Version 4
SHEET 1 1292 744
WIRE 528 -80 416 -80
WIRE 640 -80 528 -80
WIRE 752 -80 640 -80
WIRE 928 -80 752 -80
WIRE 1136 -80 928 -80
WIRE 1216 -80 1136 -80
WIRE 640 -48 640 -80
WIRE 752 -48 752 -80
WIRE 928 16 928 -80
WIRE 752 64 752 32
WIRE 864 64 752 64
WIRE 1136 64 1136 -80
WIRE 752 96 752 64
WIRE 416 144 416 -80
WIRE 640 144 640 32
WIRE 640 144 576 144
WIRE 672 144 640 144
WIRE 688 144 672 144
WIRE 640 176 640 144
WIRE 32 208 -32 208
WIRE 144 208 112 208
WIRE 256 208 208 208
WIRE 320 208 256 208
WIRE 368 208 320 208
WIRE 928 208 928 112
WIRE 960 208 928 208
WIRE 1056 208 1024 208
WIRE 1088 208 1056 208
WIRE 752 240 752 192
WIRE 416 272 416 240
WIRE 416 288 416 272
WIRE 480 288 416 288
WIRE 640 288 640 256
WIRE 640 288 544 288
WIRE 656 288 640 288
WIRE 688 288 656 288
WIRE -32 320 -32 208
WIRE 1216 320 1216 -80
WIRE 752 352 752 336
WIRE 864 352 752 352
WIRE 864 368 864 352
WIRE 752 448 752 432
WIRE 864 448 864 432
WIRE 864 448 752 448
WIRE 1056 448 1056 208
WIRE 256 464 256 208
WIRE 320 464 320 208
WIRE 416 464 416 288
WIRE 640 464 640 288
WIRE 752 464 752 448
WIRE 864 464 864 448
WIRE 928 464 928 208
WIRE 576 480 576 144
WIRE -32 576 -32 400
WIRE 256 576 256 528
WIRE 256 576 -32 576
WIRE 320 576 320 544
WIRE 320 576 256 576
WIRE 416 576 416 544
WIRE 416 576 320 576
WIRE 576 576 576 544
WIRE 576 576 416 576
WIRE 640 576 640 544
WIRE 640 576 576 576
WIRE 752 576 752 544
WIRE 752 576 640 576
WIRE 864 576 864 528
WIRE 864 576 752 576
WIRE 928 576 928 544
WIRE 928 576 864 576
WIRE 1056 576 1056 528
WIRE 1056 576 928 576
WIRE 1136 576 1136 128
WIRE 1136 576 1056 576
WIRE 1216 576 1216 400
WIRE 1216 576 1136 576
FLAG 1216 576 0
FLAG 1056 208 Vout
FLAG -32 208 Vin
FLAG 416 272 Vs
FLAG 528 -80 Vcc
FLAG 672 144 Vbq3
FLAG 656 288 Vbq1
FLAG 752 64 Vcq3
SYMBOL voltage -32 304 R0
WINDOW 123 24 118 Left 2
SYMATTR Value2 AC 100u
SYMATTR InstName V1
SYMATTR Value SINE(0 10u {F})
SYMATTR SpiceLine Rser=100
SYMBOL njf 368 144 R0
SYMATTR InstName J1
SYMATTR Prefix J
SYMATTR SpiceModel JBF862
SYMBOL res 400 448 R0
SYMATTR InstName R1
SYMATTR Value 50
SYMBOL voltage 1216 304 R0
SYMATTR InstName V2
SYMATTR Value 9v
SYMBOL res 1040 432 R0
SYMATTR InstName R3
SYMATTR Value 50
SYMBOL cap 1024 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 330nF
SYMBOL npn 688 240 R0
SYMATTR InstName Q1
SYMATTR Value BFR93A
SYMATTR Prefix X
SYMATTR SpiceModel BFR93A
SYMBOL res 736 448 R0
SYMATTR InstName R4
SYMATTR Value 20
SYMBOL cap 1152 128 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value 330nF
SYMBOL npn 864 16 R0
SYMATTR InstName Q2
SYMATTR Value BFR93A
SYMATTR Prefix X
SYMATTR SpiceModel BFR93A
SYMBOL res 912 448 R0
SYMATTR InstName R6
SYMATTR Value 220
SYMBOL res 736 -64 R0
SYMATTR InstName R5
SYMATTR Value 220
SYMBOL res 624 -64 R0
SYMATTR InstName R2
SYMATTR Value 3k3
SYMBOL res 624 448 R0
SYMATTR InstName R7
SYMATTR Value 680
SYMBOL cap 544 272 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 33nF
SYMBOL res 624 160 R0
SYMATTR InstName R8
SYMATTR Value 1k
SYMBOL cap 592 544 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C4
SYMATTR Value 33nF
SYMBOL npn 688 96 R0
SYMATTR InstName Q3
SYMATTR Value BFR93A
SYMATTR Prefix X
SYMATTR SpiceModel BFR93A
SYMBOL cap 880 528 R180
WINDOW 0 24 56 Left 2
WINDOW 3 -10 -4 Left 2
SYMATTR InstName C5
SYMATTR Value 330nF
SYMBOL res 736 336 R0
SYMATTR InstName R9
SYMATTR Value 10
SYMBOL cap 880 432 R180
WINDOW 0 7 52 Right 2
WINDOW 3 9 13 Right 2
SYMATTR InstName C6
SYMATTR Value {C6}
SYMBOL res 304 448 R0
SYMATTR InstName R10
SYMATTR Value 10k
SYMBOL cap 208 192 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C7
SYMATTR Value 33nF
SYMBOL ind 128 192 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName L1
SYMATTR Value 20nH
SYMATTR SpiceLine Rser=30
SYMBOL cap 272 528 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C8
SYMATTR Value 6pF
TEXT 816 624 Left 2 !.lib BF862.mod\n.lib BFR93A.sub
TEXT 216 624 Left 2 !.ac dec 20 10k 1200Meg\n.step param C6 7p 32p 5p
TEXT 216 704 Left 2 ;.tran 0 {128/F} {16/F} {5m/F}
TEXT 216 728 Left 2 !.param F=900Meg