Version 4 SHEET 1 1304 1456 WIRE -512 128 -656 128 WIRE -512 144 -512 128 WIRE -656 160 -656 128 WIRE -704 208 -752 208 WIRE -752 352 -752 208 WIRE -688 352 -688 336 WIRE -688 352 -752 352 WIRE -624 352 -688 352 WIRE -512 352 -560 352 WIRE -496 352 -512 352 WIRE -688 368 -688 352 WIRE -832 416 -944 416 WIRE -816 416 -832 416 WIRE -512 416 -512 352 WIRE -944 480 -944 416 WIRE -832 480 -832 416 WIRE -720 480 -720 464 WIRE -688 480 -720 480 WIRE -944 576 -944 560 WIRE -832 576 -832 560 WIRE -832 576 -944 576 WIRE -688 576 -688 560 WIRE -688 576 -832 576 WIRE -512 576 -512 496 WIRE -512 576 -688 576 WIRE -688 592 -688 576 WIRE -512 640 -688 640 WIRE -512 656 -512 640 WIRE -688 704 -688 640 WIRE -688 864 -688 784 WIRE -624 864 -688 864 WIRE -512 864 -560 864 WIRE -496 864 -512 864 WIRE -688 880 -688 864 WIRE -832 928 -944 928 WIRE -816 928 -832 928 WIRE -512 944 -512 864 WIRE -944 992 -944 928 WIRE -832 992 -832 928 WIRE -720 992 -720 976 WIRE -688 992 -720 992 WIRE -688 1008 -688 992 WIRE -944 1088 -944 1072 WIRE -832 1088 -832 1072 WIRE -832 1088 -944 1088 WIRE -688 1088 -832 1088 WIRE -512 1088 -512 1024 WIRE -512 1088 -688 1088 WIRE -688 1104 -688 1088 FLAG -688 592 0 FLAG -512 224 0 FLAG -688 1104 0 FLAG -512 736 0 FLAG -496 352 OUTA IOPIN -496 352 Out FLAG -496 864 OUTR IOPIN -496 864 Out SYMBOL Misc\\triode -688 416 R0 WINDOW 0 -97 -95 Left 0 WINDOW 3 -150 -60 Left 0 SYMATTR InstName U2 SYMATTR Value 12AT7 SYMBOL Misc\\battery -512 128 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 300 SYMBOL res -704 240 R0 WINDOW 0 -36 40 Left 0 WINDOW 3 -41 76 Left 0 SYMATTR InstName R1 SYMATTR Value 250 SYMBOL res -672 576 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R4 SYMATTR Value 250 SYMBOL res -720 400 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R6 SYMATTR Value 220 SYMBOL res -816 576 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R7 SYMATTR Value 100k SYMBOL Misc\\signal -944 464 M0 WINDOW 123 24 132 Left 0 WINDOW 39 24 160 Left 0 SYMATTR Value2 AC 1 SYMATTR SpiceLine Rser=1k SYMATTR InstName V2 SYMATTR Value SINE(0 .65 1K) SYMBOL cap -560 336 R90 WINDOW 0 9 7 VBottom 0 WINDOW 3 36 10 VTop 0 SYMATTR InstName C2 SYMATTR Value 1u SYMBOL Misc\\triode -688 928 R0 WINDOW 0 -51 -95 Left 0 WINDOW 3 -101 -60 Left 0 SYMATTR InstName U4 SYMATTR Value 12AT7 SYMBOL Misc\\battery -512 640 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V3 SYMATTR Value 300 SYMBOL res -704 688 R0 WINDOW 0 -36 40 Left 0 WINDOW 3 -41 76 Left 0 SYMATTR InstName R2 SYMATTR Value 27k SYMBOL res -720 912 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R16 SYMATTR Value 220 SYMBOL res -816 1088 R180 WINDOW 0 36 76 Left 0 WINDOW 3 36 40 Left 0 SYMATTR InstName R17 SYMATTR Value 100k SYMBOL Misc\\signal -944 976 M0 WINDOW 123 24 132 Left 0 WINDOW 39 24 160 Left 0 SYMATTR Value2 AC 1 SYMATTR SpiceLine Rser=1k SYMATTR InstName V4 SYMATTR Value SINE(0 .65 1K) SYMBOL cap -560 848 R90 WINDOW 0 9 7 VBottom 0 WINDOW 3 36 10 VTop 0 SYMATTR InstName C5 SYMATTR Value 1u SYMBOL res -704 992 R0 SYMATTR InstName R14 SYMATTR Value 250 SYMBOL res -528 928 R0 SYMATTR InstName R3 SYMATTR Value 1Meg SYMBOL Misc\\triode -656 208 R0 WINDOW 0 -97 -95 Left 0 WINDOW 3 -101 -60 Left 0 SYMATTR InstName U1 SYMATTR Value 12AT7 SYMBOL res -528 400 R0 SYMATTR InstName R5 SYMATTR Value 1Meg TEXT -1088 696 Left 0 !.inc dmtriodep.inc TEXT -1112 752 Left 0 !.options plotwinsize=0 TEXT -1120 800 Left 0 !.tran 0 10m 6m 1u TEXT -456 288 Left 0 !.four 1k V(OUTA) TEXT -536 800 Left 0 !.four 1k V(OUTR)