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





Pioneer TX 608 (1979)


FM SECTION
Usable Sensitivity MONO: 10,8 dBf (1,9 μV)
50 dB Quieting Sensitivity: MONO: 15 dBf; STEREO: 38dBf
Signal-to-Noise Ratio at 65 dBf: MONO: 80dB; STEREO: 74 dB
Distortion at 65 dBf MONO:
100 Hz: 0.1%
1 kHz: 0.1%
6 kHz: 0.15%
Distortion at 65 dBf STEREO:
100 Hz: 0.2%
1 kHz: 0.2%
6 kHz: 0.25%
Capture Ratio: 1.0 dB
Alternate Channel Selectivity: 60 dB
Stereo Separetion: 1 kHz: 40 dB; 30 Hz to 15 kHz: 35 dB
Frequency Response: 20 Hz to 15 kHz (-1.0/+0.5 dB)
Spurious Response Ratio: 70 dB
Image Response Ratio: 60 dB
IF Response Ratio: 80 dB
AM Suppression Ratio: 55 dB
Subcarrier Product Ratio: 50 dB
Multing Threshold: 17.2 dBf (4.0 μV)
De-Emphasis Switch (Switchable): 25 μs - 75 μs
Antenna Input: 300 ohms balanced; 75 ohms unbalanced

AM SECTION
Sensitivity
IHF, ferrite antenna: 300μV/m
IHF, external antenna: 15μ
Selectivity: 35 dB
Signal-to-Noise Ratio: 50 dB
Image Response Ratio: 40 dB
IF Response Ratio: 70 dB
Antenna: Built in Ferrite Antenna

AUDIO SECTION
Output Level: 650 mV/ 4,3 kΩ (FM 100% MOD:)
SEMICONDUCTORS
ICs: 3
FET: 1
Transistors: 8
Diodes: 15
MISCELLANEOUS
Power Requirements: 110 - 220 V, 50/60 Hz
Power Consumption: 14 W
Dimensions (W x H xD): 430 x 151 x 284 mm, (17¾ x 5¹⁵/₁₆ x 11³/₁₆)
Weight (Without Package): 5,3 kg, (11 lb 11 oz)


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