Version 4
SHEET 1 896 680
WIRE -48 -128 -96 -128
WIRE 64 -128 16 -128
WIRE -96 -112 -96 -128
WIRE -144 -64 -160 -64
WIRE -96 0 -96 -32
WIRE -48 0 -96 0
WIRE 64 0 64 -128
WIRE 64 0 16 0
WIRE -160 48 -160 -64
WIRE 128 64 16 64
WIRE 384 64 352 64
WIRE 512 64 384 64
WIRE 512 80 512 64
WIRE 16 96 16 64
WIRE 64 128 64 0
WIRE 128 128 64 128
WIRE 416 128 352 128
WIRE -160 192 -160 128
WIRE -160 192 -224 192
WIRE 128 192 -160 192
WIRE 416 192 352 192
WIRE 512 192 512 160
WIRE 128 256 96 256
WIRE 448 256 352 256
WIRE 64 288 64 128
WIRE 96 320 96 256
WIRE 384 320 384 64
WIRE 384 320 96 320
WIRE 64 352 64 288
WIRE 416 352 416 192
WIRE 416 352 64 352
WIRE 64 384 64 352
WIRE 448 384 448 256
WIRE 64 464 64 448
WIRE 448 464 448 448
FLAG 448 464 0
FLAG 16 96 0
FLAG 64 464 0
FLAG 512 192 0
FLAG -224 192 out
IOPIN -224 192 Out
FLAG 64 288 c1
SYMBOL Misc\\NE555 240 160 R0
SYMATTR InstName U1
SYMBOL cap 48 384 R0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL diode -48 -144 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 16 -16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL cap 432 384 R0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL voltage 512 64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL potentiometer -80 -128 M0
WINDOW 3 -20 -28 Left 2
SYMATTR InstName U2
SYMATTR Value Rtot=10K wiper=0.5
SYMBOL Misc\\EuropeanResistor -176 32 R0
SYMATTR InstName R1
SYMATTR Value 470
TEXT -296 504 Left 2 !.tran 50m
TEXT -296 472 Left 2 !.lib potentiometer.sub
TEXT -288 -240 Left 3 ;Tastverhaltnis mit dem Wert von "wiper" einstellen.