fuses, power switch, rack mount front panel



V1 & V2: 5751
V3 & V4: 6FQ7
V5 ­ V8: 6CA7/EL34
Replacement Tube Set RT50

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Specifications:

45 watts per channel RMS, at 4, 8, or16 ohms both channels driven from 30Hz to 15kHz with no more than 1% THD or IMD.
Input Sensitivity: 2.35 Volts RMS to rated power
Frequency Response: 20Hz to more than 20kHz , +0, -.5dB
Hum & Noise: 90 dB below 45 watts
Dimensions: 19" X 13 5/8" x 7"
Weight: 40 lbs.