Heathkit IO 10 Manual 3

Page 1

Assembly
and
Operation
of the

HEATHKIT

D C
OSCILLOSCOPE

MODEL [0-10

HEATH COMPANY
BENTON HARBOR,
MICHIGAN 49022

TABLE OF CONTENTS

SpecificationS....................

Introduction. . ...............
Circuit Description. . . . . . . . . . . .
Construction Notes. . . . . . . . . . . .
Parts List. .................
Proper Soldering TechniqueS. . . . . o
Step-By-Step Procedure. . . . . . . . .
Step-By-Step Assembly. . . . . . . . . .
Test And Adjustment. . . . .. . . . . . .
Operation....................
Applications. . . . . .... . . . . . . . . .
Suggested Reading. . . . .. .. . . . . . .
In Case OfDifficulty. . . . .. . . . . . .
Troubleshooting Chart. . . . . ... . . .
Replacement Parts Price List. . . . .

Schematic. . .(fold-out from Page). .

Factory Repair Service. . . . . . . .

10
36
39
40
40
40
41
42
43

44

The Heath Company reserves the right to
discontinue instruments and to change speci-
fications at any time without incurring any
obligation to incorporate new features ininstru-

ments previously sold.

Page 2

Page 2

SPECIFICATIONS

VERTICAL AND HORIZONTAL CHANNELS
(Identical) '

Bandw1dth
Sensitivityz....................
Attenuator:....................
GainControl:...................
mputlmpedance:.................

Couplingz......................

Centering:.....................

Polarity:......................

Relative Phase Shift Between Channels;

SWEEP GENERATOR

RecurrentType:................

SyncProvision52................

Frequency Coveragez. . . . . . . . . . . . .

Blanking

GENERAL

CRTubet.....................

PowerSuppliesz.................

DC to 200 kc (2 db point).

.1 V (peak to peak) per 1/4" (uncalibrated).
3-position, compensated type.

Continuously variable.

3.6 megohms shunted by 35 uuf.

Either AC or DC, selected with the input
attenuator switch.

Any portion of a 2" x Z" trace maybe posi-
tioned on any portion of the CR tube screen.

A positive signal applied to the vertical chan-
nel will deflect the beam up; apositive signal
applied to the horizontal channel will deflect
the beam to the left.

Less than 5 degrees.

Linear saw-tooth produced by multivibrator type
generator.

Either internal or external sync may be switch
selected. The sync level is automatically main-
tained over a range of 1/4" to 2" vertical trace
height.

From 5 cps to 50 kc in four overlapping ranges.
Lower sweep rates may be obtained by adding
capacity to the "External Capacity" bindingpost
on the front panel.

The retrace (or flyback) cycle is blanked in con-
junction with the internal sweep generator.

Type 3RP1, medium persistence, green trace.

Transformer operated, fused. The B+ supply
uses 2. 6X4 tube as a full-wave rectifier. The
high voltage supply uses a 1V2 tube and the bias
supply uses a silicon rectifier in half-wave
circuits. Critical voltages are regulated with
VB tubes.