Pioneer SX-100T
¥ 74,500 (around 1960 s)
Commentary
Integrated FM amplifier that uses a mesa silicon power transistor.
The tuner section is equipped only with FM with an emphasis on HiFi sound.
The FM tuner section is designed with four Newby stars. It uses a cascode type for high-frequency amplification and a separate excitation type for frequency-conversion, thereby realizing a front end with excellent S/N ratio, selectivity and stability.
The IF amplifier consists of four stages of double-tuning system.
The FM multi-circuit employs a switching method and is equipped with an automatic switching mechanism that automatically selects between stereo and mono FM broadcasts.
When an stereo broadcast transmission is received, you can check it with the stereo indicator.
Equipped with muting circuit, quiet channel selection is possible.
It is equipped with a tuning meter that gives a highly sensitive tuning instruction.
Equipped with a full-scale NAB characteristic equalizer, the tape head output can be directly connected.
In addition, it is equipped with a tape monitor switch that can monitor recorded tapes while recording, and a DIN-compliant one connection recorder / reconnector.
The amplifier uses a single-ended push-pull OTL system with 2SD45, a mesa silicon transistor for high-power Hi-Fi.
The built-in transistor protection circuit consists of an electronic switch and relay that work in a short time of one millionth of a second. There is no need to worry about breakage of the transistor due to accidental short-circuiting of the output terminal or other operational error.
When this protective circuit is activated, a warning lamp lights on the panel to indicate an error.
Equipped with a stereo headphone jack.
Equipped with a Low-High cut filter.
Uses a front panel that has undergone special processing on aluminum light alloy.
Model Rating
| Type | AM/FM multi-integrated stereo amplifier | ||
| Tuner Section | |||
| Circuit system | Cascode amplification front end using Newby star Four externally excited double-tuned IF stages (including one limiter) With Ratio Detection, MUTING Circuit |
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| Receiving band | 76 mhz to 108 mhz | ||
| Intermediate frequency bandwidth | ± 600 kHz (-3dB) | ||
| Practical sensitivity (IHF) | 2 μ V | ||
| Image ratio | 50dB(82MHz) | ||
| Antenna input impedance | 300 Ω Balanced Type | ||
| <FM Multi Section> | |||
| Circuit system | Switching system With Stereo-Mono automatic switching device Stereo indicator SCA Filters |
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| Channel separation | 38 dB or more | ||
| Amplifier Unit | |||
| Circuit system | SEPP-OTL circuit with silicon mesa power transistors | ||
| Music power | 90W (1% distortion, IHF) | ||
| Frequency characteristic | 20 Hz to 20 kHz ± 2 dB | ||
| Output bandwidth | 25 Hz ~ 25 kHz (Constant Distortion Rate 1%, IHF Standard) | ||
| Signal-to-noise ratio (maximum volume, mid-tone, effective power, IHF) | Phono MAG:70dB Aux:72dB |
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| Input terminal | Phono MAG : 2.9mV/45k Ω Phono CER/X-tal : 87mV/100k Ω Tape head : 9mV/130k Ω Aux, Tape playback (Tape monitor) : 225mV/200k Ω |
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| Equalizer | Phono MAG : NF Type Tape head:NAB |
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| Tone control | Bass : + 16 dB ~ -18dB (50 Hz) Treble : + 14 dB ~ -11dB (10 kHz) |
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| Loudness contour | ON-OFF enabled | ||
| Low and High cut filters | ON-OFF enabled | ||
| Output terminal for speaker | 8 Ω ~ 16 Ω (Optimum Load 16 Ω) | ||
| Stereo headphone jack | Always available when the amplifier is operating With Speaker ON/OFF Switch |
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| Tape Rec connector | DIN Standard Tape Recorder Reconnector | ||
| Residual noise | 3.5 mv (16 Ω, Volume Min, Tone Mid Point) | ||
| <General> | |||
| Vacuum tube used |
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| Power supply part | FM front-end : double-wave rectification by silicon diode Non-FM front-end : Double-bridge rectification by silicon diode |
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| Power supply voltage | 100 VAC / 117 V, 50Hz/60Hz | ||
| Power consumption | 206W | ||
| Maximum external dimensions | Width 445x Height 150x Depth 410 mm | ||
| Weight | 15.2kg | ||