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PARTS IDENTIFICATION

Switch 12 Position

9mm Nut

Alligator Clip

Switch PC Mount

Capacitor

Washer

PC Board

IDENTIFYING CAPACITOR VALUES

Capacitors will be identified by their capacitance value in pF (picofarads), nF (nanofarads), or 

μ

F (microfarads).  Most

capacitors will have their actual value printed on them.  Some capacitors may have their value printed in the following
manner.  The maximum operating voltage may also be printed on the capacitor.

Second Digit

First Digit

Multiplier

Tolerance

The letter M indicates a
tolerance of +20%

The letter K indicates a
tolerance of +10%

The letter J indicates a
tolerance of +5%

For  the  No.

0

1

2

3

4

5

8

9

Multiply By

1

10

100

1k

10k 100k .01

0.1

Multiplier

Note:  The letter “R” may
be used at times to
signify a decimal point;
as in 3R3 = 3.3

103K

100V

Maximum
Working Voltage

The value is 10 x 1,000 = 10,000pF or .01

μ

F  100V

10

μ

F 16V

METRIC UNITS AND CONVERSIONS

Abbreviation

Means

Multiply Unit By

Or

p

Pico

.000000000001

10

-12

n

nano

.000000001

10

-9

μ

micro

.000001

10

-6

m

milli

.001

10

-3

unit

1

10

0

k

kilo

1,000

10

3

M

mega

1,000,000

10

6

1. 1,000 pico units = 1 nano unit

2. 1,000 nano units = 1 micro unit

3. 1,000 micro units= 1 milli unit

4. 1,000 milli units = 1 unit

5. 1,000 units

= 1 kilo unit

6. 1,000 kilo units = 1 mega unit

Electrolytic capacitors have a positive
and a negative electrode. The negative
lead is indicated on the packaging by a
stripe with minus signs and possibly
arrowheads.

Warning:

If the capacitor is
connected with
incorrect polarity, it
may heat up and
either leak, or
cause the capacitor
to explode.

Polarity
Marking

Summary of Contents for K-38

Page 1: ...on Manual Elenco Electronics Inc Copyright 2008 1989 by Elenco Electronics Inc All rights reserved Revised 2008 REV J 753130 No part of this book shall be reproduced by any means electronic photocopyi...

Page 2: ...1 R14 0056 F 562 100V 235618 1 R15 0068 F 682 50V 236810 1 R16 0082 F 822 100V 238218 1 R17 01 F 103 100V 241017 1 R18 015 F 153 100V 241517 1 R19 022 F 223 100V 242217 1 R20 033 F 333 100V 243317 1...

Page 3: ...1 Multiplier Note The letter R may be used at times to signify a decimal point as in 3R3 3 3 103K 100V Maximum Working Voltage The value is 10 x 1 000 10 000pF or 01 F 100V 10 F 16V METRIC UNITS AND C...

Page 4: ...nt Lead Solder Soldering Iron Drag Foil 1 Solder all components from the copper foil side only Push the soldering iron tip against both the lead and the circuit board foil 2 Apply a small amount of so...

Page 5: ...ap R7 680pF 681 50V Cap R8 820pF 821 50V Cap R10 1500pF 152 50V Cap R11 2200pF 222 50V Cap R12 3300pF 332 50V Cap R1 100pF 101 50V Cap R2 150pF 151 50V Cap R3 220pF 221 50V Cap R5 470pF 471 50V Cap R6...

Page 6: ...washers Line up the holes of the PC board with the switch lugs as shown in Figure 3 Be sure that the board lays flat then solder the lugs into place Tighten down the 9mm nuts Jumper wire from SW1 Jump...

Page 7: ...e same procedure for switch SW2 MFD except follow the copper run to the 0047 F R13 capacitor Align the knob on the SW2 MFD switch to the 0047 F position TESTING THE CIRCUIT SCHEMATIC DIAGRAM SW1 PFD P...

Page 8: ...Elenco Electronics Inc 150 Carpenter Avenue Wheeling IL 60090 847 541 3800 Website www elenco com e mail elenco elenco com...

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