ROTEL RT-322
¥ 27,500 (around 1973)
Commentary
FM/AM tuner with low-noise FET in FM front-end
Uses an IF4-stage amplifier circuit.
Model Rating
Type | FM/AM Tuner |
FM Tuner Section | |
Antenna impedance | 300 Ω equilibrium 75 Ω unbalance |
Sensitivity (IHF) | 2.2 μ V |
Distortion Factor (400 Hz, 100% modulation) | mono:0.5% stereo:1% |
Signal-to-noise ratio | 65dB |
Image interference ratio | 60dB |
Spurious response | 80dB |
Intermediate frequency interference ratio | 80dB |
Capture ratio | 3dB |
Selectivity | 45dB |
Separation | 35dB(1kHz) |
SCA suppression ratio | 60dB |
AM suppression ratio | 40dB |
<AM Tuner Section> | |
Sensitivity | 25 μ V (S/N = 20 db) |
Image interference ratio | 50dB(1MHz) |
Intermediate frequency interference ratio | 50dB(1MHz) |
Signal-to-noise ratio | 50dB |
<General> | |
Semiconductor used | Transistor : 19 FET : 1 Diode : 10 pcs |
External dimensions | Width 350x Height 110x Depth 255 mm |
Weight | 3.9kg |