Version 4
SHEET 1 880 680
WIRE 128 144 112 144
WIRE 352 144 208 144
WIRE 432 144 352 144
WIRE 32 160 32 144
WIRE -16 192 -128 192
WIRE 208 208 208 144
WIRE -128 224 -128 192
WIRE -96 224 -128 224
WIRE -16 256 -16 192
WIRE 80 256 -16 256
WIRE 128 256 128 144
WIRE 128 256 80 256
WIRE 144 256 128 256
WIRE 432 272 432 144
WIRE 208 320 208 304
WIRE 288 320 208 320
WIRE 208 336 208 320
WIRE -96 352 -96 304
WIRE -96 352 -160 352
WIRE -48 352 -96 352
WIRE 80 352 80 320
WIRE 208 352 208 336
WIRE 208 352 80 352
WIRE 528 368 432 368
WIRE -160 432 -160 416
FLAG 32 160 0
FLAG 208 432 0
FLAG 80 416 0
FLAG -48 416 0
FLAG -96 416 0
FLAG -160 496 0
FLAG 352 224 0
FLAG 208 336 output
FLAG 432 448 0
SYMBOL npn 144 208 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL res 224 128 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 128 128 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 224 448 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R3
SYMATTR Value 2.2k
SYMBOL cap 64 256 R0
SYMATTR InstName C1
SYMATTR Value 560p
SYMBOL cap 64 352 R0
SYMATTR InstName C2
SYMATTR Value 560p
SYMBOL cap -64 352 R0
SYMATTR InstName C3
SYMATTR Value 160p
SYMBOL cap -112 352 R0
SYMATTR InstName C4
SYMATTR Value 220p
SYMBOL cap -176 352 R0
SYMATTR InstName C5
SYMATTR Value 10p
SYMBOL cap -176 432 R0
SYMATTR InstName C6
SYMATTR Value 20p
SYMBOL ind -112 208 R0
SYMATTR InstName L1
SYMATTR Value 9µ
SYMBOL Misc\\battery 352 128 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL res 384 304 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R4
SYMATTR Value 4.7k
SYMBOL npn 368 272 R0
SYMATTR InstName Q2
SYMBOL res 416 352 R0
SYMATTR InstName R5
SYMATTR Value 1k
TEXT -96 56 Left 0 !.tran 0 100u 50u startup