เครื่องรับวิทยุ Marantz Model112 สภาพสวยมาก ทำงานสมบูรณ์ หายาก Made in Japan
เครื่องรับวิทยุ Marantz Model112 สภาพสวยมาก ทำงานสมบูรณ์ หายาก Made in Japan
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Marantz Model112
¥ 49,900 (released in 1976)
Commentary
A compact FM / AM tuner that inherits the basic performance of the Model 125 and has
a front panel size that matches the Integrated Amplifier Models 1070 and 1040.
The MOS-FET is adopted as an FM front end part, and the IF circuit is composed of one IC,
three transistors, and three ceramic filters of two elements.
The PLL is adopted as an MPX part, and also it is mono / stereo automatic switching.
The front end, IF stage, and MPX circuit are laid out on individual boards and covered with
a completely shielded case.
This also passes the American FCC standard for jamming radio waves.
The wood cabinet in the photo was sold as an option sold separately.
There was also a rack mount adapter as an option sold separately.
Model rating
Model FM / AM tuner
<FM tuner section>
Tuning frequency range 76MHz-90MHz
Sensitivity (30dB quieting) 1.7 μV
Selectivity (IHF) 60dB
Capture ratio 1.6dB
Image rejection ratio 70dB
SN ratio mono: 70dB
stereo: 60dB
Distortion rate mono: 0.15%
stereo: 0.3%
Frequency characteristics (50 μsec, de-emphasis) 50Hz ~ 15kHz ± 1dB
Stereo separation 42dB (1kHz)
<AM tuner section>
Tuning frequency range 535kHz to 1,605kHz
sensitivity 20 μV
Selectivity 26dB
Image interference ratio (1,400kHz) 70dB
S / N ratio 50dB
Frequency characteristics (-3dB down) 50Hz-4kHz
Distortion rate 1%
<Comprehensive>
Power supply AC100V, 50Hz / 60Hz
power consumption 20W
External dimensions Width 360 x Height 120 x 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)