Version 4
SHEET 1 880 680
WIRE 384 -64 -336 -64
WIRE 480 -64 384 -64
WIRE 384 -32 384 -64
WIRE 128 0 -224 0
WIRE 480 32 480 -64
WIRE 48 48 32 48
WIRE 192 48 112 48
WIRE 384 80 384 48
WIRE 416 80 384 80
WIRE 128 96 128 0
WIRE -80 112 -112 112
WIRE 32 112 32 48
WIRE 32 112 0 112
WIRE 96 112 32 112
WIRE 192 128 192 48
WIRE 192 128 160 128
WIRE 224 128 192 128
WIRE 320 128 304 128
WIRE 96 144 32 144
WIRE -80 192 -112 192
WIRE 32 192 32 144
WIRE 32 192 0 192
WIRE 224 192 32 192
WIRE 480 192 480 128
WIRE 480 192 304 192
WIRE 496 192 480 192
WIRE -336 224 -336 -64
WIRE -224 224 -224 0
WIRE -112 224 -112 192
WIRE 480 224 480 192
WIRE -336 336 -336 304
WIRE -224 336 -224 304
WIRE -112 336 -112 304
WIRE 128 336 128 160
WIRE 384 336 384 176
WIRE 480 336 480 304
FLAG -112 336 0
FLAG -336 336 0
FLAG 480 336 0
FLAG 128 336 0
FLAG -112 112 0
FLAG 384 336 0
FLAG -224 336 0
FLAG 496 192 OUT
SYMBOL Opamps\\UniversalOpamp2 128 128 R0
SYMATTR InstName U1
SYMBOL voltage -112 320 R180
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 1V
SYMBOL res 16 96 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 4.7k
SYMBOL cap 112 32 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value 150p
SYMBOL voltage -336 208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 30V
SYMBOL res 16 176 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 2k
SYMBOL res 320 176 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 12k
SYMBOL res 320 112 R90
WINDOW 0 5 56 VBottom 0
WINDOW 3 27 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL npn 320 80 R0
SYMATTR InstName Q1
SYMATTR Value BC337-40
SYMBOL res 368 -48 R0
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL npn 416 32 R0
SYMATTR InstName Q2
SYMATTR Value 2N3019
SYMBOL voltage -224 208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 5V
SYMBOL res 464 208 R0
SYMATTR InstName Rload
SYMATTR Value 30
TEXT -8 296 Left 0 !.dc V1 0 5 1m