Version 4 SHEET 1 1268 716 WIRE -256 112 -256 -368 WIRE -256 240 -256 112 WIRE -256 560 -256 336 WIRE -160 112 -256 112 WIRE -160 160 -160 112 WIRE -160 288 -192 288 WIRE -160 288 -160 256 WIRE -160 384 -160 288 WIRE -160 560 -256 560 WIRE -160 560 -160 480 WIRE -128 112 -160 112 WIRE -48 112 -64 112 WIRE 64 -368 -256 -368 WIRE 64 -320 64 -368 WIRE 64 -112 64 -224 WIRE 64 0 64 -112 WIRE 64 112 32 112 WIRE 64 112 64 96 WIRE 64 208 -96 208 WIRE 64 208 64 112 WIRE 64 256 64 208 WIRE 64 432 -96 432 WIRE 64 432 64 352 WIRE 64 448 64 432 WIRE 64 560 -160 560 WIRE 64 560 64 544 WIRE 160 48 128 48 WIRE 160 96 160 48 WIRE 160 208 64 208 WIRE 160 208 160 160 WIRE 160 432 64 432 WIRE 160 480 128 496 WIRE 160 480 160 432 WIRE 240 -112 64 -112 WIRE 240 -80 240 -112 WIRE 240 304 128 304 WIRE 240 304 240 16 WIRE 240 336 240 304 WIRE 240 432 160 432 WIRE 304 -368 64 -368 WIRE 304 -320 304 -368 WIRE 304 -176 304 -224 WIRE 320 304 240 304 WIRE 320 384 304 384 WIRE 320 384 320 304 WIRE 368 -272 128 -272 WIRE 400 -272 368 -272 WIRE 400 -176 304 -176 WIRE 400 -176 400 -272 WIRE 400 -144 400 -176 WIRE 400 -32 304 -32 WIRE 400 -32 400 -64 WIRE 400 128 400 -32 WIRE 400 256 400 224 WIRE 400 288 400 256 WIRE 400 432 400 384 WIRE 400 560 64 560 WIRE 400 560 400 512 WIRE 448 48 160 48 WIRE 448 48 448 -32 WIRE 512 -368 304 -368 WIRE 512 -240 512 -368 WIRE 512 -176 400 -176 WIRE 512 -144 512 -176 WIRE 512 -32 448 -32 WIRE 512 -32 512 -64 WIRE 512 0 512 -32 WIRE 512 256 400 256 WIRE 512 256 512 96 WIRE 512 336 464 336 WIRE 512 416 512 336 WIRE 560 -240 512 -240 WIRE 560 416 512 416 WIRE 560 560 400 560 WIRE 576 -368 512 -368 WIRE 624 -368 576 -368 WIRE 624 -288 624 -368 WIRE 624 -144 624 -192 WIRE 624 48 576 48 WIRE 624 48 624 -64 WIRE 624 64 624 48 WIRE 624 176 464 176 WIRE 624 176 624 144 WIRE 624 224 624 176 WIRE 624 336 512 336 WIRE 624 336 624 304 WIRE 624 368 624 336 WIRE 624 560 560 560 WIRE 624 560 624 464 WIRE 672 176 624 176 WIRE 704 -368 624 -368 WIRE 752 560 624 560 WIRE 784 176 752 176 WIRE 848 -368 784 -368 WIRE 848 -336 848 -368 WIRE 848 -240 848 -256 WIRE 848 560 832 560 WIRE 848 592 848 560 FLAG 848 592 0 FLAG 784 176 ADJ FLAG 848 -240 0 FLAG 576 -368 REF FLAG 560 560 MINUS SYMBOL npn -192 240 M0 SYMATTR InstName Q1 SYMATTR Value N SYMBOL npn -96 160 M0 SYMATTR InstName Q2 SYMATTR Value N SYMBOL npn -96 384 M0 SYMATTR InstName Q3 SYMATTR Value N SYMBOL npn 128 256 M0 SYMATTR InstName Q4 SYMATTR Value N SYMBOL npn 128 448 M0 SYMATTR InstName Q5 SYMATTR Value N SYMBOL npn 304 336 M0 SYMATTR InstName Q6 SYMATTR Value N SYMBOL npn 560 -288 R0 SYMATTR InstName Q11 SYMATTR Value N SYMBOL npn 464 288 M0 SYMATTR InstName Q12 SYMATTR Value N SYMBOL npn 560 368 R0 SYMATTR InstName Q13 SYMATTR Value N SYMBOL npn 576 0 M0 SYMATTR InstName Q10 SYMATTR Value N SYMBOL npn 464 128 M0 SYMATTR InstName Q9 SYMATTR Value N 3.63 SYMBOL pnp 128 96 R180 WINDOW 0 45 57 Left 0 WINDOW 3 42 30 Left 0 SYMATTR InstName Q7 SYMATTR Value P SYMBOL pnp 304 16 R180 WINDOW 0 50 68 Left 0 WINDOW 3 54 38 Left 0 SYMATTR InstName Q8 SYMATTR Value P SYMBOL res 48 96 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R1 SYMATTR Value 10K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 384 -160 R0 SYMATTR InstName R2 SYMATTR Value 24K SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 496 -160 R0 SYMATTR InstName R3 SYMATTR Value 24k SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 608 -160 R0 SYMATTR InstName R4 SYMATTR Value 6.6k SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 608 48 R0 SYMATTR InstName R5 SYMATTR Value 500 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 768 160 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 37 56 VTop 0 SYMATTR InstName R6 SYMATTR Value 30k SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 608 208 R0 SYMATTR InstName R7 SYMATTR Value 6.6k SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL res 384 416 R0 SYMATTR InstName R8 SYMATTR Value 720 SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL voltage 848 -352 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value 20 SYMATTR InstName V1 SYMBOL res 800 -384 R90 WINDOW 0 0 56 VBottom 0 WINDOW 3 32 56 VTop 0 SYMATTR InstName R9 SYMATTR Value 3.6k SYMATTR SpiceLine tol=1 pwr=0.1 SYMBOL pnp 368 -224 R180 WINDOW 0 42 63 Left 0 WINDOW 3 39 33 Left 0 SYMATTR InstName Q7b SYMATTR Value P SYMBOL pnp 128 -224 R180 WINDOW 0 42 63 Left 0 WINDOW 3 39 33 Left 0 SYMATTR InstName Q7a SYMATTR Value P SYMBOL res 736 576 R270 WINDOW 0 32 56 VTop 0 WINDOW 3 0 56 VBottom 0 SYMATTR InstName R10 SYMATTR Value 1µ SYMBOL cap -128 128 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C3 SYMATTR Value 20p SYMBOL cap 144 96 R0 SYMATTR InstName C1 SYMATTR Value 30p TEXT -216 672 Left 0 !.model N NPN(BF=125 Cje=.5p Cjc=.5p Rb=500 NF=1.074)\n.model P LPNP(BF=25 Cje=.3p Cjc=1.5p Rb=250) TEXT -208 624 Left 0 !.dc temp -55 125 1