Version 4 SHEET 1 880 680 WIRE 224 64 16 64 WIRE 16 112 16 64 WIRE 224 144 224 64 WIRE 448 192 272 192 FLAG 224 224 0 FLAG 16 192 0 SYMBOL potentiometer 208 128 R0 SYMATTR InstName U1 SYMBOL voltage 16 96 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 15 TEXT -18 248 Left 2 !.tran 1ms