TRIO KR-3130
¥ 54,800 (around 1970)
Commentary
Stereo receiver.
In addition to with a noise filter in addition to tone control and loudness control.
Equipped with a tape monitor function.
Equipped with microphone input.
Model Rating
| Type | FM/AM Receiver |
| Amplifier Unit | |
| Music Power (IHF) | 50W (4 Ω) 42W (8 Ω) |
| Effective power | Single-channel operation 22W/22W (4 Ω) 19W/19W (8 Ω) Both channel operation 15W + 15W (4 Ω) 14W + 14W (8 Ω) |
| Harmonic distortion factor | 0.8% or Less (Rated Output) 0.2% or less (-3dB at rated output) |
| Cross modulation distortion factor | 0.8% or Less (Rated Output) 0.2% or less (-3dB at rated output) |
| Frequency characteristic | Main input : 15 Hz to 50 kHz ± 1.5 dB Aux : 20 Hz to 40 kHz ± 1.5 dB |
| Output Bandwidth (IHF) | 20 Hz to 20 kHz |
| Damping factor | 50 (8 Ω) |
| Input Sensitivity / Impedance | Phono1, 2 : 2.5mV/50k Ω Mic : 3.0mV/100k Ω Aux, Tape play : 150mV/30k Ω Main in:100mV |
| Recording and re-output (at rated output) | Pin:150mV Din30mV |
| SN ratio (rated input) | Phono1, 2 : 60 dB Mic:58dB Aux, Tape play : 75 dB |
| Tone control | Bass : ± 10 dB (100 Hz) Treble : ± 10 dB (10 kHz) |
| High filter | -10dB(10kHz) |
| Loudness control | +10dB(100Hz) +5dB(10kHz) |
| FM Tuner Section | |
| Antenna impedance | 300 Ω balanced / 75 Ω unbalanced |
| Sensitivity (IHF) | 2.0 μ V |
| S/N | 60 dB or more |
| Distortion Factor (400 Hz, 100% modulation) | Stereo : 0.8% or less Mono : 0.5% or less |
| Capture Ratio (IHF) | 4.0dB |
| Selectivity (IHF) | 45 dB or more |
| Image ratio | 60 dB or more |
| IF Rejection | 100dB |
| AM suppression | 45 dB or more |
| Harmonic spurious response | 70 dB or more |
| Stereo separation | 30 dB or More (1 kHz) 20 dB or More (10 kHz) |
| Subcarrier suppression | 40 dB or more |
| Front end | 1 FET, 3 Series Varicon |
| IF Stage | 1IC |
| <AM Tuner Section> | |
| Antenna | Built-in high sensitivity ferrite bar antenna |
| Sensitivity (IHF) | 25 μ V |
| Selectivity (IHF) | 25dB |
| Image ratio | 45 dB or more |
| IF Rejection | 35 dB or more |
| Front end | Double Variator |
| <General> | |
| Accessory function | Tape monitor Noise filter Loudness control |
| Semiconductor used | Transistor : 32 FET : 1 IC : 1 Diode : 33 pcs |
| Power consumption | 85W (maximum output) 20W (no signal) |
| External dimensions | Width 424x Height 133x Depth 314 mm |
| Weight | 7.5kg |