AM/FM Stereo Tuner (1971-74)
The Sony ST-5130 incorporates the most advanced techniques in FM tuner technology and full utilization of the available devices.
The MOS FET's, other all silicon transistors, and solid-state filters employed in the ST-5130 are specially designed to bring out the utmost in the tuner.
Sensitivity, interference rejection, and other vital factors which affect the quality of a tuner are greatly determined by the characteristics of the front end. The front end of the ST-5130 has MOS FET's in the mixer and r.f. stages, thus it achieves exceptionally high sensitivity, overload capability, image rejection, superior cross-modulation rejection, and low internal noise.
It delivers clean audio output even if the unit is operated near a powerful transmitter, or receives very weak stations in distant fringe areas.
The FM i.f. section has eight solid-state filters (which are permanently-aligned ceramic filters) to contribute to the tuner's selectivity and long-term stability. The solid-state filters permit reception of weak signals without interference from strong adjacent stations.
The AM tuner employs high performance transistors to maintain high sensitivity with superior signal-to-noise ratio. Its excellent linearity and dynamic range assure low distortion at any strength signal. AM programs will be received with an audio quality that will surprise Hi-Fi oriented ears.
The ST-5130 also offers you the newest development in tuner design - the Impulse Noise Suppressor. Conventional tuners, even those of high quality, are inevitably affected by impulse-noise caused by ignition, fluorescent lights, generators, or motors. When impulse noise occurs, the amplitude of the desired input signal is disturbed by the impulse.
If the impulse is too strong to be removed by the limiter characteristic of the tuner, the impulse remains audible. In the SONY INS system, the pulse discriminator is activated when the noise pulse occurs, and cuts the disturbed signals momentarily. The pulse begins and ends within so short a time that the human ear does notice the " hole" in the sound, and hears the program clearly. This system is especially effective in FM recording.
Type: Mono/Stereo Tuner
Tuning Bands: FM, MW
Tuning Scale: Analogue
FM Tuning Range: 87.5 to 108 MHz
MW Tuning Range: 530 to 1605 kHz
Sensitivity: 1.5uV (FM), 455uV (MW)
Signal to Noise Ratio: 75dB (FM), 50dB (MW)
Distortion: 0.3% (FM), 0.6% (MW)
Selectivity: 100dB (FM)
Frequency response: 20Hz to 15kHz (FM)
Semiconductors: 9 x FET, 48 x transistors, 41 x diodes
Dimensions: 400 x 149 x 344mm
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