Version 4
SHEET 1 924 680
WIRE 336 -208 96 -208
WIRE 432 -208 336 -208
WIRE 544 -208 432 -208
WIRE 432 -112 432 -208
WIRE 336 -64 336 -128
WIRE 336 -64 304 -64
WIRE 368 -64 336 -64
WIRE -16 16 -80 16
WIRE 96 16 96 -128
WIRE 96 16 64 16
WIRE 96 80 96 16
WIRE 432 80 432 64
WIRE 512 80 432 80
WIRE 576 80 576 64
WIRE 96 96 96 80
WIRE 432 96 432 80
WIRE 336 112 336 -64
WIRE -48 144 -128 144
WIRE 48 144 32 144
WIRE -128 176 -128 144
WIRE 576 176 576 80
WIRE 96 224 96 176
WIRE 272 224 272 -64
WIRE 272 224 96 224
WIRE 336 224 336 192
WIRE 336 224 304 224
WIRE 368 224 336 224
WIRE -128 272 -128 256
WIRE -80 272 -80 16
WIRE -80 272 -128 272
WIRE -16 272 -80 272
WIRE 96 272 96 224
WIRE 96 272 48 272
WIRE -128 288 -128 272
WIRE 96 288 96 272
WIRE 336 304 336 224
WIRE 432 320 432 272
FLAG -128 368 0
FLAG 96 368 0
FLAG 336 384 0
FLAG 432 320 0
FLAG 624 -208 0
FLAG 576 256 0
SYMBOL npn2 368 -112 R0
SYMATTR InstName Q2
SYMATTR Value BF199
SYMBOL pnp2 368 176 R0
SYMATTR InstName Q3
SYMATTR Value BF324
SYMBOL res 80 -224 R0
SYMATTR InstName R1
SYMATTR Value 47
SYMBOL res 80 272 R0
SYMATTR InstName R2
SYMATTR Value 270
SYMBOL res 48 128 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 47
SYMBOL res -112 272 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R4
SYMATTR Value 470k
SYMBOL res -112 384 R180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R5
SYMATTR Value 2.7k
SYMBOL cap -192 160 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C1
SYMATTR Value 15p
SYMBOL cap -16 288 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C2
SYMATTR Value 33n
SYMBOL cap 272 -48 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C3
SYMATTR Value 100n
SYMBOL cap 272 240 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL res 320 -224 R0
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL res 320 96 R0
SYMATTR InstName R7
SYMATTR Value 470
SYMBOL res 320 288 R0
SYMATTR InstName R8
SYMATTR Value 1k
SYMBOL res 416 -32 R0
SYMATTR InstName R9
SYMATTR Value 10
SYMBOL res 416 80 R0
SYMATTR InstName R10
SYMATTR Value 10
SYMBOL cap 512 96 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C5
SYMATTR Value 100n
SYMBOL voltage 528 -208 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 -32 56 VBottom 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 12V
SYMBOL res -32 32 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R11
SYMATTR Value 4.7k
SYMBOL njf 48 80 R0
SYMATTR InstName J2
SYMATTR Value BF246A_XN
SYMBOL res 560 160 R0
SYMATTR InstName R12
SYMATTR Value 1000
TEXT -208 408 Left 0 !.ac oct 1001 10 40000000