Velleman-Kit EDU08 Manual page 8

Educational lcd oscilloscope
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Construction
Base PCB
1
Diodes
‰ D1 : BAT85
‰ D2 : BAT85
‰ D3 : BAT85
‰ D4 : BAT85
‰ D5 : BAT85
‰ D6 : BAT85
‰ D7 : BAT85
‰ D8 : BAT85
Watch the polarity!
2
Zenerdiode
Watch the polarity!
ZD...
‰ ZD1 : 5V1
3
Ceramic Capacitors
‰ C11 : 100nF (104)
‰ C12 : 100nF (104)
‰ C13 : 100nF (104)
‰ C14 : 100nF (104)
c
...
‰ C15 : 100nF (104)
‰ C16 : 100nF (104)
4
IC-socket
Watch the position of the notch!
‰ IC1 : 16p
‰ IC2 : 8p
‰ IC3 : 28p
5
Switch
‰ SW1 : on/off
6
Coil
L . . .
‰ L1 : 100µH (1 - 0 - 1 - B)
- 8 -
7
Trimmer
‰ RV1 : 5K
‰ RV2 : 5K
8
Ceramic Capacitors
‰ C1 : 2,2pF
‰ C2 : 6,8pF
‰ C3 : 10pF
C...
‰ C4 : 15pF
‰ C5 : 47pF
‰ C6 : 100pF (101)
‰ C7 : 470pF (471)
‰ C10 : 680pF (681)
‰ C17 : 1µF (105)
‰ C18 : 1µF (105)
‰ C19 : 1µF (105)
‰ C20 : 1µF (105)
‰ C21 : 1µF (105)
(Gain)
(Offset)
(2.2)
(6.8)
(10)
(15)
(47)

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