Version 4
SHEET 1 880 680
WIRE 320 48 128 48
WIRE 128 128 128 48
WIRE 320 128 320 48
WIRE 272 192 240 192
WIRE 320 240 320 224
WIRE 128 336 128 208
WIRE 240 336 240 192
WIRE 320 336 320 320
FLAG 320 336 0
FLAG 128 336 0
FLAG 240 336 0
SYMBOL voltage 128 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 1
SYMBOL njf 272 128 R0
SYMATTR InstName J1
SYMATTR Value 2N3819
SYMBOL res 304 224 R0
SYMATTR InstName R1
SYMATTR Value 1k
TEXT 40 88 Left 0 !.dc V1 0 10 0.01