Version 4
SHEET 1 2172 832
WIRE 208 -336 -32 -336
WIRE 384 -336 208 -336
WIRE 480 -336 384 -336
WIRE 208 -304 208 -336
WIRE 480 -256 480 -336
WIRE -32 -176 -32 -336
WIRE 208 -176 208 -224
WIRE 480 -112 480 -176
WIRE 720 -112 480 -112
WIRE 880 -112 784 -112
WIRE 1424 -112 880 -112
WIRE 1680 -112 1424 -112
WIRE 480 -64 480 -112
WIRE -32 -16 -32 -96
WIRE 432 -16 -32 -16
WIRE -32 144 -32 -16
WIRE 448 144 448 32
WIRE 544 144 448 144
WIRE 688 144 608 144
WIRE 848 144 688 144
WIRE 1232 144 848 144
WIRE -80 192 -320 192
WIRE 1424 208 1424 -112
WIRE 848 224 848 144
WIRE 448 240 448 144
WIRE 1232 304 1232 144
WIRE 1680 304 1680 -112
WIRE -320 352 -320 192
WIRE 1184 352 1136 352
WIRE 1632 352 1584 352
WIRE -64 384 -64 240
WIRE 848 384 848 304
WIRE 1424 384 1424 288
WIRE -320 592 -320 432
WIRE -64 592 -64 464
WIRE -64 592 -320 592
WIRE 448 592 448 320
WIRE 448 592 -64 592
WIRE 848 592 848 464
WIRE 848 592 448 592
WIRE 1136 592 1136 352
WIRE 1136 592 848 592
WIRE 1200 592 1200 400
WIRE 1200 592 1136 592
WIRE 1424 592 1424 464
WIRE 1424 592 1200 592
WIRE 1584 592 1584 352
WIRE 1584 592 1424 592
WIRE 1648 592 1648 400
WIRE 1648 592 1584 592
WIRE -64 640 -64 592
FLAG -64 640 0
FLAG 208 -176 0
FLAG 384 -336 +235VDC
FLAG 880 -112 out_non_inv
FLAG 688 144 out_inv
SYMBOL Misc\\triode -32 192 R0
SYMATTR InstName U1
SYMATTR Value 12AU7
SYMBOL Misc\\triode 480 -16 R0
SYMATTR InstName U2
SYMATTR Value 12AU7
SYMBOL Misc\\EuropeanResistor -48 -192 R0
SYMATTR InstName R1
SYMATTR Value 220K
SYMBOL Misc\\EuropeanResistor 464 -272 R0
SYMATTR InstName R2
SYMATTR Value 22K
SYMBOL Misc\\EuropeanResistor 432 224 R0
SYMATTR InstName R3
SYMATTR Value 22K
SYMBOL Misc\\EuropeanResistor -80 368 R0
SYMATTR InstName R5
SYMATTR Value 4700
SYMBOL voltage 208 -320 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 44 Left 2
SYMATTR InstName V1
SYMATTR Value 235
SYMBOL voltage -320 336 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
WINDOW 3 1 -201 Left 2
SYMATTR InstName V2
SYMATTR Value SINE(0 2 1K 0.5m 0 0 9)
SYMBOL cap 608 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 100n
SYMBOL cap 784 -128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL Misc\\triode 1232 352 R0
SYMATTR InstName U3
SYMATTR Value 6DJ8
SYMBOL Misc\\triode 1680 352 R0
SYMATTR InstName U4
SYMATTR Value 6DJ8
SYMBOL voltage 848 480 R180
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 24 -12 Left 2
SYMATTR InstName V3
SYMATTR Value 10
SYMBOL voltage 1424 480 R180
WINDOW 0 24 96 Left 2
WINDOW 3 24 16 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 10
SYMBOL Misc\\EuropeanResistor 832 208 R0
SYMATTR InstName R4
SYMATTR Value 470K
SYMBOL Misc\\EuropeanResistor 1408 192 R0
SYMATTR InstName R6
SYMATTR Value 470K
TEXT -304 720 Left 2 !.INC Koren_Tubes.cir
TEXT -304 752 Left 2 !.tran 0 10m 0 2u
TEXT -312 168 Left 2 ;4Vpp
TEXT 1272 288 Left 2 ;Diode
TEXT 1720 288 Left 2 ;Diode
TEXT 520 -80 Left 2 ;Katodyn
TEXT 872 376 Left 2 ;-10VDC
TEXT 1448 376 Left 2 ;-10VDC