Audio Database

Model104
Commentary

An FM/AM tuner developed by inheriting the ideas of advanced equipment such as circuit design and gyro touch tuning.

The IF stage consists of two composite ceramic filters and a 5-stage IF amplifier including a limiter stage. The ceramic filter has good phase linearity, little high-frequency distortion, and excellent separation and characteristics.
The limiter circuit consists of a gold-band hot-carrier type diode. The limiter is sufficient for the signal, the amplitude modulation component included in the IF signal is removed, and an excellent capture ratio is obtained.

The wood cabinet in the picture was sold as an option sold separately.
Also, there was an optional rack mount adapter sold separately.

Model Rating
Type FM/AM Tuner
FM Tuner Section
Tuning frequency range 76 MHz to 90 MHz
Sensitivity (30 dB Quadrature) 1.7 μ V
Selectivity (IHF) 50dB
Capture ratio 2.5dB
Image rejection ratio 50dB
Signal-to-noise ratio mono:68dB
stereo:58dB
Distortion factor mono:0.2%
stereo:0.5%
Frequency response (50 μ sec, de-emphasis) 50 Hz to 15 kHz ± 1 dB
Stereo separation 40dB(1kHz)
<AM Tuner Section>
Tuning frequency range 535 kHz to 1,605 kHz
Sensitivity 20 μ V
Selectivity 26dB
Image interference ratio (1,400 kHz) 45dB
Signal-to-noise ratio 49dB
Frequency response (-3dB down) 50 Hz to 4 kHz
Distortion factor 1%
<General>
Pwer 100 VAC, 50Hz/60Hz
Power consumption 15W
External dimensions Width 360x Height 120x Depth 280 mm (Width and height are panel dimensions)
Weight 5.5kg
Sold Separately Walnut Cabinet WC-20 (¥ 5,900)
Rack Mount Adapter RA-10 (¥ 4,900)