Version 4
SHEET 1 1320 812
WIRE 80 -32 80 -64
WIRE 80 64 80 48
WIRE 112 64 80 64
WIRE 208 64 176 64
WIRE 80 80 80 64
WIRE 208 96 208 64
WIRE -128 128 -144 128
WIRE -48 128 -64 128
WIRE 32 128 -48 128
WIRE 320 128 272 128
WIRE -144 144 -144 128
WIRE 272 176 272 128
WIRE 272 176 208 176
WIRE 48 208 48 176
WIRE 112 208 48 208
WIRE 112 224 112 208
WIRE -144 240 -144 224
WIRE -48 240 -48 128
WIRE 48 240 48 208
WIRE -144 352 -144 320
WIRE -48 352 -48 320
WIRE 48 352 48 320
WIRE 112 352 112 288
WIRE 208 352 208 256
WIRE -144 528 -144 464
WIRE -144 688 -144 608
FLAG -144 352 0
FLAG -48 352 0
FLAG 48 352 0
FLAG 112 352 0
FLAG 208 352 0
FLAG -144 688 0
FLAG 80 -64 C
IOPIN 80 -64 In
FLAG -144 464 C
IOPIN -144 464 In
FLAG 320 128 out
SYMBOL Misc\\triode 80 128 R0
WINDOW 0 9 -87 Left 2
SYMATTR InstName U1
SYMATTR Value 6SN7
SYMBOL res 64 -48 R0
WINDOW 3 -74 78 Left 2
WINDOW 0 -66 40 Left 2
SYMATTR Value 47K
SYMATTR InstName R1
SYMBOL res 32 224 R0
SYMATTR InstName R3
SYMATTR Value 820
SYMBOL res -64 224 R0
SYMATTR InstName R5
SYMATTR Value 1e6
SYMBOL res -160 128 R0
WINDOW 0 36 40 Invisible 2
SYMATTR InstName Ri
SYMATTR Value 10k
SYMBOL cap -64 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 470n
SYMBOL voltage -144 224 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 -173 88 Left 2
SYMATTR Value2 AC 1
SYMATTR Value SINE(0 0.5 1k)
SYMATTR InstName V1
SYMBOL cap 96 224 R0
SYMATTR InstName C5
SYMATTR Value 100µ
SYMBOL res 192 160 R0
WINDOW 0 36 40 Invisible 2
SYMATTR InstName R10
SYMATTR Value 22K
SYMBOL voltage -144 512 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 280
SYMBOL cap 176 48 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 470n
SYMBOL res 192 80 R0
WINDOW 0 36 40 Invisible 2
SYMATTR InstName R2
SYMATTR Value 68K
TEXT -224 -120 Left 2 !.INC Koren_Tubes.inc
TEXT -224 -88 Left 2 !.tran 0 100m 95m
TEXT -224 -64 Left 2 !;ac oct 1000 10 22k