Heathkit GD 600 Schematic
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Extracted text from Heathkit GD 600 Schematic (Ocr-read)
Page 1
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'CIRCUIT BOARD:
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SCHEMATIC or THE 1. RESISTORS ARE 1/2 WATT UNLESS MARKED OTHERWISE.
HEATHK'T'E 2. RESISTOR VALUES ARE IN OHMS IR=1000. M=I.000,000I.
PHOTOELECTRIC 3. CAPACITOR VALUES ARE IN MICROFARADS.
L'GHT SWITCH THIS SYMBOL INDICATES A DC VOLTAGE MEASUREMENT TAKEN WITH AN
MODEL 60-600 11 MEGOHM INPUT VACUUM TUBE VOLTMETER (THROUGH AN ISOLATION
TRANSFORMER), 0R EQUIVALENT.
b
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THE ARROW 0N CONTROL INDICATES CLOCKWISE ROTATION OF THE CONTROL SHAFT.
6. * VOLTAGES MEASURED WHEN LDRl IS DARKENED AND SHAFT OF CONTROL
R3 IS TURNED MAXIMUM CLOCKWISE.