background image

Qty.

Description

Part #

1

PC Board

517009

1

Switch SPDT

541024

1

Pulser Tip

616001

1

Case

623005

2

Screw #4 x 5/8”

643450

1

IC Socket 14-pin

664014

3

Pins

665001

1

Alligator Clip Black

680001

Qty.

Description

Part #

1

Alligator Clip Red

680002

1

Label Front

724005

1

Label Back

724006

1

Wire 22 Gauge Red 1.5”

814220

3’

Wire 2 Conductor

870500

1”

Tubing #20

890020

1”

Shrink Tubing (red)

890312

1

Solder Tube

9ST4

Qty.

Symbol

Description

Part #

3

D1,D4,D5 Diode 1N4001

314001

1

D3

Diode 1N4148

314148

1

D2

Diode Zener 1N5246

315246

3

Q1,Q4,Q5 Transistor 2N3904

323904

Qty.

Symbol

Description

Part #

2

Q2, Q3

2N3906 Transistor

323906

1

U1

IC 4069 

or 74C04

334069

or 34C004

1

D6

LED

350001

Qty.

Symbol

Description

Part #

2

C6, C7

100pF (101) Discap

221017

1

C4

.001

m

F (102) Mylar

231017

1

C3

.01

m

F (103) Mylar

241017

1

C1

.1

m

F (104) Discap

251010

Qty.

Symbol

Description

Part #

1

C5

1

m

F Tantalum

260010

1

C8

10

m

F Lytic 35V

271016

1

C2

22

m

F Lytic 25V

272245

PARTS LIST

If you are a student, and any parts are missing or damaged, please see instructor or bookstore.
If you purchased this kit from a distributor, catalog, etc., please contact Elenco Electronics (address/phone/e-
mail is at the back of this manual) for additional assistance, if needed.

RESISTORS

Qty.

Symbol

Description

Color Code

Part #

2

R1, R16

100

W

5% 1/4W

brown-black-brown-gold

131000

1

R17

470

W

5% 1/4W

yellow-violet-brown-gold

134700

2

R11, R13

2k

W

5% 1/4W

red-black-red-gold

142000

3

R12, R14, R15

20k

W

5% 1/4W

red-black-orange-gold

152000

1

R8

68k

W

5% 1/4W

blue-gray-orange-gold

156800

4

R2, R7, R9, R10

100k

W

5% 1/4W

brown-black-yellow-gold

161000

1

R5

1M

W

5% 1/4W

brown-black-green-gold

171000

2

R3, R6

1.8M

W

5% 1/4W

brown-gray-green-gold

171800

1

R4

10M

W

5% 1/4W

brown-black-blue-gold

181000

CAPACITORS

-1-

SPECIFICATIONS

Maximum Allowable Supply Voltage

+20V, +25V/15 sec.

Maximum Allowable Voltage on Output

+35V

Maximum Sync. Input Voltage

+120V/15 sec.

Operating Supply Voltage Range

4 - 15VDC

Free Air Operating Temperature Range

0 - 50

O

C

Output Pulse Width at 100mA Load

10

m

S

Output Current
1) Pulser Mode

100mA Sink/Source

2) Square Wave Output

5mA Sink/Source

Pulse Repetition Rate

.5PPS / 400PPS

Sync. Input Impedance

1M

W

SEMICONDUCTORS

MISCELLANEOUS

Summary of Contents for LP-425K

Page 1: ...LOGIC PULSER KIT MODEL LP 425K Assembly and Instruction Manual Elenco Electronics Inc Copyright 1995 Elenco Electronics Inc REV D Revised 2002 753262...

Page 2: ...or damaged please see instructor or bookstore If you purchased this kit from a distributor catalog etc please contact Elenco Electronics address phone e mail is at the back of this manual for additio...

Page 3: ...ient current for a short period of time This will not harm the components under test since the average current is very small The injected voltage is produced by the transient current flowing through t...

Page 4: ...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 solder to the iron tip This allo...

Page 5: ...10 100kW Resistor brown black yellow gold R6 1 8MW Resistor brown gray green gold R13 2kW Resistor red black red gold R3 1 8MW Resistor brown gray green gold R12 20kW Resistor red black orange gold se...

Page 6: ...5 see Figure 3B C3 01mF Mylar Capacitor May be marked 103 C4 001mF Mylar Capacitor May be marked 102 D4 1N4001 Diode see Figure 2 D2 1N5246 Zener Diode see Figure 2 C2 22mF Lytic Capacitor see Figure...

Page 7: ...e direction shown on the top legend Figure 8 Insert the tabs and terminals into the PC board Solder terminals only Figure 6 6 Flat Tubing 3 8 Q3 2N3906 Transistor see Figure 7 Q4 2N3904 Transistor see...

Page 8: ...case as shown in Figure 11 The front label should be placed toward the back of the indent toward the 3 pins so that the LED and switch holes align with the case holes Insert the 3 pins P1 P2 and P3 i...

Page 9: ...orrect type and is mounted with the flat side as shown on the PC board e Check the soldering and the values of capacitors C1 through C5 f Check the soldering and the values of resistors R1 through R5...

Page 10: ...9 SCHEMATIC DIAGRAM Note All resistors are 5 1 4W IC 74C04 or 4069 Schematic Diagram LP 425...

Page 11: ...and ground for the remaining _________ A 50 50 B 20 80 C 90 10 D 60 40 9 The Sync Input Terminal SYNC Logic Pulser can be used to produce an externally synchronized signal at the ____________ A outpu...

Page 12: ...Elenco Electronics Inc 150 W Carpenter Avenue Wheeling IL 60090 847 541 3800 http www elenco com e mail elenco elenco com...

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