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FUTURE KIT

FUTURE KIT

HIGH QUALITY ELECTRONIC KITS

HIGH QUALITY ELECTRONIC KIT SET FOR HOBBY & EDUCATION

R

NO.1

Figure 2. Circuit Assembling

LEVEL 1

WHISPER AMPLIFIER

à¤Ã×èͧª‡Ç¿ѧàÊÕ§

CODE 917

NOTE:

FUTURE BOX FB03 is suitable for this kit.

Figure 1. The Whisper Amplifier Circuit

R .....Ω

R

R

Figure 3. Installing the Componants

RESISTOR

C

C .....µF

C

CERAMICCAPACITOR

C

+

+

C .....µF

C

+

ELECTROLYTICCAPACITOR

Watch the polarity!

Watch the

position of the notch!

IC1

IC

1

TRIMMER

POTENTIOMETER

VR .....KΩ1

2

3

VR

VR

HORIZONTAL

V

R V

R

VERTICAL

FK917

RED +

BLACK -

+

-

1.5V

+

-

1.5VPOWER SOURCE1.5Vx2 SIDE AA

VR1 G

+3V

SP+

-

+

+

++

+

+

CONDENSERMICROPHONE

+

EARPHONE