The document provides a guide on building a home electronics lab, detailing essential tools and components needed for basic circuit projects. It lists various items such as multimeters, breadboards, resistors, capacitors, diodes, transistors, voltage regulators, operational amplifiers, and digital logic gates, alongside recommended part numbers and resources for datasheets. Additionally, it includes examples of simple circuits for practical application.

1. Build your own lab
By: Karim El-Rayes

2. Build your own lab
Do you want to build some electronic projects
at home ???
Do you want to have a small homemade lab
for your academic experiments ???
What do you will need to start building your
own circuit ???

3. Tools and equipments you will need
Small digital
Multimeter
DMM.

4. Bread board
Bread board to
build your
prototype circuits
and test them.

5. AC/DC 12v adaptor
This adaptor convert
220v AC to 12v DC to
be your power supply
for your circuit.

6. Resistors
You will need some
resistors with different
values, these values are
commonly used in
beginners circuits.
Values
330
1 K
4.7 K
10 K
22 K
47 K
100 K
1 M
100 K variable

7. Capacitors
You will need some
capacitors with different
values, these values are
commonly used in
beginners circuits.
Values
0.01 µF
0.1 µF
1 µF
4.7 µF
10 µF
47 µF
100 µF
220 µF
40 nF variable

8. Inductors
You will need some
inductors with different
values, these values are
commonly used in
beginners circuits.
However the values
available in the market are
dependable on the market
demand, so no values will
be mentioned.

9. Diodes
You will need some
diodes and full wave
rectifiers to use in
your circuits.
You can use these
types of diodes in
your circuit: 1N4001
and 1N4004.

10. Full wave rectifiers
They are the four rectifying
diode bridge circuit in one
package.
Inputs are the ~ terminals and the
outputs are the + & - terminals.
Bridge part number W005 will
be suitable but there is variety in
this part so choose what you like
to use.
Get datasheets for other bridge
parts from:
www.datasheetcatalog.com

11. Zener diodes
You may need
zener diodes in
your circuit, use
zener 5v and
zener 12v diodes.

12. LED
Sure you will need some LED’s as
indicators in your circuit, but take
care to connect a 330 or 1K resistor
in series with the LED to protect it from
over current and voltage.
LED has no part number.

13. Transistors
You will need some
transistors to work on them.
I recommend two types to
work on them.
Get datasheets of these
transistors from:
www.datasheetcatalog.com
TIP41 power NPN BJT transistor
2N2222 NPN BJT transistor

14. Voltage regulators
Voltage regulators are cheap IC’s
used to regulate input voltage by
lowering it from higher voltage to a
lower constant voltage level, used
for protecting electronic circuits.
They look like power transistors.
Terminals connection:
1: input voltage.
2:ground.
3: regulated output voltage 5v or 12v.
Get there datasheets from:
www.datasheetcatalog.com
IC#: 7805 5v regulator and 7812
12v regulator

15. 741 Operational amplifier
Operational amplifier or
shortly called Op-Amp is the
basic building block for analog
electronic systems, op-amp can
perform many functions like
amplifier, voltage summer,
integrator, buffer and many other
applications.
use Op-amp IC# : 741, get its
data sheet from:
www.datasheetcatalog.com

16. 555 timer/oscillator
555 is one of the
famous IC in the
electronics field, sure
will use it in you circuits.
It can function many
tasks but the most famous
function is square wave
oscillator.
Get 555 datasheet from:
www.datasheetcatalog.com

17. Logic gates
If you are interested in digital
electronics you ’d like to use
logic gates.
Mentioned in this table 74xx
TTL logic family part numbers.
Part number Description
7400 NAND
7402 NOR
7404 NOT
7408 AND
7432 OR
7486 XOR
7474 D-flip flop
7476 J-K flip flop
7448,7447 7 segment driver
7407 Open collector
buffer

18. Some other digital modules
Mentioned in the table
some other digital
modules you would like to
use.
For more information get
there datasheets from:
www.datasheetcatalog.com
Part number Description
74154 4x16 decoder
74151 8x1 Mux
7490 BCD counter
74393 Binary counter
74373 Tri-state
latches
74245 Octal buffers

19. Wires and connections
You will wires to connect
your circuit on the
breadboard, I recommend
to use Ethernet cable cause
it little bit soft and be
easily bended and
reconfigured inside the
circuit.
These wires

20. Tools you will need
Wire cutter
Soldering iron
Screw drivers
Plier
Soldering wire
Soldering flux

21. Example #1: simple power supply
5v power supply circuit

22. Example #2: LED flasher using 555