Version 4 SHEET 1 1112 840 WIRE -32 -128 -304 -128 WIRE 128 -128 -32 -128 WIRE 304 -128 128 -128 WIRE 464 -128 304 -128 WIRE -304 -96 -304 -128 WIRE 128 -96 128 -128 WIRE 304 -32 304 -128 WIRE 128 16 128 -16 WIRE 240 16 128 16 WIRE -304 32 -304 -16 WIRE 464 48 464 -128 WIRE 128 96 128 16 WIRE 176 96 128 96 WIRE 304 96 304 64 WIRE 304 96 240 96 WIRE 400 96 304 96 WIRE -32 112 -32 -128 WIRE 304 112 304 96 WIRE 464 192 464 144 WIRE 464 192 224 192 WIRE 512 192 464 192 WIRE 608 192 608 128 WIRE 608 192 576 192 WIRE 304 208 304 176 WIRE 464 256 464 192 WIRE 608 256 608 192 WIRE 128 304 128 96 WIRE 304 304 304 272 WIRE 400 304 304 304 WIRE 224 320 224 192 WIRE -304 352 -304 320 WIRE -192 352 -304 352 WIRE -32 352 -32 192 WIRE -32 352 -128 352 WIRE 64 352 -32 352 WIRE 304 352 304 304 WIRE -304 400 -304 352 WIRE -32 416 -32 352 WIRE 128 432 128 400 WIRE 224 432 224 400 WIRE 224 432 128 432 WIRE 128 448 128 432 WIRE -304 560 -304 480 WIRE -32 560 -32 496 WIRE -32 560 -304 560 WIRE 128 560 128 528 WIRE 128 560 -32 560 WIRE 304 560 304 432 WIRE 304 560 128 560 WIRE 464 560 464 352 WIRE 464 560 304 560 WIRE 608 560 608 336 WIRE 608 560 464 560 WIRE 128 592 128 560 FLAG -304 32 0 FLAG 128 592 0 FLAG -304 320 input IOPIN -304 320 Out FLAG 608 128 output IOPIN 608 128 Out SYMBOL npn 64 304 R0 WINDOW 0 70 -60 Left 0 WINDOW 3 69 -34 Left 0 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL npn 400 48 R0 WINDOW 0 107 -20 Left 0 WINDOW 3 108 8 Left 0 SYMATTR InstName Q2 SYMATTR Value 2N4401 SYMBOL pnp 400 352 M180 WINDOW 3 99 -12 Left 0 SYMATTR Value 2N4403 SYMATTR InstName Q3 SYMBOL diode 288 208 R0 WINDOW 0 -40 33 Left 0 WINDOW 3 41 33 Left 0 SYMATTR InstName D1 SYMATTR Value 1N4148 SYMBOL diode 288 112 R0 WINDOW 0 -39 38 Left 0 WINDOW 3 38 39 Left 0 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL res 112 -112 R0 SYMATTR InstName R3 SYMATTR Value 10K SYMBOL polcap -128 336 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C1 SYMATTR Value 1µF SYMBOL voltage -304 -112 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 9V SYMBOL voltage -304 384 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value SINE(0 200mV 1000) SYMBOL res 592 240 R0 SYMATTR InstName RL SYMATTR Value 8 SYMBOL polcap 512 176 M90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C2 SYMATTR Value 1000µF SYMBOL res 112 432 R0 SYMATTR InstName R2 SYMATTR Value 120 SYMBOL res 208 304 R0 SYMATTR InstName R6 SYMATTR Value 220 SYMBOL res 288 336 R0 SYMATTR InstName R4 SYMATTR Value 220 SYMBOL pnp 240 64 M180 SYMATTR InstName Q4 SYMATTR Value 2N3906 SYMBOL cap 240 80 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C3 SYMATTR Value 47pF SYMBOL res -48 96 R0 SYMATTR InstName R1 SYMATTR Value 33K SYMBOL res -48 400 R0 SYMATTR InstName R5 SYMATTR Value 12K TEXT -448 80 Left 0 !.tran 0 0.154 0.15 startup uic TEXT -448 144 Left 0 !.meas pin rms V(input)*I(R6)\n.meas pout rms V(output)*I(RL)\n.meas gain param pout/pin TEXT -448 112 Left 0 !.four 1000 20 V(output)