356A Voice of the Stars

Amplifier, Power

Main Details
Maker Altec Brand Altec Lansing Brand Altec Lansing Corporation Company Ling-Temco Electronics, Inc. Company
  • 1 × Channel
Signal Path Analog Hardware
Made In United States
Date Produced 1960
(H × W × D)
Power Source 117VAC, 50/60Hz 80W
Frequency Response 50Hz-20kHz ±1dB (High Level), 30Hz-10kHz ±1dB (Low Level)
Additional Specifications
Power Output (2% THD, 70Hz-15kHz) 18W
Power Output (Music, EIA RS 234) 26W
Gain (High Level) 68dB With Altec 15095 Line Transformer
Gain (Low Level) 113dB With Altec 4722 Transformer
Input Sensitivity (High Level) 0.37V
Input Sensitivity (Low Level) 3mV
Input Impedance (High Level) 1MΩ
Source Impedance (High Level) 150Ω, 600Ω With Altec 15095 Line Transformer
Input Impedance (Low Level) 3.3MΩ
Source Impedance (Low Level) 30/50Ω, 150/250Ω With Altec 4722 Line Transformer
Load Impedance 8/16/250Ω
Load Voltage 70V
SNR (High Level) 71dB
SNR (Low Level) 52dB
Output Tube EL84
Tube Complement 12AX7 (x2), EL84 (x2), EZ81
Finish Dark Green


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