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NOTE:

REPLACE BIAS RESISTORS (47K 1WATT...WITH 33K or 39K 1watt  , ADJUST FOR 1amp bias) FOR ABOUT >1AMPS BIAS

ADJUST OFFSET TRIMMER  (INPUT SHORT WITH GND) FOR OUTPUT ABOUT 0VDC ON 8OHM LOAD.

TRANSFORMER FOR A STEREO VERSION  : 300VA  , 22-0-22 VAC CENTER TAP

AN C-R-C FILTER IS GOOD FOR A TOTAL (MIN. FOR ACCETTABLE RIPPLE). 40000uf FOR RAIL