TRIO KT-7X
¥ 47,000 (released in 1982)
Commentary
FM/AM tuner with built-in Route 3 timer.
Equipped with Route 3 timer by microcomputer, sleep timer, once timer and every timer can be selected.
When the sleep timer is set, the power is turned off after 60 minutes.
Timer playback is also available with the Once Timer. To set the timer, press the Adjust key while pressing the One Ski key, adjust the time, and press the time key. The LED lights up to enter the standby state.
With the Every Timer, you can turn the power on at the same time every day. To set the time, press the Adjust key while holding down the Every key, and set it with the Timer key.
It can be used as a 2-hour timer by combining the once-timer and every-timer, or the sleep-timer and every-timer.
The front end section has a MOS FET with excellent high-frequency characteristics and an electronic circuit equivalent to a four link varicon, making it strong against cross modulation.
A pulse swallow type quartz pLL synthesizer system is adopted, and the desired station can be securely caught with quartz accuracy.
It is equipped with an auto-preset function. If you press the AUTO key while holding down the preset key, you can automatically store six FM and AM stations, ranging from low-frequency to high-frequency stations.
Equipped with a memory function for 6 stations each for FM and AM.
The reception frequency and time can be displayed.
The RF stage of the AM tuner uses high-quality J-FET amplification for high sensitivity, and the IF section uses a wide-band ceramic filter.
Model Rating
| Type | FM/AM Tuner | ||
| FM Tuner Section | |||
| Receiving frequency range | 76 MHz to 90 MHz | ||
| Antenna impedance | 75 Ω unbalance | ||
| Sensitivity (75 Ω) | 10.8 dBf (New IHF) / 0.95 μ V (IHF) | ||
| SN ratio 50 dB sensitivity | Mono : 16.4 dBf (new IHF) / 1.8 μ V (IHF) Stereo : 38.4 dBf (new IHF) / 23 μ V (IHF) |
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| Distortion factor |
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| SN ratio (100% modulation, 85 dBf input) | mono:80dB stereo:74dB |
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| Selectivity (IHF) | 60dB | ||
| Stereo separation | 50dB(1kHz) 40 dB (50 Hz to 10 kHz) |
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| Frequency characteristic | 30 Hz to 15 kHz + 0.2 -1.0 dB | ||
| <AM Tuner Section> | |||
| Receiving frequency range | 522 kHz to 1,611 kHz | ||
| Sensitivity | 10 μ V (IHF) 300 μ V/m (loop antenna) |
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| Distortion Factor (1000 kHz) | 0.5% | ||
| Signal-to-noise ratio (30% modulation, 1 mv input) | 52dB | ||
| Selectivity (IHF) | 30dB | ||
| <General> | |||
| Output Level / Impedance | FM (1 kHz, 100% modulation) : 0.75V/3.3k Ω AM (400 Hz, 30% modulation) : 0.25V/3.3k Ω |
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| Power supply voltage | 100 VAC, 50Hz/60Hz | ||
| Rated power consumption (Electrical Appliance and Material Control Law) | 9.8W | ||
| Maximum external dimensions | Width 440x Height 74x Depth 324 mm | ||
| Weight | 4.0kg | ||