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





Sherwood S-3000 tuner

FM Tuner

The 5-3000 has been styled and designed primarily as an operating mate for the Sherwood Model 5-1000 amplifier, however it has operating flexibility which will work effectively with practically any good high-fidelity amplifier system.

The Model 5-3000 tuner can be used either in its self-contained metal cabinet (for open-shelf or table-top mounting) or the cabinet can be removed and the tuner built into your custom cabinetry. Refer to section under "Custom-Panel Installation" for further details.

Circuits:

AUDIO - cathode follower with level control.

FM - Low noise balanced antenna input transformer feeding cascode RF amplifier. Triode mixer, 2 IF amplifiers, cascaded limiters, and Foster-Seeley balanced discriminator. Delayed AGC applied to RF stage. AFC on oscillator. Feather-ray tuning eye.

 


Specifications:

Typical Sensitivity:

0,95 µV for 20 dB quieting

1,8 µV for 30 dB quieting

3,6 µV for 50 dB Signal-to-Noise Ratio

Typical Selectivity:  200 kc at -6 dB

FM Discriminator:  600 kc, peak-to-peak

Tuning Range:  87,5 - 108,5 mc

Frequency Response:  20 - 20,000cps ±0,5 dB

Distortion: 

Less than1/3 % Intermodulation DIstortion at 100% mod. (60/kc:4/1 w/std. Preemphasis)

Less than1% harmonic at 100% mod. 400 cps

Hum and Noise Level:  60 dB below 100% mod.

FM Drift:  ±2 kc (w/AFC); ±15 kc (w/o AFC)

AFC Corection: 16 dB

Output:  2,0 Volts at 100% FM

Oscillator Radiation: 6 dB below FCC requirements

Antenna: 300  balanced

Outputs:  cathode-follower audio FM multiplex

Power Consumption:  40 watts, 110 -120 V, 50/60 Hz

Dimensions:  14 x 10,5 x 4 inch

Weight:  16 lbs (shipping)

Nessun commento:

Posta un commento