Version 4
SHEET 1 880 680
WIRE 48 96 -144 96
WIRE 48 112 48 96
WIRE -144 128 -144 96
WIRE 0 160 -16 160
WIRE 144 176 96 176
WIRE 0 192 -64 192
WIRE 144 192 144 176
WIRE -64 208 -64 192
WIRE -16 256 -16 160
WIRE 16 256 16 240
WIRE 16 256 -16 256
WIRE -16 272 -16 256
WIRE -144 304 -144 208
WIRE -64 304 -64 288
WIRE -64 304 -144 304
WIRE 16 304 16 256
WIRE 16 304 -64 304
WIRE 144 304 144 272
WIRE 144 304 16 304
WIRE 16 320 16 304
FLAG -16 272 0
SYMBOL voltage -144 112 R0
WINDOW 0 -16 57 Left 0
SYMATTR InstName Vp
SYMATTR Value 0
SYMBOL voltage -64 192 R0
WINDOW 0 -18 61 Left 0
SYMATTR InstName Vg1
SYMATTR Value 0
SYMBOL voltage 144 176 R0
WINDOW 0 -47 15 Left 0
WINDOW 3 -20 61 Left 0
SYMATTR InstName Vg2
SYMATTR Value 360
SYMBOL Valve\\Pentode 48 176 R0
WINDOW 0 -77 -52 Left 0
WINDOW 38 37 111 Center 0
SYMATTR InstName U1
SYMATTR SpiceModel EL34Pent
TEXT -152 320 Left 0 !.dc Vp 0 2K 100 Vg1 0 -40 5