TRIO WX-800
¥ 59,900 (released in 1964)
Commentary
A top-of-the-line stereo tri-amplifier using New Vista for FM high-frequency section.
The output section is 7189P. P to achieve 30W + 30W output.
The equalizer amplifier is fully DC ignited to prevent hum induction.
Equipped with a tape head direct input terminal, recording and playback terminal, and a tape monitor device for easy recording and playback.
The FM tuner section uses a 3-row varicon with a 2-stage limiter. The high-efficiency ratio detection system also functions as a limiter.
New Vista is used in the high-frequency section to achieve high sensitivity.
Furthermore, noise is reduced by cascode amplification.
Equipped with FM AFC (Automatic Frequency Stabilizer), the strength of AFC can be continuously variable according to the strength of radio waves.
In order to be able to determine whether FM multi stereo broadcast transmission is being received, it is equipped with an automatic indication device, which indicates that reception is being performed.
The AM tuner section uses a high-frequency amplified 3-row varicon and a ferrite bar antenna for stable reception.
It is equipped with functions such as loudness control, high / low filter, headphone jack and operation indicator pilot lamp.
An SCA filter was installed in order to respond to the start of SCA broadcasting.
Model Rating
| Type | AM/FM Multi-Stereo Tri-Amplifier | ||
| Amplifier Unit | |||
| Output | Music power (1% distortion) : 30W + 30W (60W) Continuous Output (1% Distortion) : 25W + 25W (50W) |
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| Frequency characteristic | 20 Hz ~ 50 kHz ± 1 dB (Output 500 mW) | ||
| Input terminal (output 25W, 1 kHz) | MAG:1.5mV Tape HD:1.4mV Xtal:15mV AUX, Tape Play : 95 mv |
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| Signal-to-noise ratio (Volume Max, Tone Control Flat, 25W output) |
MAC, Tape HD : 55 dB or more AUX, Tape Play : 70 dB or more |
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| Damping factor | 9 | ||
| Residual noise (minimum volume) | 0.6 μ W | ||
| Tone control | 50 Hz : + 11 dB to -10dB 10 kHz : + 11 dB to -10dB |
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| Loudness control (Volume -30dB) | 50 Hz : + 13 dB, 10 kHz : + 5 dB | ||
| Low filter | 50 Hz, -7dB | ||
| High filter | 10 kHz, -7dB | ||
| Equalizer | Records : RIAA Tape : NARTB |
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| Tuner Section | |||
| Receiving frequency | FM : 76 MHz to 90 MHz AM : 535 kHz to 1605 kHz |
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| Sensitivity (30% modulation) | FM : 1.4 μ V/84MHz (S/N 20 dB) AM : 2.0 μ V/1MHz (S/N 10 dB) |
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| Practical sensitivity | FM : 2.2 μ V/84MHz (30% modulation, S/N 30 dB) | ||
| FM antenna input terminal | -30dB at "LOC" ; "DIST" | ||
| Image ratio | FM : 50 dB or more AM : 60 dB or more |
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| FM frequency characteristics | 20 Hz to 20 kHz ± 1 dB or less | ||
| Signal-to-noise ratio | FM : 65 dB or more (100% modulation, 100 μ V input) AM : 45 dB or more (30% modulation, 1 mV input) |
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| FM distortion factor | Not more than 1% | ||
| <FM multi-section> | |||
| Separation | 38 dB or More (400 Hz) | ||
| Distortion factor | 1% or Less (400 Hz) | ||
| <General> | |||
| Accessory circuit | New Vista (6CW4) cascode tuner FM stereo display unit FM AFC Low / High Filter Loudness control Equalizer amplifier DC ignition Tape monitor Stereo headphone jack |
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| Semiconductor used |
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| Pwer | 100 VAC / 117 V, 50Hz/60Hz | ||
| Rated power consumption | 200VA | ||
| External dimensions | Width 450x Height 148x Depth 350 mm | ||
| Weight | 16kg | ||