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





H.H. Scott Stereomaster Type 399

H.H. Scott type 399 stereo tuner-amplifier

Years; 1960 - 1962; Cost new: $399

Configuration, RMS rating; AM/FM-Mono "Simulcast Stereo",

Tuner combined with (stereo) amp, 18-wpc

Tech notes;
The 399 was Scott's first receiver to incorporate a complete amplifier. Once again, the type number was curiously the same as the price, just like the original Type 99. Combines a 7189-based (299-B) complete stereo amp and a 330-D AM/FM-mono tuner, on one tall "G" chassis.
Uses two (AM & FM); "Magic-eye" 6BR5/EM80 signal-strength indicator tubes.
23 tubes:
11-tube, Amplifier section: (4) 12AX7 - preamps; (2) 6U8/6GH8(floating paraphase inverter w/AC balance pots); (4) 7189 outputs; (1) 5AR4/GZ34 rectifier
6-tube,
FM Tuner (311-design) section: (1) 6BS8/6BQ7; (1) 6U8; (3) 6AU6; (1) 6BR5/EM80
FM tuning eye 6-tube,
AM Tuner section:(1) 6BA6; (1) 6BE6;(2) 6HS6;(1) 6BR5/EM80
AM tuning eye (1) 12AU7

Weight: 37 lbs.

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