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





Teac A-20

 The Teac Model A-20 Stereo Cassette Tape Deck provides high-fidelity, full-size tape-deck performance with cassette convenience. Two precision heads, an outer rotor motor drive system, and a new directional stereo microphone assure high-quality performance.
 Features
Two precision heads - for wide range and excellent sound reproduction
Hysteresis synchronous motor - for efficient drive system and stable tape travel.
Easy installation of tape cartridge - in pop-up housing which is opened when Stop button is pressed.
Dual VU meter - with good linearity for monitoring record levels.
New unidirectional stereo microphone - for easy use when making a stereo recording.
Pause button - for short interruptions during operation.
All sislicon-transistor amplifier - for reliability and long life.
Compact design - with conveniently placed controls for ease of operation.
Headphone monitoring - with 8 Ω headphones; monitoring can also be accomplished during recording.

Specifications
Heads:  Two, 4-track, 2-channel stereo
Tape Type:  C-60, C-90 or C-120 cassette
Tape Speed:  1-7/8 ips
Wow and Flutter:  less than 0,2%
Fast Winding Time:  approx. 70 seconds for type C-60 cassette
Frequency Response:  60 - 10,000 Hz
Signal-to-Noise Ratio:  45 dB
Inputs: 
Line :  0,1 V / 120 k Ω
Microphone :  0,3 mV / 600 Ω
Outputs:
Line :  0,5 V/ 50 k Ω
Headphone :  0,1 mW / 8 Ω (DIN connector)
Unidirectional Stereo Microphone:  one supplied
Power Requirements/Consumptions:  115 V ACX, 60 Hz / 20 W nominal
Dimensions (W x H x D):  9 ¾" x 4 ¼" x 10"

Weight:  10 lbs

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