Version 4
SHEET 1 880 680
WIRE -880 -272 -880 -224
WIRE -896 -432 -880 -432
WIRE -672 -256 -640 -256
WIRE -992 -416 -992 -432
WIRE -992 -512 -992 -544
WIRE -992 -544 -976 -544
WIRE -1104 -432 -1104 -416
WIRE -1088 -544 -1104 -544
WIRE -1104 -544 -1104 -512
WIRE -816 -544 -800 -544
WIRE -1104 -96 -1104 -112
WIRE -1104 -192 -1104 -224
WIRE -1104 -224 -1040 -224
WIRE -720 -336 -720 -304
WIRE -800 -448 -800 -432
WIRE -800 -432 -720 -432
WIRE -720 -432 -720 -448
WIRE -448 -240 -448 -304
WIRE -416 -304 -448 -304
WIRE -544 -272 -496 -272
WIRE -384 -240 -208 -240
WIRE -208 -448 -384 -448
WIRE -208 -352 -256 -352
WIRE -208 -336 -208 -352
WIRE -208 -368 -208 -352
WIRE -496 -240 -496 -272
WIRE -496 -272 -416 -272
WIRE -496 -272 -496 -304
WIRE -496 -448 -384 -448
WIRE -384 -448 -384 -320
WIRE -208 -240 -208 -224
WIRE -496 -176 -496 -160
WIRE -880 -368 -880 -384
WIRE -880 -112 -880 -144
WIRE -384 -240 -384 -256
WIRE -208 -256 -208 -240
WIRE -720 -416 -720 -432
WIRE -880 -432 -800 -432
WIRE -448 -160 -448 -144
WIRE -752 -112 -752 -128
WIRE -864 -224 -880 -224
WIRE -784 -240 -768 -240
WIRE -256 -352 -256 -144
WIRE -448 -144 -256 -144
WIRE -704 -128 -752 -128
WIRE -752 -128 -752 -192
WIRE -608 -32 -608 -48
WIRE -624 -128 -608 -128
WIRE -608 -112 -608 -128
WIRE -608 -32 -752 -32
WIRE -256 -128 -256 -144
WIRE -752 -16 -752 -32
WIRE -880 -224 -960 -224
WIRE -496 -368 -496 -448
WIRE -352 -288 -320 -288
WIRE -320 -288 -320 -416
WIRE -448 -304 -448 -320
WIRE -320 -288 -304 -288
WIRE -320 -416 -448 -416
WIRE -448 -416 -448 -400
WIRE -992 -96 -992 -144
WIRE -992 -144 -976 -144
WIRE -912 -144 -880 -144
WIRE -880 -144 -880 -224
WIRE -752 -128 -768 -128
WIRE -608 -128 -592 -128
WIRE -800 -528 -800 -544
WIRE -800 -544 -720 -544
WIRE -720 -528 -720 -544
WIRE -928 -272 -880 -272
WIRE -928 -384 -880 -384
WIRE -880 -384 -880 -432
WIRE -880 -272 -880 -288
WIRE -928 -272 -928 -304
WIRE -928 -368 -928 -384
WIRE -880 -16 -880 -32
FLAG -640 -256 g2
FLAG -1104 -416 0
FLAG -992 -416 0
FLAG -1088 -544 B
FLAG -896 -432 p
FLAG -976 -544 g2
FLAG -816 -544 B
FLAG -1104 -96 0
FLAG -208 -224 V-
FLAG -784 -240 g
FLAG -864 -224 a
FLAG -592 -128 p1
FLAG -880 -16 0
FLAG -768 -128 k
FLAG -256 -48 0
FLAG -544 -272 a
FLAG -304 -288 g
FLAG -496 -160 V-
FLAG -752 -16 0
FLAG -992 -96 0
SYMBOL Misc\\tetrode -720 -256 R0
SYMATTR InstName U1
SYMATTR Value 6V6GT
SYMBOL res -896 -384 R0
SYMATTR InstName R2
SYMATTR Value 150k
SYMBOL res -816 -544 R0
SYMATTR InstName R1
SYMATTR Value 5k
SYMBOL ind -736 -544 R0
SYMATTR InstName L1
SYMATTR Value 20
SYMBOL voltage -1104 -528 R0
WINDOW 3 30 97 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 250
SYMATTR InstName V1
SYMBOL voltage -992 -528 R0
WINDOW 3 26 93 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 250
SYMATTR InstName V2
SYMBOL current -1104 -112 R180
WINDOW 0 -52 74 Left 0
WINDOW 3 -177 -52 Left 0
WINDOW 123 59 -81 Right 0
WINDOW 39 0 0 Left 0
SYMATTR InstName I1
SYMATTR Value SINE(0 {ampl} 1k 10m)
SYMATTR Value2 AC 0.5m
SYMBOL voltage -720 -432 R0
WINDOW 3 36 73 Left 0
SYMATTR Value 0
SYMATTR InstName V4
SYMBOL voltage -208 -464 R0
SYMATTR InstName V6
SYMATTR Value 15
SYMBOL voltage -208 -352 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V7
SYMATTR Value 15
SYMBOL res -464 -256 R0
SYMATTR InstName R6
SYMATTR Value 680
SYMBOL res -464 -304 M180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R5
SYMATTR Value 22k
SYMBOL diode -480 -304 R180
WINDOW 0 24 72 Left 0
WINDOW 3 24 0 Left 0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode -480 -176 R180
WINDOW 0 24 72 Left 0
WINDOW 3 24 0 Left 0
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL voltage -944 -224 R90
WINDOW 0 -32 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName V3
SYMATTR Value 0
SYMBOL res -768 -128 R0
SYMATTR InstName R3
SYMATTR Value 2.22
SYMBOL res -608 -144 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 3.3k
SYMBOL cap -624 -112 R0
WINDOW 3 25 54 Left 0
WINDOW 0 27 11 Left 0
SYMATTR Value 1u
SYMATTR InstName C1
SYMBOL current -880 -112 R0
SYMATTR InstName I2
SYMATTR Value 1.75m
SYMBOL voltage -256 -144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V5
SYMATTR Value -12.5
SYMBOL diode -912 -160 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL cap -912 -368 M0
SYMATTR InstName C2
SYMATTR Value 5p
SYMBOL Opamps\\2pole -384 -288 R0
SYMATTR InstName U2
TEXT -1168 184 Left 0 !.lib ./doclib/ExcemTubesOK.lib\n.options method=Gear\n.option plotwinsize=0\n.save I(V3) V(a) V(g) V(k) V(p) I(V4)\n.param tstep=100m/65536\n.param ampl=0.5m\n.loadbias dstrb-6V6.bias\n.tran 0 221m 20m {tstep}\n.four 1k 7 I(V3) V(p)
TEXT -632 0 Left 0 ;6V6 R1=5.0k L1=20 I2=1.75m R3=2.22 V5=-12.5\n6L6 R1=2.5k L1=10 I2=1.76m R3=1.39 V5=-14