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SPECIFICATIONS
Vacuum Tubes: 2 x 300B, 2 x 6SL7GT
2 x 5AR4, 2 x OD3
Lamp type 1/4 X 1 1/4, 12 volt, .15 amp
Fuse type 120VAC operation: MDL2, 2 AMP / 250 Volt
220VAC operation: MDL1, 1 AMP / 250 Volt
SLO-BLO
Gain 18 dB at max Volume
1 volt in = 8 volts out
Noise Floor typically -70 dB 1Hz - 100 kHz
Signal to noise typically 105 dB A WGT 20-20K
Frequency Response 5 Hz to 50 kHz @ +/- 1 dB
Distortion THD+N = -80 dB (.01 %)
zero "crossover" distortion, mostly 2nd harmonic, unmeasurable after 5th
Volume control "Left / right tracking" 1/10 dB
Volume control "steps" -∞,-70,-60,-50,-46, -44,-42,-40,-38,-36,-34, etc, -12,-10, -6, 0
Input Impedance 100 Kohm
Output Impedance 100 ohms
Output Power (100 ohm Headphones) 1W (10 V RMS) (28 V P-P)
Output Power (600 ohm Headphones) 1W ( 25 V RMS) (70 V P-P)
Power Consumption 170 Watts (1.4 A @ 120VAC)