Heathkit

FM-4U

Radio Tuner

Main Details
Maker Heathkit Brand Daystrom Ltd. Company
Function
Additional Model ID FM Tuner
Signal Path Analog Hardware
Made In United Kingdom
Date Produced 1960
Dimensions
(H × W × D)
Power Source 100-130/200-250VAC, 40-60Hz 30W
Frequency Response 20Hz-20kHz ±2dB
Notes Composed of FMT-4U RF Tuning Unit (£2 15s) and FMA-4U IF Amplifier/Cabinet/Power Supply (£13 13s).
Additional Specifications
Tuning Range (FM) 88MHz-108MHz
Intermediate Frequency (FM) 10.7MHz
Sensitivity (FM, 20dB Quieting) 2.5µV
Sensitivity (FM, 45dB Quieting) 25µV
AM Suppression 30dB
IF Rejection 50dB
Image Rejection 32dB
THD 1%
Output Voltage 1V
Output Impedance 1.5kΩ
MSRP (1966) £16 8s

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