Version 4
SHEET 1 880 680
WIRE 352 -16 240 -16
WIRE 352 0 352 -16
WIRE 240 80 240 -16
WIRE 192 128 64 128
WIRE 352 128 352 80
WIRE 208 224 208 176
WIRE 64 240 64 208
FLAG 208 224 0
FLAG 64 240 0
FLAG 352 128 0
SYMBOL Misc\\triode 240 128 R0
SYMATTR InstName U1
SYMATTR Value NH12AX7
SYMBOL voltage 352 -16 R0
SYMATTR InstName V1
SYMBOL voltage 64 112 R0
SYMATTR InstName V2
TEXT 30 264 Left 0 !.dc V1 0 500 1 V2 -5 0 .5
TEXT 40 312 Left 0 !.inc dmtriodep.inc