TRIO KT-5007
¥ 50,000 (released in 1974)
Commentary
FM/AM tuner equipped with PLL circuit.
A PLL circuit is used in the MPX section to suppress the phase shift between the switching signal and the pilot signal to realize stable separation characteristics over a wide band.
It is equipped with an LC-type carrier leak filter and eliminates beat failure and distortion by using it together with a PLL circuit.
The front end uses an FET and two transistors, and the IF stage uses a two element ceramic filter, IC, and six transistors.
You can adjust the output level from the front panel.
By using a frequency number line 3-row varicon, highly accurate tuning has been achieved.
A push switch is adopted.
A coaxial cable holder is mounted to securely fix the 75 Ω coaxial cable.
Equipped with a function indicator, the operation status can be checked.
It is equipped with a 4 ch DET OUT FM4ch broadcasting.
Equipped with terminals for multi-path waveform observation.
It is equipped with FM muting and MPX filter.
It is a two meter system consisting of a signal meter that can be used as a deviation meter and a tuning meter.
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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) 62 dB (10 μ V) 70 dB (50 μ V) |
| Sensitivity (IHF) | 1.9 μ V |
| Distortion Factor (400 Hz, 100% modulation) | mono:0.2% stereo:0.4% |
| Signal-to-noise ratio (100% modulation, 1 mv input) | mono:70dB stereo:65dB |
| Image ratio | 55dB |
| Selectivity (IHF) | 60dB |
| IF interference ratio | 90dB |
| Harmonic spurious response | 90dB |
| AM suppression ratio | 55dB |
| Capture ratio | 2.0dB |
| Stereo separation | 40dB(400Hz) 35 dB (50 Hz to 10 kHz) |
| Carrier leakage | -60dB |
| Multipath impedance | H : 130k Ω V : 30k Ω |
| Frequency characteristic | 50 Hz ~ 10 kHz + 0 -1.0 dB 20 Hz ~ 15 kHz + 0 -1.5 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 | 40dB |
| <General> | |
| Output Level / Impedance | FM (400 Hz, 100% modulation) : 1.5 V maximum / 1.8k Ω AM (400 Hz, 30% modulation) : 0.15 V maximum / 1.8k 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 |