Version 4
SHEET 1 1260 680
WIRE 208 -624 -400 -624
WIRE 624 -624 208 -624
WIRE 1136 -624 624 -624
WIRE 208 -592 208 -624
WIRE 624 -592 624 -624
WIRE 1136 -592 1136 -624
WIRE 208 -464 208 -512
WIRE 208 -464 -48 -464
WIRE 1136 -464 1136 -512
WIRE 1136 -464 880 -464
WIRE -48 -432 -48 -464
WIRE 208 -432 208 -464
WIRE 880 -432 880 -464
WIRE 1136 -432 1136 -464
WIRE -48 -320 -48 -352
WIRE 208 -320 208 -352
WIRE 880 -320 880 -352
WIRE 1136 -320 1136 -352
WIRE 624 -304 624 -512
WIRE 624 -304 512 -304
WIRE -400 -288 -400 -624
WIRE 80 -272 16 -272
WIRE 144 -272 80 -272
WIRE 1008 -272 944 -272
WIRE 1072 -272 1008 -272
WIRE 512 -256 512 -304
WIRE 80 -192 80 -272
WIRE 208 -192 208 -224
WIRE 208 -192 80 -192
WIRE 1008 -192 1008 -272
WIRE 1136 -192 1136 -224
WIRE 1136 -192 1008 -192
WIRE 624 -160 624 -304
WIRE 80 -144 80 -192
WIRE 1008 -144 1008 -192
WIRE -400 -112 -400 -208
WIRE 512 -112 512 -176
WIRE 560 -112 512 -112
WIRE 208 -64 208 -192
WIRE 512 -64 512 -112
WIRE 1136 -64 1136 -192
WIRE -48 -16 -48 -224
WIRE 80 -16 80 -64
WIRE 80 -16 -48 -16
WIRE 144 -16 80 -16
WIRE 624 -16 624 -64
WIRE 624 -16 576 -16
WIRE 880 -16 880 -224
WIRE 1008 -16 1008 -64
WIRE 1008 -16 880 -16
WIRE 1072 -16 1008 -16
WIRE 624 0 624 -16
WIRE -48 32 -48 -16
WIRE 880 32 880 -16
WIRE -400 80 -400 -32
WIRE -368 80 -400 80
WIRE 208 80 208 32
WIRE 208 80 16 80
WIRE 1136 80 1136 32
WIRE 1136 80 944 80
WIRE 208 96 208 80
WIRE 1136 96 1136 80
WIRE -368 112 -368 80
WIRE 512 112 512 32
WIRE 624 112 624 80
WIRE 624 112 512 112
WIRE -400 208 -400 80
WIRE -48 208 -48 128
WIRE -48 208 -400 208
WIRE 208 208 208 176
WIRE 208 208 -48 208
WIRE 624 208 624 112
WIRE 624 208 208 208
WIRE 880 208 880 128
WIRE 880 208 624 208
WIRE 1136 208 1136 176
WIRE 1136 208 880 208
FLAG -368 112 0
SYMBOL npn 144 -64 R0
SYMATTR InstName Q1
SYMATTR Value BC546B
SYMBOL npn 16 32 M0
SYMATTR InstName Q2
SYMATTR Value BC546B
SYMBOL res 192 80 R0
SYMATTR InstName R1
SYMATTR Value 330
SYMBOL pnp 144 -224 M180
SYMATTR InstName Q3
SYMATTR Value BC556B
SYMBOL pnp 16 -224 R180
SYMATTR InstName Q4
SYMATTR Value BC556B
SYMBOL res 64 -160 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL res -64 -448 R0
SYMATTR InstName R3
SYMATTR Value 3300
SYMBOL res 192 -448 R0
SYMATTR InstName R4
SYMATTR Value 330
SYMBOL voltage -400 -304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 15 100 10ms)
SYMBOL npn 560 -160 R0
SYMATTR InstName Q5
SYMATTR Value BC546B
SYMBOL npn 576 -64 M0
SYMATTR InstName Q6
SYMATTR Value BC546B
SYMBOL res 608 -16 R0
SYMATTR InstName R5
SYMATTR Value 33
SYMBOL res 496 -272 R0
SYMATTR InstName R6
SYMATTR Value 200k
SYMBOL res 608 -608 R0
SYMATTR InstName R7
SYMATTR Value 1
SYMBOL res 192 -608 R0
SYMATTR InstName R8
SYMATTR Value 1
SYMBOL npn 1072 -64 R0
SYMATTR InstName Q7
SYMATTR Value BC546B
SYMBOL npn 944 32 M0
SYMATTR InstName Q8
SYMATTR Value BC546B
SYMBOL res 1120 80 R0
SYMATTR InstName R9
SYMATTR Value 33
SYMBOL pnp 1072 -224 M180
SYMATTR InstName Q9
SYMATTR Value BC556B
SYMBOL pnp 944 -224 R180
SYMATTR InstName Q10
SYMATTR Value BC556B
SYMBOL res 992 -160 R0
SYMATTR InstName R10
SYMATTR Value 100k
SYMBOL res 864 -448 R0
SYMATTR InstName R11
SYMATTR Value 330
SYMBOL res 1120 -448 R0
SYMATTR InstName R12
SYMATTR Value 33
SYMBOL res 1120 -608 R0
SYMATTR InstName R13
SYMATTR Value 1
SYMBOL voltage -400 -128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 40 1ms 10ms)
TEXT -264 -544 Left 2 !.dc V1 0 350 .1
TEXT 40 -536 Left 2 ;2mA
TEXT 472 -536 Left 2 ;18mA
TEXT 968 -536 Left 2 ;22mA
TEXT 416 -504 Left 2 ;startar vid 10-20V
TEXT 0 -512 Left 2 ;startar vid 2.1V
TEXT 920 -512 Left 2 ;startar vid 2.3V