Heathkit IM-4100 - Page 52

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IMPORTANT

WAVE

SHAPES

This

section

shows

wave

shapes

that

should

be

present

at

various

points

in

your

Frequency

Counter.

The

wave

shapes

are

line

drawings

of

photographs

of

the

graticule

on

an

oscilloscope.

A

low

capacitance

X10

probe

was

used

and

the

oscilloscope

was

set

for

.1

volt-per-division.

The

time

base

is

indicated

for

each

drawing.

Use

the

MHz

position

of

the

POWER/TIME

BASE

switch.

All

wave

shapes

are

approximately

3.5

to

4.5

volts.

The

bottom

horizontal

lines

of

the

wave

shapes

represent

approximately

0

to

.4

volt.

1C3,4,5,6,

7;

Pin

2

1C26;

Pin

3

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.5

wSEC/DIV

50

uSEC/DIV

RESER

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OSCILLATOR

O6;

Collector

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IC2;

Pin

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pSEC/DIV

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mSEC/DIV

TRANSFER

PULSE

GATED

SIGNAL