Version 4 SHEET 1 880 680 WIRE 176 -208 -112 -208 WIRE 48 -176 -64 -176 WIRE 176 -176 176 -208 WIRE -112 -96 -112 -208 WIRE -64 -96 -64 -176 WIRE 48 16 48 -96 WIRE 176 16 176 -96 WIRE 176 16 48 16 WIRE 256 16 176 16 WIRE 368 16 256 16 WIRE 48 64 48 16 WIRE 256 128 256 16 WIRE 48 176 48 144 WIRE 144 176 48 176 WIRE 192 176 144 176 WIRE 48 256 48 176 WIRE 256 256 256 224 WIRE 432 256 432 16 WIRE 144 272 144 176 FLAG 48 336 0 FLAG 144 336 0 FLAG 256 336 0 FLAG 432 336 0 FLAG -64 -96 0 FLAG -112 -96 0 SYMBOL npn 192 128 R0 SYMATTR InstName Q1 SYMATTR Value BC547B SYMBOL res 240 240 R0 SYMATTR InstName R1 SYMATTR Value 100 SYMBOL cap 128 272 R0 SYMATTR InstName C1 SYMATTR Value 10µ SYMBOL res 32 240 R0 SYMATTR InstName R2 SYMATTR Value 100k SYMBOL res 32 48 R0 SYMATTR InstName R3 SYMATTR Value 100k SYMBOL cap 432 0 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C2 SYMATTR Value 1µ SYMBOL res 416 240 R0 SYMATTR InstName R4 SYMATTR Value 10k SYMBOL current 48 -176 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName I1 SYMATTR Value 10m SYMBOL current 176 -176 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName I2 SYMATTR Value SINE(0 100µ 1000) TEXT 296 -192 Left 0 !.tran 1 startup