Lightning Intensity Detector
An indicator for extremely high voltages
Materials
Gerber file
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Component list
R1 = 10k?
R2,R4 = 10M?
R3 = 22k?
R5 = 2k?2
R6,R 7= 1k?
Capacitors:
C1-C4 = 100nF
Semiconductors:
D1,D2 = LED, red, low-current
IC1,IC2 = 4093
IC3 = 78L05 (see text)
Miscellaneous:
ANT = antenna, telescopic whip or 1 metre wire
K1 = 9V battery with clip-on leads
S1 = pushbutton, 1 make contact
PCB, available from The PCBShop
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