Version 4
SHEET 1 880 716
WIRE -80 16 -128 16
WIRE 128 16 -80 16
WIRE 224 16 128 16
WIRE 416 16 224 16
WIRE 544 16 416 16
WIRE 672 16 544 16
WIRE -80 32 -80 16
WIRE 224 96 224 80
WIRE 672 96 672 16
WIRE 128 112 128 96
WIRE 416 112 416 96
WIRE -80 128 -80 112
WIRE 544 144 544 96
WIRE 608 144 544 144
WIRE 224 160 192 160
WIRE 352 160 224 160
WIRE 544 160 544 144
WIRE 224 176 224 160
WIRE 480 208 416 208
WIRE 672 224 672 192
WIRE 224 272 224 256
WIRE 544 272 544 256
WIRE 288 320 272 320
WIRE 304 320 288 320
WIRE 672 320 672 304
WIRE 672 320 352 320
WIRE 784 320 672 320
WIRE 672 336 672 320
WIRE 128 368 128 208
WIRE 128 368 80 368
WIRE 176 368 128 368
WIRE 544 384 544 368
WIRE -128 416 -160 416
WIRE -16 416 -48 416
WIRE 16 416 -16 416
WIRE 272 416 272 320
WIRE 272 416 240 416
WIRE 352 416 352 320
WIRE 784 416 784 400
WIRE 272 432 272 416
WIRE 416 432 416 208
WIRE 480 432 416 432
WIRE -160 448 -160 416
WIRE 672 448 672 416
WIRE 352 464 336 464
WIRE 416 464 416 432
WIRE 416 496 416 464
WIRE 544 496 544 480
WIRE 608 496 544 496
WIRE -96 528 -96 512
WIRE -160 544 -160 528
WIRE 80 544 80 464
WIRE 336 544 336 464
WIRE 336 544 80 544
WIRE 352 544 336 544
WIRE 544 544 544 496
WIRE -96 624 -96 608
WIRE -96 624 -128 624
WIRE 80 624 -96 624
WIRE 176 624 176 464
WIRE 176 624 80 624
WIRE 416 624 416 592
WIRE 416 624 176 624
WIRE 544 624 416 624
WIRE 672 624 672 544
WIRE 672 624 544 624
FLAG 224 272 0
FLAG 272 512 0
FLAG -16 496 0
FLAG -128 16 +
IOPIN -128 16 In
FLAG 544 368 +
IOPIN 544 368 In
FLAG 544 272 -
IOPIN 544 272 In
FLAG -128 624 -
IOPIN -128 624 In
FLAG 784 416 0
FLAG -80 128 0
FLAG -96 512 0
FLAG -160 544 0
SYMBOL pnp 192 208 R180
SYMATTR InstName Q1
SYMATTR Value BC557B
SYMBOL res 112 0 R0
SYMATTR InstName R1
SYMATTR Value 560
SYMBOL diode 208 16 R0
WINDOW 0 40 23 Left 2
WINDOW 3 40 46 Left 2
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL diode 208 96 R0
WINDOW 0 43 20 Left 2
WINDOW 3 36 42 Left 2
SYMATTR InstName D2
SYMATTR Value 1N4148
SYMBOL res 208 160 R0
SYMATTR InstName R2
SYMATTR Value 12k
SYMBOL pnp 240 464 R180
WINDOW 0 60 149 Left 2
WINDOW 3 10 122 Left 2
SYMATTR InstName Q2
SYMATTR Value BC557B
SYMBOL pnp 16 464 M180
WINDOW 0 14 147 Left 2
WINDOW 3 -1 119 Left 2
SYMATTR InstName Q3
SYMATTR Value BC557B
SYMBOL res -32 400 R0
WINDOW 0 38 71 Left 2
WINDOW 3 43 105 Left 2
SYMATTR InstName R3
SYMATTR Value 47k
SYMBOL res -144 432 R270
WINDOW 0 58 56 VTop 2
WINDOW 3 58 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 10
SYMBOL res 64 528 R0
SYMATTR InstName R5
SYMATTR Value 1.8k
SYMBOL res 256 416 R0
WINDOW 0 -35 46 Left 2
WINDOW 3 -34 75 Left 2
SYMATTR InstName R6
SYMATTR Value 1k
SYMBOL res 368 400 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R7
SYMATTR Value 9k
SYMBOL pnp 352 208 M180
WINDOW 0 68 76 Left 2
WINDOW 3 72 102 Left 2
SYMATTR InstName Q4
SYMATTR Value 2N2905A
SYMBOL res 400 0 R0
SYMATTR InstName R8
SYMATTR Value 33
SYMBOL pnp 480 256 M180
WINDOW 0 55 39 Left 2
WINDOW 3 52 68 Left 2
SYMATTR InstName Q5
SYMATTR Value BC557B
SYMBOL npn 352 496 R0
SYMATTR InstName Q6
SYMATTR Value 2N2219A
SYMBOL cap 416 448 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 0.9p
SYMBOL res 528 0 R0
SYMATTR InstName R9
SYMATTR Value 1.8k
SYMBOL res 528 528 R0
SYMATTR InstName R10
SYMATTR Value 1.8k
SYMBOL npn 480 384 R0
SYMATTR InstName Q7
SYMATTR Value BC547B
SYMBOL npn 608 96 R0
SYMATTR InstName Q8
SYMATTR Value BD139
SYMBOL pnp 608 544 M180
SYMATTR InstName Q9
SYMATTR Value BD140
SYMBOL res 656 208 R0
SYMATTR InstName R11
SYMATTR Value 8.2
SYMBOL res 656 320 R0
SYMATTR InstName R12
SYMATTR Value 8.2
SYMBOL res 768 304 R0
SYMATTR InstName R13
SYMATTR Value 50
SYMBOL cap 352 304 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 1.1p
SYMBOL voltage -80 16 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -96 512 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage -160 432 R0
WINDOW 0 40 16 Left 2
WINDOW 3 -24 -107 Left 2
WINDOW 123 36 46 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value SINE(0 1 1000K)
SYMATTR Value2 AC 1
TEXT -192 264 Left 2 !;ac dec 100 10 10000000
TEXT -206 700 Left 2 !.tran 1us