Hallicrafters

A-84 (Rev. 2)

Amplifier, Power

Main Details
Maker Hallicrafters Brand The Hallicrafters Co. Company
Function
Channels/Tracks
  • 1 × Channel
Signal Path Analog Hardware
Made In United States
Date Produced 1952-1954
Dimensions
(H × W × D)
Weight 26lbs (Shipped)
Power Source 105-125VAC, 50/60Hz 150W
Frequency Response 6Hz-100kHz ±1dB (0.5W), 9Hz-100kHz ±1dB (10W)
Notes Change in circuit with addition of two capacitors correcting ground hum issues.
Additional Specifications
Output Power 10W
Output Power (Peak) 20W
Amplifier Topology Williamson
Input Sensitivity 1.25V
THD 0.14%
IMD (40Hz:12kHz, 4:1) 0.17%
SNR (10W) 80dB
SNR (20W) 83dB
Output Impedance 0.5Ω On 16Ω Tap
Output Load Impedance 8/16Ω
Damping Factor 32
Output Tube KT-66
Tube Complement KT-66 (x2), 12AU7 (x2), 5V4G
MSRP (1953) $99.50

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