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 |