Version 4
SHEET 1 880 680
WIRE 320 48 -32 48
WIRE 464 48 320 48
WIRE 464 80 464 48
WIRE -32 128 -32 48
WIRE 176 128 96 128
WIRE 320 128 256 128
WIRE 400 128 320 128
WIRE 464 192 464 176
FLAG -32 208 0
FLAG 96 208 0
FLAG 464 272 0
SYMBOL voltage -32 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL Misc\\signal 96 112 R0
SYMATTR InstName V2
SYMBOL npn 400 80 R0
SYMATTR InstName Q1
SYMATTR Value BC817-40
SYMBOL res 448 176 R0
SYMATTR InstName R1
SYMATTR Value 8
SYMBOL res 304 32 R0
SYMATTR InstName R2
SYMATTR Value 2.5k
SYMBOL res 272 112 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 1k
TEXT -66 296 Left 0 !.tran 0.001