TRIO KT-3007
¥ 42,000 (released in 1974)
Commentary
An FM/AM tuner developed by inheriting the technology of high-end machines.
The MPX section is composed of a PLL circuit (phase-locked loop). Since no coils are used, it is resistant to temperature and humidity changes.
In addition, excellent separation has been achieved by using an LC-type carrier leak filter in combination.
The front end section consists of a FET and two transistors, and the IF stage consists of a two element ceramic filter, an IC and six transistors.
The volume knob is mounted on the back and the output level can be adjusted.
A holder for attaching 75 Ω coaxial cable is mounted.
Equipped with signal meter and tuning meter.
Equipped with 4 chDET OUT jacks assuming FM4ch broadcasting.
A multi-path waveform observation terminal is mounted.
It is equipped with FM muting and MPX filter.
.JPG)
Model Rating
| Type | FM/AM Tuner |
| FM Tuner Section | |
| Receiving frequency | 76 MHz to 90 MHz |
| Antenna impedance | 300 Ω equilibrium 75 Ω unbalance |
| Chinese arrowhead's slope | 48 dB (3 μ V) 60 dB (10 μ V) 65 dB (50 μ V) |
| Sensitivity (IHF) | 2.0 μ V |
| Distortion Factor (400 Hz, 100% modulation) | mono:0.2% stereo:0.4% |
| Signal-to-noise ratio (100% modulation, 1 mv input) | mono:65dB stereo:60dB |
| Image ratio | 50dB |
| Selectivity (IHF) | 60dB |
| IF interference ratio | 90dB |
| Harmonic spurious response | 90dB |
| AM suppression ratio | 55dB |
| Capture ratio | 2.5dB |
| Stereo separation | 38dB(400Hz) 30 dB (50 Hz to 10 kHz) |
| Carrier leakage | -45dB |
| Multipath impedance | H : 130k Ω V : 30k Ω |
| Frequency characteristic | 50 Hz ~ 10 kHz + 0 -0.5 dB 20 Hz ~ 15 kHz + 0 -2.0 dB |
| <AM Tuner Section> | |
| Receiving frequency | 520 kHz to 1610 kHz |
| Sensitivity | 20 μ V (IHF) 300 μ V/m (bar antenna) |
| Distortion factor | 1% |
| Signal-to-noise ratio (30% modulation, 1 mv input) | 50dB |
| Image ratio | 50dB |
| Selectivity (IHF) | 30dB |
| IF interference ratio | 35dB |
| <General> | |
| Output Level / Impedance | FM (400 Hz, 100% modulation) : 1.5 V maximum / 5k Ω AM (400 Hz, 30% modulation) : 0.15 V maximum / 5k Ω 4 ch DET OUT : 0.15V/30k Ω Multipath output : 0.13 v |
| Power supply voltage | 100 VAC, 50Hz/60Hz |
| Rated power consumption (Electrical Appliance and Material Control Law) | 20W |
| External dimensions | Width 435x Height 157x Depth 300 mm |
| Weight | 8kg |