What is stereo?

There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

H.H. Scott '59

Sony ST 88 (1970)

Tuner Sony ST 88 and Amplifier Sony TA 88 are the system of small size but in order to be a high fidelity system. ST-88 is evolution of the previous model ST 80. Equipped with a LED for confirm of reception in Stereo FM and dual audio output; Normal and High. on the rear panel.


FM Tuner Section

Tuning Range: 87,5 - 108 MHz

Antenna Terminals: 300 Ω (balanced)

Intermediate Frequency: 10,7 MHz

Usable Sensitivity: 2,2 μV (IHF), 1,7 μV (S/N =30 dB)

S/N Ratio: 65 dB (stereo)

Harmonic Distortion:

Mono: 0,5% at 400 Hz , 100% Mod;

Stereo: 0,8% at 400 Hz , 100% Mod.

Separation FM Stereo: greater than 36 dB at 400 Hz

Frequency Response: 30 Hz to 15 kHz, ±2 dB

Selectivity: 50 dB (IHF)

Capture Ratio: 2,5 dB

A-m suppression Ratio: 45 dB

Image Rejection: 45 dB

Spurious Rejection: 75 dB

AM Tuner Section

Tuning Range: 530 - 1,605 kHz

Antenna: built-in bar with external antenna provision

Intermediate Frequency: 455 kHz (USA and AEP Model), 486 kHz (UK Model)

Usable Sensitivity: 48 dB/m (built-in antenna); 100 μV (external antenna).

19 kHz, 38 kHz Suppression: 45 dB

S/N Ratio: 50 dB (50 mV/m)

Image rejection: 40 dB at 1,000 kHz, 45 dB at 1,400 kHz

Harmonic Distortion: 0,8%

I-f rejection: 30 dB (at 1,000 kHz)


Power Requirements: 110, 127, 220 or 240 V ac adjustable 50/60 Hz

Power Consumption: 10 W

Dimensions (W x H x D): 128 x 232 x 210 mm, (5¹⁄₁₆ x 9x 18¼ inches)

Net Weight: 2,7 kg, (5 lb 15 oz)

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