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 299 (1958 - 1966)

The H. H. Scott 299 is the ultimate in complete stereo amplifiers. Introduced just a year ago, it is now in use in more fine music systems than any other stereo amplifier in the world. it has won praise from many leading high fidelity experts. It eas "check-rated" and recommended by both leading consumer testing organizations. The 299 was selected for display at world expositions like the Moscow fair.

The proven 40 watt stereo amplifier will drive even the most inefficient speaker systems because its special subsonic filter directs all power into the audible music range and its output stage is of extremely conservative design. This fine amplifier gives you a unique combination of exclusive H. H. Scott features, advanced engineering and handsome apperance. If you are planning a truly fine music system the H. H. Scott model 299 complete amplifier is the ideal choice.

299-A (1958 -1960)

Stereo 40-watt Integrated Amplifier 17-wpc (RMS)

Scott's first "Stereomaster" Integrated Amp

"Christmas Tree" tri-function neon indicators, unique to 299-series

Bias control common to both channels

11 tubes:

(4) 12AX7

(2) 6BL8 (floating paraphase inverter w/AC balance pots)

(4) 7189

(1) 5AR4

299-B (1960-1961)

Stereo 50-watt Integrated Amplifier 21-wpc (RMS)

Larger transformers, changed phase splitters

Minor styling changes to knobs, indicators, logo/lettering, double-H, logo, replaced oval logo.

11 tubes:

(4) 12AX7

(2)6U8/6GH8 (floating paraphase inverter w/AC balance pots)

(4) 7189

(1) 5AR4

299-C (1961-1964)

Stereo 72-watt Integrated Amplifier 31-wpc (RMS) or 28-wpc (RMS) smaller transformer versions

Major upgrade for 299-series adapted from the older LK-72 (kit) 7591-design

Added Front-panel Headphone Jack,

More powerful final section center channel volume control some late "C" versions had 233 circuitry and smaller TRA-8-5-4 transformers

11 tubes:

(4) 12AX7

(2) 6U8 or 7199 (Split-load phase inverter)

(4) 7591

(1) 5AR4

299-D (1964-1966)

Stereo 80-watt Integrated Amplifier 34-wpc (RMS)

See 299C above See LK-72-B (kit)

S/N 249780 & up: used 233's output xformers: TRA-8-5-4

Updated, Extruded front panel styling

Minor service-related improvements

used wide "C" case/chassis

11 tubes:

(4) 12AX7

(2) 6U8 or 7199 (Split-load phase inverter)

(4) 7591

(1) 5AR4


Frequency response: 20 - 30,000 Hz (with tone controls set flat)

Total Harmonic Distortion: 0,8% at full power output

IM Distortion: 0,3%

Noise and Hum:

Noise equivalent to 10 microvolts on low level input;

Hum better than 80 dB below full power output

Sensitivity Max.: 3 milivolts for rated output (will accomodate all low output pickups)

Outputs: Stereo Tape Recorder; 4, 8 and 16 ohm speaker output for each channel

Dimensions: 15½" x 5" x 12½" (W x H x D)

2 commenti:

  1. Have a 299 I found at a garage sale, it's missing a tube and the case.
    Also found a dynaco 400 watt amp that weighs a ton and has never been tested. Any takers? jdollinter@aol.com