Version 4
SHEET 1 1420 680
WIRE -688 -64 -1040 -64
WIRE -1040 16 -1040 -64
WIRE -224 16 -688 16
WIRE -192 16 -224 16
WIRE -832 64 -848 64
WIRE -192 128 -192 16
WIRE -1040 160 -1040 96
WIRE -848 160 -848 64
WIRE -848 160 -1040 160
WIRE -688 160 -688 112
WIRE -688 160 -848 160
WIRE -560 160 -688 160
WIRE -192 288 -192 192
FLAG -192 288 0
FLAG -224 16 Vbatt
FLAG -560 160 0
SYMBOL Misc\\battery -1040 0 R0
WINDOW 123 0 0 Left 0
WINDOW 39 24 132 Left 0
SYMATTR InstName V3
SYMATTR Value 12
SYMATTR SpiceLine Rser=1
SYMBOL npn -752 16 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL res -736 48 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res -704 -80 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL polcap -208 128 R0
WINDOW 3 24 64 Left 0
SYMATTR InstName C1
SYMATTR Value 1000µ
SYMATTR Description Capacitor
SYMATTR Type cap
SYMATTR SpiceLine V=35 Irms=1.95 Rser=0.03 Lser=0 mfg="Panasonic" pn="ECA1VFQ102L" type="Al electrolytic"
TEXT -222 478 Left 0 !.tran 100ms
TEXT -424 280 Left 0 !.IC V(Vbatt)=0