ESC
FM-4

FM-4

BrandHeathkit
ManufacturerHeath Company, Daystrom, Incorporated
FunctionRadio Tuner (Kit)
Produced1959
CountryUnited States
Signal PathAnalog Hardware
Dimensions33.7 × 10.8 × 14 cm (W × H × D)
Weight8lbs (Shipped)
Power105-125VAC, 50/60Hz 25W
Frequency Response20Hz-20kHz ±2dB
Tuning Range88MHz-108MHz
Output Voltage (Fixed, 30% Modulation, 20µV Signal)0.5V
IF Frequency10.7MHz
Output Impedance600Ω
Sensitivity (20dB Quieting)2.5µV
Sensitivity (30dB Quieting)3.5µV
Sensitivity (Maximum/45dB Quieting)25µV
Image Ratio45dB
AFC Correction Factor75kHz/V
AM Suppression25dB
THD (1100µV, 400Hz, 100% Modulation)1.5%
IMD (60Hz:6kHz, 4:1, 1100µV, 30% Modulation)1%
FinishBlack Leather Finish Vinyl and Gold
MSRP (1959)$34.95
Channels1 Channel