Heathkit IG 4505 Schematic

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OSCILLOSCOPE CALIBRATOFI 4. CIRCUII COMPONENT NUMBERS ARE II'
MODEL «3-4505 GRUUPS=
1- 99 PARTS ON THE CIRCUIT BE
101-199 PARTS ON THE CHASSIS.
NUIES:
5. INDICATES A LETTERED WI
1. RESISTOR VALUES ARE IN OHMS [K4001], M=l,000.0001. ON THE cmcmr BOARD.
2. ALL CAPACITOR VALUES LARGER THAN 1.0 ARE IN pF UNLESS 6, - INDICAFES CHASSIS GROU

OTHERWISE SPECIFIED. CAPACITOR VALUES LESS THAN 1.0 2
ARE IN OF. 7. V INDICATES CIRCUIT BOAR
3. REFER TO THE CIRCUIT BOARD x-RAY VIEWS FOR THE 3. O INDICATE A DC VOLTAGE T.

PHYSICAL LOCATION OF PARTS; POTNT INDICATED To GROL

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UMBERS ARE IN THE FOLLOWING

HE CIRCUIT BOARD.
HE CHASSIS

A LETTERED WIRE CONNECTION
SUIT BOARD.

CHASSIS GROUND.

CIRCUIT BOARD GROUND

DC VOLTAGE TAKEN FROM THE
IATED T0 GROUND.

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