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 ST-335 MkII tuner

The Toshiba ST-335 MkII is an AM/FM stereo tuner featuring a stereo beacon, a three-position LED FM center channel tuning indicator, a five-step LED signal Strength/ AM tuning indicator, and a record calibration (Rec Cal) tone output for pre-adjustment of the input level to a tape recorder. The record calibration output is 6 dB below (-6 dB) the output level from a 100% modulated FM transmitter. The FM center channel tuning "meter" consists of a two yellow LED s flanking a gree LED; optimum tuning is attained when only the green LED is lit. However, tuning is relatively broad in the 'green range", and distortion and separation values might vary from our measurements. The output is provided by two "patch cords" with phono plugs, approx 1 meter in length.
The FM pilot leakthrough is relatively high and a recorder's MPX filter must be used when making recordings from FM stations. 

Specifications:
Sensitivity (IHF):  2,0 µV (11,2 dBf)
Selectivity:  60 dB
Capture Ratio:  1 dB
Image Rejection Ratio:  50 dB
Spurious Rejection:  70 dB
IF Rejection Ratio (98 MHz):  80 dB
Signal-to-Noise Ratio (IHF)
Mono :  73 dB
Stereo :  65 dB
T.H.D. (1 kHz)
Mono :  0,2%
Stereo :  0,4%
Stereo Separation (1 kHz):  40 dB
FM Frequency Response :  30 Hz - 15 kHz (-1 dB)
Output level:  500 mV
AM Suppresion Ratio:  45 dB
AM Sensitivity:  300 µV/m
Dimensions (W x H x D):  420 x 96 x 257 mm (16,5" x 3,8" x 10,1")
Weight:  3,4 kg (7,5 lbs)

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