Manufacturer's Specifications
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Amplifier details
Specifications

 
   
Year of manufacture: 1961-1964
Manufactured by: H. H. Scott, Inc., 385 Putnam Avenue, Cambridge, Mass. USA
Price when new (in the USA): $169.95 (kit-set) or $269.95 (wired) with ventilated steel cage
Description: power amplifier
Mono/stereo: stereo
Power output: per channel: 65 watts IHFM, 58 watts RMS
harmonic distortion: 0·5% at full power
Power bandwidth: below 19 cps to above 25,000 cps
Frequency response: flat from 12Hz -60kHz with stable controlled cut-off at both ends
Hum: 90 dB below rated output
Output impedance: terminals for 4, and 16; also 70V output for sound distribution system
Input sensitivity: 1.5V and 2.5V (switchable)
Tubes:

2 x 7199 (split-load phase inverters), 4 x 6550 (output) and 2 x 5AR4 (rectifiers)

Dimensions: 7¼ in. x 11¼ in. x 5¼ in. (184 x 286 x 133 mm)
Weight: 52 lbs (23.6 kg)