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FUTURE KIT

FUTURE KIT

HIGH QUALITY ELECTRONIC KITS

HIGH QUALITY ELECTRONIC KIT SET FOR HOBBY & EDUCATION

R

LEVEL 2

ä¿¡ÃоÃÔºàµ×͹ LED 20 ´Ç§

WARNING LIGHT FLASHER 20 LED

CODE 179

NO.1

Figure 2. Circuit Assembling

Figure 1. Warning light flasher 20 LED circuit

NOTE:FUTURE BOX FB21is suitable for this kit.

1

FK179

2

VR1 VR2

+

+

LED

K

A

LED

K

A

LED

K

A

LED

K

A

LED

K

A

LED

K

A

LED

K

A

LED

K

A

LED

K

ALED

K

ALED

K

A

LED

K

A

LED

K

A

LED

K

A

LED

K

A

LED

K

A

LED

K

ALED

K

A LED

K

A

LED

K

A

220VAC

1 2SW

AC IN220VAC

DANGERMains voltage

RESISTOR ELECTROLYTIC

CAPACITOR

TRANSISTORIC

TRIMMER

POTENTIOMETER

Figure 3. Installing the Components

Watch the position of the notch!

Watch the polarity!

LED

C

+

+

C .....µFR .....Ω R

R

TRTR

NPN

B

E

C

C

+

VR .....KΩ1

2

3

VR

VR

KA

LEDK

A

LED

LED

K

A

K

A

DK A

ZDK A

1

ICDIODE AND

ZENER DIODE