Version 4
SHEET 1 880 680
WIRE -464 64 -560 64
WIRE -368 64 -464 64
WIRE -96 64 -368 64
WIRE 16 64 -96 64
WIRE -560 80 -560 64
WIRE -464 80 -464 64
WIRE 16 128 16 64
WIRE -368 144 -368 64
WIRE -560 192 -560 160
WIRE -464 192 -464 160
WIRE -432 192 -464 192
WIRE -96 240 -96 64
WIRE -368 256 -368 240
WIRE -128 256 -368 256
WIRE -464 272 -464 192
WIRE -368 272 -368 256
WIRE 16 272 16 208
WIRE 16 272 -64 272
WIRE -128 288 -224 288
WIRE 16 288 16 272
WIRE -224 304 -224 288
WIRE -560 384 -560 272
WIRE -464 384 -464 352
WIRE -464 384 -560 384
WIRE -368 384 -368 352
WIRE -368 384 -464 384
WIRE -224 384 -368 384
WIRE -96 384 -96 304
WIRE -96 384 -224 384
WIRE 16 384 16 368
WIRE 16 384 -96 384
WIRE -368 400 -368 384
FLAG -368 400 0
SYMBOL npn2 -432 144 R0
SYMATTR InstName Q1
SYMATTR Value 2N4124
SYMBOL res -480 64 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res -384 256 R0
SYMATTR InstName R2
SYMATTR Value 1e6
SYMBOL res -480 256 R0
SYMATTR InstName R3
SYMATTR Value 2k7
SYMBOL voltage -560 176 M0
WINDOW 3 -7 60 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 5
SYMATTR InstName V1
SYMBOL res -576 64 R0
SYMATTR InstName R4
SYMATTR Value 22
SYMBOL voltage -224 288 M0
WINDOW 3 -77 -47 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 -7 88 Left 0
SYMATTR Value SINE(.4 .4 10k)
SYMATTR InstName V2
SYMBOL res 0 272 R0
SYMATTR InstName R5
SYMATTR Value 10k
SYMBOL Robertugo\\comp5_all -96 208 R0
SYMATTR InstName U1
SYMATTR SpiceModel LM393
SYMBOL res 0 112 R0
SYMATTR InstName R6
SYMATTR Value 10k
TEXT 8 80 Right 0 !.tran 1m