Heathkit IM 2410 Schematic

Page 1

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SCHEMATIC or THE
HEATHKIT®
MODEL
lM-2410

rnsouzucv COUNTER

NOTES:
1, ALL RESISTOR VALUES ARE IN OHMS: K-I,ODO; M-I,ODD,DOD.
2 ALL RESISTORS ARE 1/4 WATT 5%, UNLESS MARKED OTHERWISEI

1 UNLESS MARKED OTHERWISE, CAPACITOR VALUES GREATER
THAN ONE ARE IN PICOFARADS, AND VALUES LESS THAN ONE
ARE IN MICROFARADSI

4L 2:: THIS SYMBOL INDICATES CHASSIS GROUND.
5 v THIS SYMBOL INDICATES CIRCUIT BOARD GROUND,

6 THIS SYMBOL SHOWS THAT THE INDICATED COMPONENT
IS MOUNTED ON THE CHASSIS.

7L OTHIS SYMBOL INDICATES A DC VOLTAGE TAKEN WITH A
HIGH INPUT IMPEDANCE VOLTMETER BETWEEN THE POINT
INDICATED AND GROUND WITH NO INPUT SIGNAL,
VOLTAGES MAY VARY t25'ln,

II. THIS SYMBOL INDICATES WHICH OF THE WAVEFORMS
SHOWN WILL BE FOUND AT THE INDICATED POINT.
WAVEFORMS ARE TAKEN WHILE ACTUALLV MEASURING
AN INPUT IANV ACCEPTABLE FREQUENCYII

Part of 595~2383-07

Copyright © 1930

Heath Company

All Rights Reserved

ansd in the Uuhsd Slates of Amuica

MAIN CIRCUIT BOARD

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COUNTER WAVEFORMS

1/60 SEC (16.7m5)

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- *1/60 Ih SEC