Heathkit

FM-3A

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 1957
Dimensions
(H × W × D)
Weight 5lbs (Net), 8lbs (Shipped)
Power Source 105-125VAC, 50/60Hz 35W
Additional Specifications
Tuning Range 88MHz-108MHz
IF Frequency 10.7MHz
Output Voltage (Fixed, 30% Modulation at 100µV Input) 0.12V
Output Impedance (Fixed) 47kΩ
Output Voltage (Variable, 30% Modulation at 100µV Input) 1.5V
Output Impedance (Variable) 15kΩ
Sensitivity (20dB Quieting, 88Mhz, Unaligned) 8µV
Sensitivity (20dB Quieting, 98Mhz, Unaligned) 10µV
Sensitivity (20dB Quieting, 108Mhz, Unaligned) 15µV
Sensitivity (20dB Quieting, 88Mhz, Aligned) 5µV
Sensitivity (20dB Quieting, 98Mhz, Aligned) 8µV
Sensitivity (20dB Quieting, 108Mhz, Aligned) 9µV
Tube Complement 6X4, 6BQ7A, 6U8, 6CB6 (x2), 6AL5, 6C4
MSRP (1957) $25.95

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