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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 2
DIGITAL DC VOLTMETER
ǧ¨Ã Ô¨ÔµÍÅ Õ«ÕâÇÅ·‹ÁÔàµÍË
CODE 924Figure 1.
The Digital
DC Voltmeter
Circuit
VR2 VR1
+
+
+
DP
IN2IN1G7.5-15V
G+
FK924
J J
COPPER SIZEOF DISPLAY BOARD
COPPER SIZEOF MOTHER BOARD
SOLDERING
COPPER SIZEOF MOTHER BOARD
R .....Ω
R
R
Figure 3.Installing the Components
RESISTOR
C .....µF
C C
CERAMICCAPACITOR
C
+
+
C .....µF
C
+
ELECTROLYTICCAPACITOR
Watch the polarity!
TRIMMER
POTENTIOMETERVR .....KΩ1
2
3
VR VR
TRANSISTOR
NPN
B
E
C
TRTR
PNP
B
E
C
DK A
K
A
K
A
ZDK A
DIODE AND
ZENER DIODE
IC2
IN
GN
D
OU
T
NOTE:
FUTURE BOX FB06
is suitable for this kit.
NO.1