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Technic details
Specifications
Type:
Mono Tube Power Amplifier
Power Output:
20W (Continuous)
40W (Instantaneous peak)
Efficiency:
60% at 20W
Gain:
40dB (Minimum)
95dB (Maximum gain available with Pre-Amp and Transformer)
Frequency Range:
20Hz to 20kHz, ±1dB
10Hz to 100kHz, ±3dB
Distortion:
Less than 1% (At 20W output, 20Hz to 20kHz)
I.M. Distortion (RMS):
1% or less (If instantaneous peak power is below 40W)
Impulse Distortion:
Negligible
Noise Level:
85dB below rated output
70dB with Pre-Amp
Damping Factor:
10 or better (For 4, 8, 16 and 32Ω output windings and approximately)
17 (For 600Ω winding)
Input Impedance:
100kΩ (From 20Hz to 40kHz)
20kΩ (With input transformer, 50, 250, 600Ω, or bridging)
Output Impedance:
4, 8, 16, 32Ω or (600Ω balanced)
Valves / Tubes:
12AX7 x 1 (Pre-Amp)
12AX7 x 1 (Phase Inverter)
6J5 x 2 (Drivers)
6V6G x 2 (Power Output)
5Y3GT x 1 (Rectifier)
5Z4 x 1(Rectifier)
Power Supply:
AC 117 - 125V, 60Hz
Power Consumption:
90W (At 20W output)
55W (At zero signal output)
Dimensions (W x H x D):
206 x 171 x 133mm
Weight:
12.26kg
Year:
Around 1951
Buy this model
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