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





Harman/Kardon Nocturne 330 receiver

AM/FM Stereo Receiver
Illuminated call outs indicate function that is operating
Tape Monitor Switch for instant comparasion of recorded material and original program
Headphone receptacle permits personal listening
Extended frequency response beyond the normal hearting range gives extra realism to the sounds you can hear. Nocturne sound is cleaner more transparent more sharply defined
D'Arsonval movement tuning meter shows when you have tuned to strongest and clearest signal on AM and FM
Stereo in two rooms, separately or at once. Simple front panel switching elminates the complexity and expense of external switching devices
Separate power On/Off switch permits you to turn receiver on and off without upsetting other controls
Contour for low-volume listening. Contour can be switched in or out, at your discretion.

Specifications
Power Output:  90 watts ±1 dB;  70 watts IHF at 4 Ω
Frequency Response:  7 - 50 kHz ±1,5 dB at 1 watt
Hum and Noise:  90 dB
Square Wave Rise Time:  3,5 microseconds
Stability:  Absolutely stable with all types of speakers
Usable FM Sensitivity:  better than 2,7 mV, IHF
Total Harmonic Distortion:  0,5%
Spurious Response Rejection:  75 dB
Image Rejection:  better than 45 dB
Antenna FM:  300 Ω balanced
Power Requirements:  AC  105- 125 Volts at 60 Hz
Dimensions (W x H x D):  15-9/16" x  4-7/32" x 11-5/16"

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