Construction
1. Diode. Watch the polarity !
D1 : 1N4148
CATHODE
2. Resistor
R...
R1 : 1K
(1 - 0 - 2 - B)
R2 : 10K (1 - 0 - 3 - B)
R3 : 4K7 (4 - 7 - 2 - B)
R4 : 1K
(1 - 0 - 2 - B)
R5 : 10K (1 - 0 - 3 - B)
R6 : 4K7 (4 - 7 - 2 - B)
R7 : 1K
(1 - 0 - 2 - B)
6
3. IC socket. Check the
position of the notch!
D...
IC : 8p.
4. Capacitor
C1 : 100nF
5. Trim potentiometer
RV1 : 2M2
6. Transistor
T1 : BC547B
7. Electrolytic Capacitor.
Watch the polarity !
C2 : 100µF
C...
8. LED. Check the polarity!
LD1 : 5mm RED
C...
COLOR = 2...5
LD...
CATHODE