Version 4
SHEET 1 880 680
WIRE 528 -48 528 -96
WIRE 672 -48 672 -96
WIRE 176 144 176 48
WIRE 144 160 -224 160
WIRE 304 176 208 176
WIRE 544 176 304 176
WIRE 624 176 544 176
WIRE 144 192 -80 192
WIRE 304 208 304 176
WIRE -80 224 -80 192
WIRE 176 288 176 208
WIRE 304 304 304 288
WIRE 304 304 240 304
WIRE 304 320 304 304
WIRE -80 368 -80 304
WIRE -224 432 -224 160
WIRE 240 432 240 304
WIRE 240 432 -224 432
WIRE 304 432 304 400
FLAG -80 368 0
FLAG 304 432 0
FLAG 528 32 0
FLAG 672 32 0
FLAG 672 -96 -15
FLAG 528 -96 +15
FLAG 176 48 +15
FLAG 176 288 -15
FLAG 544 176 out
SYMBOL tl082 176 176 R0
SYMATTR InstName U1
SYMBOL res 288 192 R0
SYMATTR InstName R1
SYMATTR Value 39k
SYMBOL res 288 304 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL voltage -80 208 R0
WINDOW 3 24 44 Left 0
WINDOW 123 24 72 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value ""
SYMBOL voltage 528 -64 R0
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage 672 -64 R0
SYMATTR InstName V3
SYMATTR Value -15