Version 4
SHEET 1 1196 680
WIRE 256 -256 32 -256
WIRE 448 -256 256 -256
WIRE 256 -224 256 -256
WIRE 448 -224 448 -256
WIRE 448 -112 448 -144
WIRE 256 -64 256 -160
WIRE 256 -64 128 -64
WIRE 384 -64 256 -64
WIRE 128 0 128 -64
WIRE 448 16 448 -16
WIRE 448 16 368 16
WIRE 368 32 368 16
WIRE 800 64 608 64
WIRE 896 64 864 64
WIRE 992 64 976 64
WIRE 448 128 448 16
WIRE 496 128 448 128
WIRE 608 128 608 64
WIRE 608 128 576 128
WIRE 880 128 752 128
WIRE 224 144 208 144
WIRE 368 144 368 112
WIRE 368 144 288 144
WIRE 448 144 448 128
WIRE 32 160 32 -256
WIRE 752 176 752 128
WIRE 784 176 752 176
WIRE 880 192 880 128
WIRE 880 192 848 192
WIRE 896 192 880 192
WIRE 992 192 992 64
WIRE 992 192 976 192
WIRE 1088 192 992 192
WIRE 208 208 208 144
WIRE 272 208 208 208
WIRE 368 208 368 144
WIRE 368 208 352 208
WIRE 400 208 368 208
WIRE 608 208 608 128
WIRE 640 208 608 208
WIRE 736 208 704 208
WIRE 784 208 736 208
WIRE 1088 240 1088 192
WIRE 208 256 208 208
WIRE 448 288 448 240
WIRE 736 288 736 208
WIRE 32 384 32 240
WIRE 128 384 128 80
WIRE 128 384 32 384
WIRE 208 384 208 336
WIRE 208 384 128 384
WIRE 448 384 448 368
WIRE 448 384 208 384
WIRE 736 384 736 368
WIRE 736 384 448 384
WIRE 1088 384 1088 320
WIRE 1088 384 736 384
WIRE 32 416 32 384
FLAG 32 416 0
SYMBOL voltage 32 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 40
SYMBOL voltage 448 272 R0
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 1.8
SYMBOL njf 400 144 R0
SYMATTR InstName J1
SYMATTR Value J201
SYMBOL Misc\\EuropeanResistor 384 128 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R1
SYMATTR Value 10e6
SYMBOL Misc\\EuropeanResistor 256 224 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R3
SYMATTR Value 1e6
SYMBOL OPAMPS\\OPAMP 816 128 R0
SYMATTR InstName U1
SYMBOL Misc\\EuropeanResistor 464 -128 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R2
SYMATTR Value 470
SYMBOL voltage 208 240 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -50 178 Left 2
SYMATTR Value SINE(0 1 1K)
SYMATTR InstName V3
SYMBOL cap 288 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 2p
SYMBOL cap 864 48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 4.7µ
SYMBOL res 1072 224 R0
SYMATTR InstName R4
SYMATTR Value 8R
SYMBOL cap 704 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 1µ
SYMBOL Misc\\EuropeanResistor 752 384 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R5
SYMATTR Value 47K
SYMBOL diode 240 -224 R0
SYMATTR InstName D1
SYMATTR Value rot
SYMBOL pnp 384 -16 M180
SYMATTR InstName Q1
SYMATTR Value BC557C
SYMBOL Misc\\EuropeanResistor 144 96 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R6
SYMATTR Value 22K
SYMBOL Misc\\EuropeanResistor 880 208 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 0.47
SYMBOL Misc\\EuropeanResistor 880 80 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R8
SYMATTR Value 470
SYMBOL Misc\\EuropeanResistor 480 144 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R9
SYMATTR Value 100
TEXT 136 480 Left 2 !.inc opamp.sub
TEXT 136 520 Left 2 !.tran 0 100m 90m
TEXT 136 552 Left 2 !.model rot D(Ron=1m Roff=1G Vfwd=1.2)
TEXT 480 72 Left 2 ;ri=4.3K
TEXT 480 24 Left 2 ;belastet mit 1075*R4
TEXT 1040 408 Left 2 ;Lautsprecher
TEXT 744 248 Left 2 ;linearer Verstärker
TEXT 192 64 Left 2 ;Trioderizer
TEXT 472 -120 Left 2 ;Stromquelle
TEXT 144 440 Left 2 ;Eingangssignal