974-75 YAMAHA CT-600 NATURAL SOUND AM/FM STEREO TUNER - TESTED

1974-75 YAMAHA CT-600 NATURAL SOUND AM/FM STEREO TUNER - TESTED GOOD CONDITION SOLD YAMAHA NATURAL SOUND AMPLIFIER CA-810 YAMAHA NATURAL SOUND TUNER CT-600 AM/FM stereo tuner with low distortion factor and high separation achieved by the original MPX circuit The FM front-end section utilizes two dual-gate MOS FETs with low noise and excellent high-frequency characteristics in both the FM RF stage and mixer stage to enhance cross-modulation, image interference ratio, and spurious interference ratio. A frequency number line type precision four series varicon is used for the tuning circuit. The IF stage is designed with an emphasis on phase characteristics along with the front end. The circuit configuration that also includes circuit elements such as ICs and 4-element ceramic filters realizes high stability and excellent limiter characteristics. The MPX circuit uses a high-precision IC to achieve a low distortion factor, and an LC-type low-pass filter sharply cuts unwanted residual signals such as carrier leakage. By adopting a unique circuit in which the AFC is automatically turned off when the tuning knob is touched at the time of channel selection, and the AFC is turned on when the knob is released after synchronization with the receiving station. This circuit enables accurate reception from stations with strong to weak radio waves. In addition, the AFC/STATION indicator lights faintly in the area where the station is located, and lights brightly when the AFC is turned on to indicate correct operation. The signal meter is equipped with an AGC, and the pointer is moved linearly from a weak electric field to a strong electric field. It also has a tuning meter. The AM tuner section is composed of a triple-tune system with a tuning circuit consisting of a triple varicon, ceramic filter, and two tuning coils. By improving the selectivity and image interference ratio, AM broadcasting is easily received, and sound quality is improved. A dedicated AGC circuit is also provided to enable clear reception even when strong input is applied. It is equipped with a multi-path detection terminal, an FM muting switch, a high-blend filter that blends high frequencies to reduce noise, two fixed and variable output terminals, and an IF output terminal for 4-channel broadcasting. Type: Mono/Stereo Tuner Tuning Bands: FM, MW Tuning Scale: Analogue FM Tuning Range: 88 to 108 MHz MW Tuning Range: 525 to 1605 kHz Sensitivity: 1.8uV (FM) Signal to Noise Ratio: 71dB (FM), 50dB (MW) Distortion: 0.8% (FM), 0.6% (MW) Selectivity: 75dB (FM), 25dB (MW) Frequency response: 20Hz to 15kHz (FM) Output: 500mV (FM), 125mV (MW) Semiconductors: 22 x transistors, 3 x IC, 1 x FET, 10 x diodes Dimensions: 435 x 160 x 349mm Weight: 6kg PLEASE SEE THE PICTURES FOR A DETAILED DESCRIPTION IF YOU HAVE ANY QUESTIONS, PLEASE FEEL FREE TO CONTACT ME