Version 4 SHEET 1 880 680 WIRE 176 64 64 64 WIRE 288 64 256 64 WIRE 64 112 64 64 WIRE 64 112 48 112 WIRE 288 144 288 64 WIRE -32 160 -32 112 WIRE 144 176 144 112 WIRE 144 176 128 176 WIRE 128 192 128 176 WIRE -32 320 -32 240 WIRE 128 320 128 272 WIRE 128 320 -32 320 WIRE 288 320 288 208 WIRE 288 320 128 320 WIRE 128 336 128 320 FLAG 128 336 0 SYMBOL ind 112 176 R0 SYMATTR InstName L1 SYMATTR Value 15m SYMBOL cap 272 144 R0 SYMATTR InstName C1 SYMATTR Value 20µ SYMBOL voltage -32 144 R0 WINDOW 123 24 132 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value2 AC 10 30 SYMATTR InstName V1 SYMATTR Value "" SYMBOL res 160 80 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R3 SYMATTR Value 20 SYMBOL res -48 128 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R1 SYMATTR Value 30 SYMBOL res 48 128 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 0 56 VBottom 2 SYMATTR InstName R2 SYMATTR Value 50 TEXT 384 280 Left 0 !.ac list 50