Version 4
SHEET 1 1748 1080
WIRE 560 -416 -48 -416
WIRE 704 -416 560 -416
WIRE 928 -416 704 -416
WIRE 704 -384 704 -416
WIRE 928 -384 928 -416
WIRE 704 -272 704 -304
WIRE 928 -272 928 -304
WIRE 816 -224 768 -224
WIRE 864 -224 816 -224
WIRE 560 -160 560 -416
WIRE 816 -128 816 -224
WIRE 928 -128 928 -176
WIRE 928 -128 816 -128
WIRE 704 -112 704 -176
WIRE 704 -112 624 -112
WIRE 704 32 704 -112
WIRE 928 32 928 -128
WIRE 816 80 768 80
WIRE 864 80 816 80
WIRE 560 128 560 -64
WIRE 816 176 816 80
WIRE 1040 176 816 176
WIRE 1040 224 1040 176
WIRE -48 288 -48 -416
WIRE 704 304 704 128
WIRE 928 304 928 128
WIRE 416 368 336 368
WIRE 560 368 560 208
WIRE 560 368 496 368
WIRE 656 368 560 368
WIRE 1040 368 1040 304
WIRE 1040 368 976 368
WIRE 336 448 336 368
WIRE 704 448 704 400
WIRE 816 448 704 448
WIRE 928 448 928 400
WIRE 928 448 816 448
WIRE -48 656 -48 368
WIRE -48 656 -256 656
WIRE 336 656 336 528
WIRE 336 656 -48 656
WIRE 1040 656 1040 368
WIRE 1040 656 336 656
WIRE -256 720 -256 656
WIRE -48 736 -48 656
WIRE 560 752 560 368
WIRE 816 752 816 448
WIRE 672 800 624 800
WIRE 752 800 672 800
WIRE 672 864 672 800
WIRE 560 880 560 848
WIRE 816 880 816 848
WIRE -48 992 -48 816
WIRE 560 992 560 960
WIRE 560 992 -48 992
WIRE 672 992 672 944
WIRE 672 992 560 992
WIRE 816 992 816 960
WIRE 816 992 672 992
FLAG -256 720 0
SYMBOL voltage -48 272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL njf 656 304 R0
SYMATTR InstName J1
SYMATTR Value 2N3819
SYMBOL njf 976 304 M0
SYMATTR InstName J2
SYMATTR Value 2N3819
SYMBOL res 912 -400 R0
SYMATTR InstName R3
SYMATTR Value 100
SYMBOL voltage 336 432 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 50m 1e6)
SYMATTR Value2 AC 1.
SYMBOL npn 752 752 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL res 800 864 R0
SYMATTR InstName R2
SYMATTR Value 220
SYMBOL voltage 672 848 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 2.6
SYMBOL npn 768 32 M0
SYMATTR InstName Q2
SYMATTR Value BC547C
SYMBOL npn 864 32 R0
SYMATTR InstName Q3
SYMATTR Value BC547C
SYMBOL voltage 1040 208 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V5
SYMATTR Value 4
SYMBOL pnp 864 -176 M180
SYMATTR InstName Q4
SYMATTR Value BC557C
SYMBOL pnp 768 -176 R180
SYMATTR InstName Q5
SYMATTR Value BC557C
SYMBOL res 688 -400 R0
SYMATTR InstName R4
SYMATTR Value 100
SYMBOL npn 624 -160 M0
SYMATTR InstName Q6
SYMATTR Value BC547C
SYMBOL res 544 112 R0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL res 512 352 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL npn 624 752 M0
SYMATTR InstName Q7
SYMATTR Value BC547C
SYMBOL res 544 864 R0
SYMATTR InstName R1
SYMATTR Value 2k2
SYMBOL voltage -48 720 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V6
SYMATTR Value 15
TEXT -18 944 Left 2 !;tran 10µ
TEXT 112 944 Left 2 !.ac dec 20 100k 100e6