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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





Showing posts with label Pilot. Show all posts
Showing posts with label Pilot. Show all posts

Pilot Pilotuner FM-607

The famous FM Pilotuner brought up to date with the latest advances in FM design at an amazing price for a true High Fidelity Tuner. This new Model FM-607 incorporates many features of the most expensive tuners and is built to Pilot's high standard of quality. Enjoy FM at its best with this Pilotuner.

 


General Features

Self-contained power supply for use on 117 volt, 60 cycle AC lines

Slide rule dial with illuminated scale

Audio input for Phono or Auxiliary TV operation controlled by selector switch

Two-stage audio amplifier, cathode follower output, to permit up to 100 feet of interconnecting leads for remote operation of audio amplifier without loss of fidelity.

Self-contained and fully enclosed front panel assembly, beautiful gold-finish completely impervious to fingerprints. Unit may be left open on shelf or table or front escutcheon may be readily dismounted for cabinet installation.

 

Special Features

Built-in power line antenna

2 Gang Condenser Tuning System

Automatic frequency control (AFC) for case in running

One position of selector switch provides for turning off the AFC to allow tuning to a weak station adjacent to a strong station.

Tuned RF Amplifier stage for improved sensitivity and selectivity

Temperature compensated oscillator for negligible drift

Fully shielded against oscillator radiation to conform with FCC radiation specifications

Convenience Outlet, controlled by On-Off Switch

 

Tube Complement

6BA6-RF amplifier

6BA6 - 1st IF amplifier

6AB4 - automatic frequency control

6AL5 = FM Ratio Detector

6U8 - oscillator , mixer

6AU6 - 2nd IF amplifier

12AU7 - Audio amplifier, cathode follower

6X4 - power rectifier

 


Specifications

Frequency Range:  88 to 108 MC

Hum Level: 70 dB (below 1,0 volt)

Maximum Audio Output:  5 Volts

Audio Distortion:  0,2% at 1 V output

Sensitivity:  5 mV for 20 dB quieting

Audio Frequency Response:  20 cps to 20,000 cps   ±0,5 dB

Audio Output Impedance:  500 Ω  cathode follower

Selectivity:  6 dB, down at 200 KC

Ratio Detector Peak to Peak Separation:  320 KC

Ratio Detector Response is Linear for 190 KC

Antenna Input:  300 Ω  Balanced; or built-in line cord antenna

Power Consumption:  50 watts, 117 Volts, 60 cycles

Overall Dimensions (W x H x D):  10-1/2" x 7-3/8" x 7-1/4", behind mounting panel

Shipping Weight:  10 pounds


 

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Pilot Pilotone AA-903 amplifier

 

The AA-903 amplifier

A completely new Amplifier of the Williamson type combining the best features of our popular, low-priced Amplifier and our self-powered Preamplifier. This extremely versatile unit is an excellent companion piece for our famous Pilotuners

 

Features

Self-contained power supply for 117 volt, 60 cycle AC line

Detachable front panel plate for convenient custom installation using up to 3/8" wood panel

Full bass and treble controls with "flat" positions at center settings of control knob

Selector switch to choose signal from any one of 4 playback equalizer

Output Transformer is made with Interleaved Winding for Reduced Leakage Inductance

Supplied with removable rubber feet and thru-chassis mounting screws and washers

Seven position switch selects 1 of 4 input channels and 1 of 4 phono equalizers

Williamson type circuit for use true High Fidelity

Convenience Outlet, controlled by On-Off Switch

Attractive gold finish chassis impervious to fingerprints

 

Specifications

Tube Complement:

12AX7 - preamplifier

12AX7 - Tone Amplifier

6C4 _ Voltage Amplifier

12 AU7 - Amplifier and Phase Inverter

6V6GT - (2) Power Amplifier

5Y 3GT - Rectifier

Power Output:  10 Watts maximum

Sensitivity (For 1 Volt output)

Phono :  10 mV

Radio, Aux I, Aux II :  150 mV

Input Impedance

Radio, Aux I, Aux II :  300 Ω

Phono, :  adjust from 6,800 to 100,000 Ω

Frequency Response:  15 cps to 40,000 cps ± dB at rated output (10 Watts)

Hum Level:  80 dB below 1 Volt

Total Harmonic Distortion

Less than 1% at 10 Watts from 30 cps to 15,000 cps

0,1% at 1 Watt from 30 cps to 15,000 cps

Intermodulation Distortion :  less than 2% at rated output (50 and 7,000 cps : 4 /1)

Output Internal Impedance:  1 Ω  at 8 Ω 

Negative Feedback:  15 dB

Tone Control Range

18 dB Boost /18 dB Cut at 20 cps

11 dB Boost / 11 dB Cut at 100 cps

0 dB Boost  / 0 dB Cut at 800 cps

14 dB Boost / 15 dB Cut at 10,000 cps

18 dB Boost / 18 dB Cut at 20,000 cps

Speaker Output Impedance:  4, 8 and 16 Ω

Power Consumption:  75 Watts, 117 Volts. 60 Cycles

Overall Dimensions (W x H x D):  12" x 7" x 8-3/4"

Shipping Weight:  15 Pounds

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