Version 4
SHEET 1 880 680
WIRE -32 0 -176 0
WIRE -32 32 -32 0
WIRE -176 112 -176 0
WIRE -32 144 -32 112
WIRE 96 144 -32 144
WIRE -32 176 -32 144
WIRE 96 176 96 144
WIRE -176 288 -176 192
WIRE -32 288 -32 256
WIRE -32 288 -176 288
WIRE 96 288 96 256
WIRE 96 288 -32 288
WIRE -176 320 -176 288
FLAG -176 320 0
FLAG 96 144 out
SYMBOL res -48 16 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -48 160 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 80 160 R0
SYMATTR InstName R3
SYMATTR Value {RL}
SYMBOL voltage -176 96 R0
SYMATTR InstName V1
SYMATTR Value 2
TEXT -176 -112 Left 2 !.step param RL 100 2k 10
TEXT -176 -152 Left 2 !.op