Manley PURIST PREAMPLIFIER - Manual (Page 9)

SPECIFICATIONS
Vacuum Tubes: 2 x 5751, 2 x 6414 (Mil Spec)
Approved substitutions for 5751 12AX7A( or 6072 with less gain)
Approved substitutions for 6414 12BH7 ( or 12AT7 in a pinch)
Lamp type 1/4" X 1 1/4", 12 volt, .15 amp
BAL ccw BAL cw
Gain (line stage) LOW - 10 dB 19 dB
MED - 12.5 dB 22 dB
HIGH - 15.5 dB 25.5 dB
Noise Floor typically -60 dB 1Hz - 100 kHz
Signal to noise typically 95 dB A WGT 20-20K
Input Inpedance 100 Kohm line stages
Output Impedance 120 ohms
Power Consumption 33 Watts (275mA @ 120VAC)
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