Version 4
SHEET 1 1164 1128
WIRE -256 784 -384 784
WIRE -32 784 -64 784
WIRE 64 784 -32 784
WIRE -384 800 -384 784
WIRE -32 800 -32 784
WIRE -256 880 -288 880
WIRE -32 880 -64 880
WIRE -384 896 -384 880
WIRE -32 896 -32 880
WIRE -288 912 -288 880
WIRE -32 992 -32 976
FLAG -384 896 0
FLAG -288 912 0
FLAG 64 784 OUT
FLAG -384 784 IN
FLAG -32 992 0
SYMBOL LT1021-10 -160 832 R0
SYMATTR InstName U1
SYMBOL voltage -384 784 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL res -48 784 R0
SYMATTR InstName R1
SYMATTR Value {10K*(1-x)}
SYMBOL res -48 880 R0
SYMATTR InstName R2
SYMATTR Value {10K*x}
TEXT -400 976 Left 2 !.tran 1m startup\n.step param X .1 .9 .1