Yamaha CT-7000 FM Tuner

The CT-7000: distortion characteristics so negligible even the most sensitive testing equipment can't measure them.
Gone are the days when the FM tuner was the weak link in a top-of-the-line stereo system. With the CT-7000 Yamaha gives you clear, distortion-free FM stereo response that measures up to (and probably surpasses!) every other part of your stereo system. Even if you don't fully understand the technical details of this radically new design you can hear the difference-because the CT-7000 provides studio-like FM stereo even in the most difficult reception areas, with the lowest distortion of any tuner in the world.

Negative Feedback Switching in FM Stereo Decoder Circuit
Widely used in amplifiers for lower distortion and better linearity (same response from bass through treble frequencies), the negative feedback technology in the CT-7000 multiplex circuit is the world's first.
This design also prevents intermodulation beat interference, as well as interference from the SCA band. That let us do away with distortion-causing special SCA filters.
The result: distortion so low we can't even measure it. The most we can tell you is that at 400 Hz, for example, MPX distortion is an incredibly low 0.02% - and even that figure includes the distortion introduced by the measuring instrument itself.

Phase Lock Loop Type MPX Decoder
The PLL circuit in the MPX decoder locks onto the phase of the 38 kHz sub-carrier and the 19 kHz pilot signal for better phase accuracy, clearer stereo channel separation and lower distortion.
It also eliminates the LC type tuning circuit, resulting in better stability despite temperature fluctuations and ageing.

FM IF Stage: Seven-Stage Differential Amplification, Ceramic Block Filter, Discriminator Circuit
Selectivity (the ability to pick a desired signal and reject others on the same frequency band) is usually gained at the expense of higher distortion. But the CT-7000 uses the world's first block of ceramic and LC filters to raise selectivity and cut distortion at the same time.
Complemented by a new linear phase minimum differential gain deviation discriminator with high-frequency transistor drive, this section boasts unmeasurably low distortion, in spite of over 85 dB alternate channel selectivity and within 1.0 dB capture radio.
Another reason why the CT-7000 assures brilliant stereo response in any signal area.

Front End: Dual-Gate MOS Type FET and World's First 7-Gang Tuning Capacitor
A radical new Yamaha design that means excellent sensitivity (ability to receive weak signals), plus amazing IF interference rejection and 120 dB (IHF) spurious signal rejection-characteristics so outstanding that they exceeded test instrument capabilities.
To make the most of this breakthrough, the CT-7000 mixer stage is completely redesigned, providing immunity to overload, oscillator pulling and intermodulation distortion in high signal strength areas - even up to an astounding 140 dB antenna input signal (nearly ten times stronger than normal). That means the same steady, sure reception even if you live practically next door to a strong FM station.

Ultra-Effective Low Pass Filter
Another Yamaha breakthrough. Its all-new design assures almost complete elimination of switching and carrier signals from the output for clear, undistorted response throughout the whole frequency range.

Auto High-Blend Circuit
Blending the stereo channel signals in the high frequencies only can reduce noise accompanying a weak signal without completely destroying the stereo effect. This circuit works in two stages, depending upon signal strength, automatically blending the required amount of high-frequency stereo.

Double FM Muting Circuit
One stage at the MPX input section, another at the output side. This eliminates interstation noise and also cuts shock noise when a station is reached, or when the CT-7000 is switched on or off. The muting effect is continuously variable, to match the reception area.

Two Meters, Three Functions
The signal strength meter has an extra-wide range to show up to 100 dB antenna input with no peak-out.
Flick the selector switch and it becomes a signal minus multi path meter - it shows how "clean" the received signal is, for precise antenna positioning.
The centre tuning meter helps you tune right on the station.

Unique Yamaha Auto-Touch Tuning
When you touch the knob a special circuit shuts off the AFC. Then, when the station is tuned, release the knob and the AFC comes on automatically.

AFC Station Indicator
Tune across the dial and the lamp will glow softly in the area of an FM station. Once you have tuned in and released the knob, the lamp will glow brightly to show that the AFC circuit is operating.

Sophisticated Low-Distortion OTL Headphone Amp

Connectors for 300 Ω Feeder and 75 Ω Coaxial Cable

Top-Performance Low-Distortion Audio Amp

Output Level Control

Slide Rule Dial/Pointer System
With switchable dial illumination.

Type: Mono/Stereo Tuner
Tuning Bands: FM
Tuning Scale: Analogue
FM Tuning Range: 88 to 108 MHz
Sensitivity: 1.6 μV (FM)
Signal to Noise Ratio: 75 dB (FM)
Distortion: 0.2% (FM)
Selectivity: 80 dB (FM)
Frequency response: 30 Hz to 15 kHz (FM)
Output: 775 mV
Semiconductors: 108 x transistors, 12 x FET, 7 x IC, 33 x diodes
Dimensions: 436 (W) x 352 (D) x 144 (H) mm
Weight: 13.0 kg

Turnaround

Orders will usually dispatched within 2 working days of receiving cleared payment.

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