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 386 receiver

 Featuring such sophisticated technological advances as electronic circuit protection and electronically regulated power supply, the new Scott 386 AM/FM stereo receiver is a new landmark in the field of audio engineering. High usable power and carefully considered design make the 386 the only choice for the experienced audiophile.
Scott guarantees at least this level of amplifier performance - Massive power transformer and Full Complementary Output circuitry give maximum undistorted power at all audible frequencies.
Instant-acting electronic overload protection - Unlike conventional thermal cutouts, Scott's new protective circuit releases the drive when too much current flows through the output transistors. A circuit-breaker will also trip under prolonged short circuit conditions at high power. There are no fuses to burn out.
Ultra-reliable space-age circuitry - Permanently aligned quartz crystal filter IF, FM amplifier, and four Integrated Circuits (including Perfectune logic module) are included in this small area.
AM reception virtually indistinguishable from FM - New Integrated Circuit AM front end features pre-tuned multi-pole filter for optimum AM fidelity.
Instant-information panel indicator lights - let you know at a glance whether you're receiving AM or FM, stereo or monaural broadcast, Scott Perfectune indicator tells when you're perfectly tuned for best reception.
New connection techniques eliminate solder joint failures - Wire-wrap terminal connections plus plug-in module construction result in the kind of reliability associated with aerospace applications.
Other features:
New illuminated dial results in increased visibility
New muting circuit eliminates noise between FM stations
Plug-in speaker connectors eliminate phasing problems
Silver-plated Field Effect Transistor front end receives more stations more clearly with less distortion
Integrated Circuit IF strip virtually eliminates all outside interference
Integrated Circuit preamplifier reduces distortion to inaudible levels
Full Complementary direct coupled all-silicon output circuitry provides effortless instantaneous power, with maximum reliability
Automatic stereo switching instantly switches itself to stereo operation
Specifications:
Power:  170 watts ±1 dB, IHF power spec. (at 0,8% T.H.D. both channel driven)
Dynamic Power:  67,5 watts/channel (at 4 Ω)
Continuous Power:  42 watts/channel (at 4 Ω);  35 watts/channel (at 8 Ω)
Frequency Response:  20 - 20,000 Hz ±1 dB
Selectivity:  40 dB
Hum and Noise (Phono):  -65 dB
Cross Modulation Rejection:  80 dB
Usable Sensitivity:  1,9 µV
Tuner Stereo Separation:  40 dB
FM IF Limiting Stages:  9
Capture Ratio:  2,5 dB
Signal-to-Noise Ratio:  65 dB
Input Phono Sensitivity:  3,6 mV
Dimensions (W x H x D):  17-1/2" x 5-1/2" x 15-3/4"
Weight:  20 lbs

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