Version 4 SHEET 1 1520 680 WIRE -512 -48 -672 -48 WIRE 672 -48 -512 -48 WIRE 832 -48 672 -48 WIRE 672 0 672 -48 WIRE -400 48 -400 16 WIRE -320 48 -320 16 WIRE -240 48 -240 16 WIRE 624 64 32 64 WIRE 832 64 832 -48 WIRE -512 112 -512 -48 WIRE 672 112 672 96 WIRE 768 112 672 112 WIRE 672 144 672 112 WIRE -672 160 -672 -48 WIRE -400 176 -400 112 WIRE -400 176 -464 176 WIRE -320 176 -320 112 WIRE -320 176 -400 176 WIRE -240 176 -240 128 WIRE -240 176 -320 176 WIRE -176 176 -240 176 WIRE -48 176 -112 176 WIRE 32 176 32 64 WIRE 32 176 -48 176 WIRE 96 176 32 176 WIRE 224 176 160 176 WIRE 320 176 224 176 WIRE 320 192 320 176 WIRE 832 192 832 160 WIRE 928 192 832 192 WIRE -240 208 -240 176 WIRE 832 224 832 192 WIRE 672 240 672 224 WIRE 32 256 32 176 WIRE 224 256 224 176 WIRE -48 272 -48 176 WIRE 320 288 320 256 WIRE 432 288 320 288 WIRE 576 288 512 288 WIRE -512 304 -512 208 WIRE -240 304 -240 272 WIRE -240 304 -512 304 WIRE -512 320 -512 304 WIRE 320 320 320 288 WIRE 576 320 576 288 WIRE 832 320 832 304 WIRE -240 336 -240 304 WIRE -672 432 -672 240 WIRE -512 432 -512 400 WIRE -512 432 -672 432 WIRE -240 432 -240 400 WIRE -240 432 -512 432 WIRE -48 432 -48 336 WIRE -48 432 -240 432 WIRE 32 432 32 336 WIRE 32 432 -48 432 WIRE 224 432 224 336 WIRE 224 432 32 432 WIRE 320 432 320 384 WIRE 320 432 224 432 WIRE 576 432 576 400 WIRE 576 432 320 432 WIRE -672 448 -672 432 FLAG -672 448 0 FLAG -320 16 0 FLAG -400 16 0 FLAG -240 16 0 FLAG 672 240 0 FLAG 928 192 out IOPIN 928 192 Out FLAG 832 320 0 SYMBOL njf -464 112 M0 SYMATTR InstName J1 SYMATTR Value J310 SYMBOL res -496 304 M0 SYMATTR InstName R1 SYMATTR Value 1.5k SYMBOL cap -224 208 M0 SYMATTR InstName C1 SYMATTR Value 22p SYMBOL cap -224 336 M0 SYMATTR InstName C2 SYMATTR Value 33p SYMBOL ind 16 240 R0 SYMATTR InstName L1 SYMATTR Value 150n SYMATTR SpiceLine Rser=20m SYMBOL cap 96 160 M90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C3 SYMATTR Value 33p SYMBOL voltage -672 144 M0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 5V SYMBOL varactor 304 192 R0 SYMATTR InstName D2 SYMATTR Value KV1471 SYMATTR Type diode SYMBOL varactor 304 384 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D3 SYMATTR Value KV1471 SYMATTR Type diode SYMBOL res 240 240 M0 SYMATTR InstName R3 SYMATTR Value 100k SYMBOL res 416 272 M90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value 100k SYMBOL voltage 576 304 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V2 SYMATTR Value {u_var} SYMBOL schottky -304 112 R180 WINDOW 0 24 64 Left 2 WINDOW 3 -38 -7 Left 2 SYMATTR InstName D5 SYMATTR Value BAT43 SYMATTR Description Diode SYMATTR Type diode SYMBOL schottky -384 48 M0 WINDOW 0 22 71 Left 2 WINDOW 3 21 1 Left 2 SYMATTR InstName D6 SYMATTR Value BAT43 SYMATTR Description Diode SYMATTR Type diode SYMBOL cap -32 272 M0 SYMATTR InstName C7 SYMATTR Value 33p SYMBOL res -256 32 R0 SYMATTR InstName R2 SYMATTR Value 1Meg SYMBOL njf 624 0 R0 SYMATTR InstName J2 SYMATTR Value J310 SYMBOL res 656 128 R0 SYMATTR InstName R5 SYMATTR Value 1.5k SYMBOL Misc\\EuropeanVariCap -112 192 M270 WINDOW 0 43 32 VTop 2 WINDOW 3 -10 32 VBottom 2 SYMATTR InstName C5 SYMATTR Value 12p SYMBOL npn 768 64 R0 SYMATTR InstName Q1 SYMATTR Value BF199 SYMBOL res 816 208 R0 SYMATTR InstName R6 SYMATTR Value 150 TEXT 200 8 Right 2 !.tran 0 100u 0 400p startup TEXT 864 448 Right 2 !.step param u_var list 2V 3V 4V 5V