Version 4 SHEET 1 920 680 WIRE 560 -384 160 -384 WIRE 560 -336 560 -384 WIRE 160 -320 160 -384 WIRE 560 -176 560 -256 WIRE 624 -176 560 -176 WIRE 560 -80 560 -176 WIRE 336 -16 256 -16 WIRE 416 -16 336 -16 WIRE 464 -16 416 -16 WIRE 512 -16 464 -16 WIRE 336 0 336 -16 WIRE 464 48 464 -16 WIRE 80 80 -16 80 WIRE 144 80 80 80 WIRE 256 80 256 -16 WIRE 256 80 208 80 WIRE -16 112 -16 80 WIRE 336 112 336 80 WIRE 80 128 80 80 WIRE 464 128 464 112 WIRE 560 128 560 16 WIRE 560 128 464 128 WIRE 560 176 560 128 WIRE 464 192 464 128 WIRE 560 304 560 256 WIRE 560 416 560 384 FLAG -16 192 0 FLAG 80 192 0 FLAG 464 256 0 FLAG 560 416 0 FLAG 688 -176 0 FLAG 160 -240 0 FLAG 416 -16 Vb FLAG 336 112 0 SYMBOL ind -32 96 R0 SYMATTR InstName L1 SYMATTR Value 60n SYMBOL cap 64 128 R0 SYMATTR InstName C1 SYMATTR Value 20p SYMBOL cap 208 64 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 6p8 SYMBOL cap 480 112 R180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C3 SYMATTR Value 6p8 SYMBOL cap 480 256 R180 WINDOW 0 24 56 Left 2 WINDOW 3 24 8 Left 2 SYMATTR InstName C4 SYMATTR Value 6p8 SYMBOL cap 688 -160 M270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C5 SYMATTR Value 100n SYMBOL res 544 288 R0 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL res 544 -352 R0 SYMATTR InstName R3 SYMATTR Value 100 SYMBOL voltage 160 -336 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 5 SYMBOL res 320 -16 R0 SYMATTR InstName R4 SYMATTR Value 100k SYMBOL njf 512 -80 R0 SYMATTR InstName J1 SYMATTR Value 2N3819 SYMBOL ind 544 160 R0 SYMATTR InstName L2 SYMATTR Value 1ยต TEXT -36 296 Left 2 !.tran 1 TEXT -272 376 Left 2 !.ic V(Vb)=4