Version 4
SHEET 1 3232 1608
WIRE 880 -144 544 -144
WIRE 1296 -144 880 -144
WIRE 1456 -144 1296 -144
WIRE 1792 -144 1456 -144
WIRE 2208 -144 1792 -144
WIRE 2368 -144 2208 -144
WIRE 2736 -144 2480 -144
WIRE 3008 -144 2800 -144
WIRE 3152 -144 3008 -144
WIRE 1456 -64 1456 -144
WIRE 2368 -64 2368 -144
WIRE 3152 16 3152 -144
WIRE 976 96 848 96
WIRE 1296 96 1296 -144
WIRE 1296 96 1200 96
WIRE 1888 96 1760 96
WIRE 2208 96 2208 -144
WIRE 2208 96 2112 96
WIRE 1456 112 1456 16
WIRE 1456 112 1360 112
WIRE 2368 112 2368 16
WIRE 2368 112 2272 112
WIRE 3008 128 3008 -144
WIRE 1456 144 1456 112
WIRE 2368 144 2368 112
WIRE 976 160 912 160
WIRE 1360 160 1360 112
WIRE 1360 160 1200 160
WIRE 1888 160 1824 160
WIRE 2272 160 2272 112
WIRE 2272 160 2112 160
WIRE 544 176 544 -144
WIRE 976 224 944 224
WIRE 1360 224 1200 224
WIRE 1888 224 1856 224
WIRE 2272 224 2112 224
WIRE 3152 256 3152 96
WIRE 1360 272 1360 224
WIRE 1456 272 1456 224
WIRE 1456 272 1360 272
WIRE 2272 272 2272 224
WIRE 2368 272 2368 224
WIRE 2368 272 2272 272
WIRE 880 288 880 -144
WIRE 976 288 880 288
WIRE 1296 288 1200 288
WIRE 1792 288 1792 -144
WIRE 1888 288 1792 288
WIRE 2208 288 2112 288
WIRE 2736 304 2656 304
WIRE 2864 304 2800 304
WIRE 3008 304 3008 208
WIRE 3008 304 2944 304
WIRE 3088 304 3008 304
WIRE 1856 352 1856 224
WIRE 2480 352 2480 -144
WIRE 2480 352 1856 352
WIRE 912 384 912 160
WIRE 1456 384 1456 272
WIRE 1456 384 912 384
WIRE 1824 384 1824 160
WIRE 2368 384 2368 272
WIRE 2368 384 1824 384
WIRE 1296 400 1296 288
WIRE 1456 400 1456 384
WIRE 2208 400 2208 288
WIRE 2368 400 2368 384
WIRE 3008 416 3008 304
WIRE 944 512 944 224
WIRE 2656 512 2656 304
WIRE 2656 512 944 512
WIRE 544 592 544 256
WIRE 848 592 848 96
WIRE 848 592 544 592
WIRE 1296 592 1296 464
WIRE 1296 592 848 592
WIRE 1456 592 1456 464
WIRE 1456 592 1296 592
WIRE 1760 592 1760 96
WIRE 1760 592 1456 592
WIRE 2208 592 2208 464
WIRE 2208 592 1760 592
WIRE 2368 592 2368 464
WIRE 2368 592 2208 592
WIRE 3008 592 3008 496
WIRE 3008 592 2368 592
WIRE 3152 592 3152 352
WIRE 3152 592 3008 592
WIRE 544 656 544 592
FLAG 544 656 0
SYMBOL voltage 544 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 5
SYMBOL Misc\\NE555 2000 192 R0
SYMATTR InstName U2
SYMBOL cap 2192 400 R0
SYMATTR InstName C3
SYMATTR Value 0.1µ
SYMATTR SpiceLine V=100 Irms=1.4 Rser=0.0913262 Lser=0 mfg="KEMET" pn="C0805C104K1RAC" type="X7R"
SYMBOL res 2352 128 R0
SYMATTR InstName R3
SYMATTR Value 4.7K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res 2352 -80 R0
SYMATTR InstName R4
SYMATTR Value 4.7K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL cap 2352 400 R0
SYMATTR InstName C4
SYMATTR Value 204p
SYMATTR SpiceLine V=100 Irms=1.4 Rser=0.0913262 Lser=0
SYMBOL Misc\\NE555 1088 192 R0
SYMATTR InstName U4
SYMBOL cap 1280 400 R0
SYMATTR InstName C7
SYMATTR Value 0.1µ
SYMATTR SpiceLine V=100 Irms=1.4 Rser=0.0913262 Lser=0 mfg="KEMET" pn="C0805C104K1RAC" type="X7R"
SYMBOL res 1440 128 R0
SYMATTR InstName R7
SYMATTR Value 4.7K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL res 1440 -80 R0
SYMATTR InstName R8
SYMATTR Value 4.7K
SYMATTR SpiceLine tol=1 pwr=0.1
SYMBOL cap 1440 400 R0
SYMATTR InstName C6
SYMATTR Value 1µ
SYMATTR SpiceLine V=100 Irms=1.4 Rser=0.0913262 Lser=0 mfg="KEMET" pn="C0805C104K1RAC" type="X7R"
SYMBOL ind 3136 0 R0
SYMATTR InstName L1
SYMATTR Value 220µ
SYMATTR SpiceLine Ipk=0 Rser=0.22 Rpar=7296 Cpar=14.761p mfg="Würth Elektronik" pn="7447036 WE-FI"
SYMBOL npn 3088 256 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL res 2960 288 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 4.7k
SYMBOL cap 2800 288 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 1µ
SYMATTR SpiceLine V=100 Irms=3.96 Rser=0.0234673 Lser=0 mfg="KEMET" pn="C1825C105K1RAC" type="X7R"
SYMBOL cap 2800 -160 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 470p
SYMATTR SpiceLine V=6.3 Irms=12.3m Rser=6.32591 Lser=0 mfg="KEMET" pn="C0805C471K9RAC" type="X7R"
SYMBOL res 3024 224 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 3024 512 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R5
SYMATTR Value 100k
TEXT 576 -320 Left 7 !.tran 0 50mS 5mS
TEXT 2384 480 Left 2 ;180p + TrimC(4-70pF)
TEXT 1872 8 Left 6 ;500khz
TEXT 976 0 Left 6 ;Signal
TEXT 1472 232 Left 2 ;10k TrimR