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Professional Specifications .................... 3
Description ............................................ 4
........................................... 4
Connections............................................. 4
Assembly Instructions............................. 6
Mechanical Assembly ........................ 7
Wiring the Output Stage ..................... 9
Wiring PC-44 and Control Bracket . . .15
Final Assembly.....................................16
Power Output:
Power Response:
Frequency Response:
Intermodulation Distortion:
Hum and Noise:
Input:
Damping Factor:
Output Impedance:
Consumption:
Tube Complement:
Fuses:
Meter:
Finish:
Size:
Weight:
CONTENTS
Schematic .............................................. 12
Initial Adjustment-Biaset ................... 18
Output Meter Reading ......................... 18
In Case of Difficulty .................................19
Voltages and PC-44 Board Layout ........... 20
International AC Line Connections ......... 21
Parts List .................................................23
PROFESSIONAL SPECIFICATIONS
120 watts continuous.
20 Hz to 15 kHz within 1 dB of 120 watts with less than
1% total harmonic distortion.
+0, -1 dB, 10 Hz to 40 kHz @ 1 watt.
1% or less at rated power using 60 Hz and 7000 Hz
Mixed 4:1. Distortion reduces at lower power levels.
Greater than 95 dB below rated output.
50,000-ohm load; unbalanced line.
1.6 volts for 120 watts.
14 at 16 ohms; 1 kHz.
4, 8 and 16 ohms. Power
250 watts.
8417 (4); 7199; silicon rectifiers; time delay relay
5 amp AC line; speaker.
Switchable for 3 output ranges and for output tube bias.
Satin charcoal 1/
" steel front panel and
8
electrostatically applied black epoxy coated 16 gauge
steel chassis.
1
3
19" x 10
/
" x 8
/
" high; add 1
2
4
55 lbs. (25 kg.)
.............................. 13
1
/
" for handles.
2
3
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