Audio Database

Model112
Commentary

An FM/AM tuner that inherits the basic performance of the Model125 and has a compact front panel size to match the pre-main amp Models 1070 and 1040.

The FM front-end uses MOS-FET, and the IF circuit consists of one IC, three transistors, and three 2-element ceramic filters.

PLL is used in the MPX section, and in addition, mono / stereo automatic switching is provided.

The front end, IF stage and MPX circuit are each laid out on a separate board and covered by a completely shielded case.
This also passes the América Futebol Clube C standard for Radio noises.

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) 60dB
Capture ratio 1.6dB
Image rejection ratio 70dB
Signal-to-noise ratio mono:70dB
stereo:60dB
Distortion factor mono:0.15%
stereo:0.3%
Frequency response (50 μ sec, de-emphasis) 50 Hz to 15 kHz ± 1 dB
Stereo separation 42dB(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) 70dB
Signal-to-noise ratio 50dB
Frequency response (-3dB down) 50 Hz to 4 kHz
Distortion factor 1%
<General>
Pwer 100 VAC, 50Hz/60Hz
Power consumption 20W
External dimensions Width 360x Height 120x Depth 280 mm (Width and height are panel dimensions)
Weight 6.4kg
Sold Separately Walnut Cabinet WC-20 (¥ 5,900)
Rack Mount Adapter RA-10 (¥ 4,900)