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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





Toshiba SA-500 receiver

Stereo Receiver Toshiba SA-500 Features:

2-channel FM/AM/FM stereo receiver

Pure-complementary symmetry circuit, OCL output section with balanced two power supply circuit

Coupling condenserless main amplifier

ICs for IF, equalizer and tone control amplifier circuit to assure uniformity of performance between the set

4-gang linear scale tuning condenser for FM

Equalization amplifier for condenser cartridge

MFR tone control with switch-selected hinge points

2 FET's at FM front end

Wood cabinet

 


Specifications

Tuner Section

FM Tuning Range:  88 - 108 MHz

Sensitivity:  1,8 µV 300 Ω  (IHF)

Signal-to-Noise Ratio:  66 dB

Capture Ratio:  1,5 dB (IHF)

Selectivity:  80 dB

Image Rejection:  80 dB

IF Rejection:  80 dB

Spurious Rejection:  100 dB

AM Suppression:  50 dB (IHF)

Frequency Response:  20 - 15,000 Hz ±1 dB

T.H.D.

Mono :  0,2% at 400 Hz, 100% modulation

Stereo :  0,5% at 400 Hz, 100% modulation

FM Stereo Separation:  35 dB at 1,000 Hz

19 kHz, 38 kHz Suppression:  50 db

SCA Rejection:  50 dB

Antenna Terminals:  300 Ω  / 75 Ω 

AM Tuning Range:  530 - 1605 kHz

Sensitivity:  15 µV (IHF)

Signal-to-Noise Ratio:  45 dB

Image Rejection:  70 dB

Selectivity:  30 dB (+10 kHz)

IF Rejection:  70 dB

Over Load:  126 dB (µV) at 1,000 kHz

Total Harmonic Distortion:  1%

Antenna:  Ferrite core antenna, external antenna terminals

Audio Section

Total Music Power (0,4%) :  30 W (4 Ω ); 90 W (each channel driven at 8 Ω )

Total Continuous Power (0,4%) :  70 W (each channel driven at 8 Ω );

Total Harmonic Distortion:  0,4% (at rated or less output)

Frequency Response:  20 - 40,000 Hz ±1 dB (Aux, Input)

Power Bandwidth:  8 - 80,000 Hz (IHF, 0,4%)

Signal-to-Noise Ratio

Phono :  65 dB

Aux :  75 dB

Input Sensitivity/Impedance (for rated output)

Phono :  2,5 mV/47 k Ω (CC 40 mV/70 k Ω )

Tape Play :  150 mV/100 k Ω 

Aux :  150 mV/100 k Ω

Damping Factor:  20 at 8 hm

Tone Controls:

Bass :  ±10 dB at 100 Hz

Treble :  ±10 dB at 10 kHz

Loudness:  +10 dB at 100 Hz, +4 dB at 10 kHz

Residual Noise:  0,8 mV at 8 Ω 

Speaker Impedance:  from 4 Ω  to 16 Ω 

General Section

Controls:  Volume, bass, treble, balance, selector AM/FM-mono / FM-auto / Phono MAG-CC / Aux; Mode Rev/Stereo/L/R/L+R' FM muting, Tape monitor, AFC, 2-ch/4-ch, Loudness, MFR, Tuning

Connector :  13 PIN jack, 2-speaker terminal, 2-AC outlet; DIN connector,  FM-AM antenna connection, headphone jack

Indicator:  FM-ST indicator, FM/AM tuning meter

Semiconductors:  3 ICs; 5 FET, 51 Transistors; 29 Diodes

Power Requirements:  AC 100/120/220/240 V, 50/60 Hz

Cabinet:  natural walnut  cabinet

Dimensions (W x H x D):  450 x 125 x 356 mm (17-5/8" x 4-7/8" x 14")

Weight:  9,5 kg (21 lbs)


 

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