Heathkit IB 101 Schematic

Page 1

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NOTES: [
6. "5 THIS SYMBOL INDICATES CHASSIS GROUND.
l. COMPONENT NUMBERS ARE IN THE FOLLOWING GROUPS;
1-99 PARTS MOUNTED ON THE CIRCUIT BOARD.
100,199 PARTS MOUNTED ON THE CHASSIS. 7. THIS SYMBOL INDICATES A LETTERED CIRCUIT BOARD
CONNECTION.
2. ALL RESISTORS ARE 1/2 WATT UNLESS MARKED OTHERWISE.
RESISTOR VALUES ARE IN OHMS Ik=lDDD. M=1,DOD,DDDI. 8. OTHIS SYMBOL INDICATES A DC VOLTAGE TAKEN WITH
A HIGH IMPEDANCE INPUT VOLTMETER FROM THE POINT
3, ALL RESISTORS ARE 5% UNLESS MARKED OTHERWISE, INDICATED T0 CHASSIS GROUND WITH NO INPUT SIGNAL
TO THE COUNTER.VOLTAGES MAY- VARY 120%.
4. ALL CAPACITOR VALUES LESS THAN 1 ARE IN uF. VALUES OF
1 AND ABOVE ARE IN pF UNLESS MARKED OTHERWISE. 9. *>I VOLTAGE IS .06 VOLTS. WITH THE RANGE SWITCH IN THE
5. V THIS SYMBOL INDICATES CIRCUIT BOARD GROUND. KHZ POSITION, THE VOLTAGE IS .2 VOLTS.

eledron - February I97I

Page 2

HEATH MODEL IB-IOI FREQUENCY COUNTER

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