Version 4 SHEET 1 880 768 WIRE -208 0 -288 0 WIRE -160 0 -208 0 WIRE 0 0 -80 0 WIRE 160 0 0 0 WIRE 448 0 160 0 WIRE 704 0 448 0 WIRE -288 16 -288 0 WIRE -208 16 -208 0 WIRE 160 32 160 0 WIRE 448 32 448 0 WIRE 0 80 -64 80 WIRE 96 80 0 80 WIRE 384 80 352 80 WIRE 400 80 384 80 WIRE -272 128 -288 128 WIRE -208 128 -208 96 WIRE -128 128 -208 128 WIRE 352 128 352 80 WIRE 352 128 160 128 WIRE 16 176 -64 176 WIRE 160 176 160 128 WIRE 160 176 80 176 WIRE 448 176 448 128 WIRE 704 192 704 0 WIRE -208 208 -208 128 WIRE 160 224 160 176 WIRE 160 224 48 224 WIRE 160 272 160 224 WIRE 448 288 448 256 WIRE 448 288 416 288 WIRE 528 288 448 288 WIRE 624 288 592 288 WIRE 448 304 448 288 WIRE 48 320 48 304 WIRE 96 320 48 320 WIRE 48 336 48 320 WIRE -208 368 -208 288 WIRE -176 368 -208 368 WIRE -64 368 -64 176 WIRE -64 368 -112 368 WIRE -288 384 -288 128 WIRE 160 416 160 368 WIRE 160 416 48 416 WIRE -208 432 -208 368 WIRE 448 432 448 384 WIRE -64 448 -64 368 WIRE 336 448 336 288 WIRE 336 448 -64 448 WIRE 160 480 160 416 WIRE 304 480 160 480 WIRE 384 480 304 480 WIRE 624 480 624 288 WIRE 624 480 576 480 WIRE 304 512 304 480 WIRE 624 512 624 480 WIRE 576 592 576 480 WIRE 576 592 304 592 WIRE -288 624 -288 464 WIRE -208 624 -208 512 WIRE -208 624 -288 624 WIRE 448 624 448 528 WIRE 448 624 -208 624 WIRE 624 624 624 592 WIRE 624 624 448 624 WIRE 704 624 704 272 WIRE 704 624 624 624 WIRE 448 640 448 624 FLAG 448 640 0 FLAG -288 80 0 SYMBOL npn 384 32 R0 SYMATTR InstName Q1 SYMATTR Value BC337-25 SYMBOL pnp 384 528 M180 SYMATTR InstName Q2 SYMATTR Value BC327-25 SYMBOL npn 96 272 R0 SYMATTR InstName Q3 SYMATTR Value BC547B SYMBOL pnp 96 128 M180 SYMATTR InstName Q4 SYMATTR Value BC327-25 SYMBOL npn -128 80 R0 SYMATTR InstName Q5 SYMATTR Value BC547B SYMBOL Misc\\EuropeanResistor 432 160 R0 SYMATTR InstName R1 SYMATTR Value 1 SYMBOL Misc\\EuropeanResistor 432 288 R0 SYMATTR InstName R2 SYMATTR Value 1 SYMBOL Misc\\EuropeanResistor 32 208 R0 SYMATTR InstName R3 SYMATTR Value 110 SYMBOL Misc\\EuropeanResistor 32 320 R0 SYMATTR InstName R4 SYMATTR Value 110 SYMBOL Misc\\EuropeanResistor -16 -16 R0 SYMATTR InstName R5 SYMATTR Value 2k7 SYMBOL Misc\\EuropeanResistor -224 0 R0 WINDOW 0 30 47 Left 0 SYMATTR InstName R6 SYMATTR Value 270k SYMBOL Misc\\EuropeanResistor -224 192 R0 SYMATTR InstName R7 SYMATTR Value 470k SYMBOL Misc\\EuropeanResistor -224 416 R0 SYMATTR InstName R8 SYMATTR Value 68 SYMBOL Misc\\EuropeanResistor -64 -16 R90 WINDOW 0 5 56 VBottom 0 WINDOW 3 27 56 VTop 0 SYMATTR InstName R9 SYMATTR Value 15K SYMBOL Misc\\EuropeanResistor 432 272 R90 WINDOW 0 5 56 VBottom 0 WINDOW 3 27 56 VTop 0 SYMATTR InstName R11 SYMATTR Value 1k5 SYMBOL Misc\\EuropeanPolcap -304 16 R0 WINDOW 0 -44 18 Left 0 WINDOW 3 -46 44 Left 0 SYMATTR InstName C1 SYMATTR Value 10µ SYMBOL Misc\\EuropeanPolcap 528 304 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C2 SYMATTR Value 640 SYMBOL Misc\\EuropeanPolcap -176 384 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C3 SYMATTR Value 330 SYMBOL Misc\\EuropeanCap 80 160 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C4 SYMATTR Value 4.7n SYMBOL Misc\\EuropeanResistor 608 496 R0 WINDOW 0 38 50 Left 0 WINDOW 3 47 76 Left 0 SYMATTR InstName R12 SYMATTR Value 8 SYMBOL Misc\\EuropeanResistor 288 496 R0 SYMATTR InstName R10 SYMATTR Value 330 SYMBOL Misc\\battery 704 176 R0 WINDOW 123 0 0 Left 0 WINDOW 39 -24 140 Left 0 WINDOW 0 11 4 Left 0 WINDOW 3 15 95 Left 0 SYMATTR SpiceLine Rser=.1 SYMATTR InstName V1 SYMATTR Value 12V SYMBOL Misc\\signal -288 368 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 WINDOW 3 -154 111 Left 0 SYMATTR InstName V2 SYMATTR Value SINE(0 200mv 1K) SYMBOL Misc\\EuropeanPolcap -272 144 R270 WINDOW 0 32 32 VTop 0 WINDOW 3 0 32 VBottom 0 SYMATTR InstName C5 SYMATTR Value 2µ5 TEXT -56 656 Left 0 !;op TEXT -64 696 Left 0 !.tran 0 20m 0