Heathkit

AJ-21E

Radio Tuner

Main Details
Maker Heathkit Brand Heath Company Company Daystrom, Incorporated Company
Function
Channels/Tracks
  • 1 × Channel
Signal Path Analog Hardware
Made In United States
Date Produced 1963
Dimensions
(H × W × D)
Weight 9lbs (Shipped)
Power Source 115/230VAC, 50/60Hz 19W
Frequency Response 20Hz-2kHz ±1dB, +7dB Pre-emphasis at 9.5kHz
Notes Export model with multi-voltage power transformer
Additional Specifications
Tuning Range 550kHz-1.6MHz
IF Frequency 455kHz
Sensitivity (20dB Quieting, IHFM, 1kHz) 8µV
Output Impedance 5kΩ
Input Signal (1V, 30% Modulation) 2.5µV
SNR (500µV, 30% Modulation, 400Hz) 40dB
Image Ratio (1kHz) 50dB
Harmonic Distortion (750µV, 95% Modulation) 1%
IF Rejection (1kHz) 35dB
Finish Charcoal Grey and Ivory
Tube Complement 6BA6 (x2), 6BE6, 12AU7

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