Version 4
SHEET 1 1064 680
WIRE 560 -192 464 -192
WIRE 656 -192 560 -192
WIRE 832 -192 656 -192
WIRE 656 -176 656 -192
WIRE 896 -176 736 -176
WIRE 944 -176 896 -176
WIRE 560 -160 560 -192
WIRE 464 -144 464 -192
WIRE 944 -96 736 -96
WIRE 560 -80 560 -96
WIRE 656 -80 656 -96
WIRE 656 -80 560 -80
WIRE 944 -80 944 -96
WIRE 656 -48 656 -80
WIRE 256 0 240 0
WIRE 400 0 336 0
WIRE 464 0 400 0
WIRE 544 0 464 0
WIRE 592 0 544 0
WIRE 464 16 464 0
WIRE 832 16 832 -192
WIRE 656 80 656 48
WIRE -48 128 -96 128
WIRE 80 128 32 128
WIRE 144 128 80 128
WIRE 272 128 192 128
WIRE 464 128 464 96
WIRE 464 128 336 128
WIRE 544 128 464 128
WIRE 592 128 544 128
WIRE -96 160 -96 128
WIRE 80 160 80 128
WIRE 192 160 192 128
WIRE 400 192 400 0
WIRE 464 192 464 128
WIRE 656 192 656 176
WIRE 144 240 144 128
WIRE 192 240 144 240
WIRE -96 288 -96 240
WIRE 80 288 80 240
WIRE 80 288 -96 288
WIRE 400 288 400 256
WIRE 400 288 80 288
WIRE 464 288 464 272
WIRE 464 288 400 288
WIRE 656 288 656 272
WIRE 656 288 464 288
WIRE 832 288 832 96
WIRE 832 288 656 288
WIRE -96 304 -96 288
FLAG -96 304 0
FLAG 944 -80 0
FLAG 544 128 B1
FLAG 544 0 B2
FLAG 240 0 0
FLAG 896 -176 Out
SYMBOL npn 592 -48 R0
SYMATTR InstName Q1
SYMATTR Value BF199
SYMBOL res 640 176 R0
SYMATTR InstName R1
SYMATTR Value 6.8
SYMBOL res 48 112 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 216
SYMBOL voltage -96 144 M0
WINDOW 0 38 44 Left 2
WINDOW 3 -125 105 Left 2
WINDOW 123 35 74 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 2m 6.55Meg)
SYMATTR Value2 AC 2
SYMBOL ind2 640 -192 R0
WINDOW 0 -23 33 Left 2
WINDOW 3 -54 76 Left 2
SYMATTR InstName L3
SYMATTR Value 3.675µ
SYMATTR Type ind
SYMATTR SpiceLine Rser=1 Rpar=100k
SYMBOL res 480 -160 M0
SYMATTR InstName R4
SYMATTR Value 33k
SYMBOL res 448 0 R0
SYMATTR InstName R5
SYMATTR Value 33k
SYMBOL cap 416 192 M0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL voltage 832 0 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 9V
SYMBOL cap 576 -160 M0
SYMATTR InstName C3
SYMATTR Value 160p
SYMBOL npn 592 80 R0
SYMATTR InstName Q2
SYMATTR Value BF199
SYMBOL res 448 176 R0
SYMATTR InstName R3
SYMATTR Value 22k
SYMBOL cap 336 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL ind2 176 144 R0
SYMATTR InstName L2
SYMATTR Value 18µ
SYMATTR Type ind
SYMATTR SpiceLine Rser=0.3 Rpar=20k
SYMBOL ind2 64 144 R0
SYMATTR InstName L1
SYMATTR Value 18µ
SYMATTR Type ind
SYMATTR SpiceLine Rser=0.3 Rpar=20k
SYMBOL ind2 752 -192 M0
WINDOW 0 -31 43 Left 2
WINDOW 3 -45 70 Left 2
SYMATTR InstName L4
SYMATTR Value 57n
SYMATTR Type ind
SYMBOL res 928 -192 R0
SYMATTR InstName R6
SYMATTR Value 3k
SYMBOL voltage 352 0 R90
WINDOW 0 -32 56 VBottom 2
WINDOW 3 32 56 VTop 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value {agc}
TEXT -216 -40 Left 2 !;tran 0 100u 0 5n
TEXT -216 0 Left 2 !.ac dec 10k 6.1Meg 7Meg
TEXT 72 96 Left 2 !K1 L1 L2 0.95
TEXT 632 -216 Left 2 !K2 L3 L4 0.8
TEXT -216 -176 Left 2 !.step param agc list 3.7 1.97 1.746 1.636 1.557 1.497 1.45