POWER FOR THE OUTPUT AMPLIFIER IS SUPPLIED BY THE FIRST TRANSFORMER WINDING 
THROUGH A RECTIFIER AND FILTER. THE AC VOLTAGE IS FIRST RECTIFIED BY BRIDGE 
RECTIFIER BR1, THEN IS FILTERED BY CAPACITOR C2 AND BLEEDER RESISTOR R2 TO 
PRODUCE THE REQUIRED 10 VOLT LEVEL. THE SECOND TRANSFORMER WINDING IS 
CONNECTED TO THE OUTPUT AMPLIFIER CURRENT SOURCE. THE WINDING ALSO SUPPLIES 
POWER TO THE METER AND FRONT PANEL LAMPS, WHICH ARE CONNECTED ACROSS THE 
WINDING AND ARE IN SERIES WITH R1.