Version 4 SHEET 1 2532 980 WIRE 256 -736 -64 -736 WIRE 448 -736 256 -736 WIRE 896 -736 448 -736 WIRE 1104 -736 896 -736 WIRE 1280 -736 1104 -736 WIRE 1472 -736 1280 -736 WIRE 2096 -736 1472 -736 WIRE 2528 -736 2096 -736 WIRE 1472 -688 1472 -736 WIRE 896 -656 896 -736 WIRE 1104 -656 1104 -736 WIRE 256 -576 256 -736 WIRE 1472 -576 1472 -624 WIRE 1280 -544 1280 -736 WIRE 1472 -464 1472 -512 WIRE 1280 -336 1280 -480 WIRE 1376 -336 1280 -336 WIRE 1472 -336 1472 -400 WIRE 1472 -336 1376 -336 WIRE 1280 -320 1280 -336 WIRE 2096 -304 2096 -736 WIRE 1104 -256 1104 -576 WIRE 1232 -256 1104 -256 WIRE 1872 -256 1328 -256 WIRE 2032 -256 1872 -256 WIRE 1376 -160 1376 -336 WIRE 1376 -160 1280 -160 WIRE 1280 -144 1280 -160 WIRE 896 -80 896 -576 WIRE 1232 -80 896 -80 WIRE 1664 -80 1328 -80 WIRE 448 -48 448 -736 WIRE 256 0 256 -496 WIRE 384 0 256 0 WIRE -64 64 -64 -736 WIRE 896 64 896 -80 WIRE 1104 64 1104 -256 WIRE 672 128 560 128 WIRE 800 128 736 128 WIRE 848 128 800 128 WIRE 1344 128 1152 128 WIRE 1728 128 1344 128 WIRE 1936 128 1728 128 WIRE 2096 128 2096 -208 WIRE 2096 128 2016 128 WIRE 560 160 560 128 WIRE 1344 160 1344 128 WIRE 1728 160 1728 128 WIRE 800 176 800 128 WIRE 896 208 896 160 WIRE 1008 208 896 208 WIRE 1104 208 1104 160 WIRE 1104 208 1008 208 WIRE 256 288 256 0 WIRE 256 288 128 288 WIRE 448 288 448 48 WIRE 448 288 368 288 WIRE 560 288 560 240 WIRE 560 288 448 288 WIRE 800 288 800 256 WIRE 800 288 560 288 WIRE 1344 288 1344 240 WIRE 1344 288 800 288 WIRE 1728 288 1728 224 WIRE 1728 288 1344 288 WIRE 2528 288 1728 288 WIRE 1472 368 1472 -336 WIRE 1872 368 1872 -256 WIRE 256 416 256 288 WIRE 448 416 448 288 WIRE 1664 416 1664 -80 WIRE 1808 416 1664 416 WIRE 128 432 128 288 WIRE 368 432 368 288 WIRE 1008 480 1008 208 WIRE 2096 480 2096 128 WIRE 1280 528 1072 528 WIRE 1472 528 1472 448 WIRE 1472 528 1280 528 WIRE 2032 528 1472 528 WIRE 1472 592 1472 528 WIRE 1872 608 1872 464 WIRE 1872 608 1760 608 WIRE 1664 640 1664 416 WIRE 1872 640 1872 608 WIRE 1280 672 1280 528 WIRE 1760 688 1760 608 WIRE 1760 688 1728 688 WIRE 1808 688 1760 688 WIRE 1472 720 1472 656 WIRE 1008 736 1008 576 WIRE 2096 736 2096 576 WIRE 1664 784 1664 736 WIRE 1872 784 1872 736 WIRE -64 944 -64 144 WIRE 128 944 128 496 WIRE 128 944 -64 944 WIRE 256 944 256 496 WIRE 256 944 128 944 WIRE 368 944 368 496 WIRE 368 944 256 944 WIRE 448 944 448 496 WIRE 448 944 368 944 WIRE 1008 944 1008 816 WIRE 1008 944 448 944 WIRE 1280 944 1280 736 WIRE 1280 944 1008 944 WIRE 1472 944 1472 784 WIRE 1472 944 1280 944 WIRE 1664 944 1664 864 WIRE 1664 944 1472 944 WIRE 1872 944 1872 864 WIRE 1872 944 1664 944 WIRE 2096 944 2096 816 WIRE 2096 944 1872 944 WIRE 2528 944 2096 944 WIRE -64 960 -64 944 FLAG -64 960 0 SYMBOL voltage -64 48 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL njf 848 64 R0 SYMATTR InstName J1 SYMATTR Value 2N3819 SYMBOL njf 1152 64 M0 SYMATTR InstName J2 SYMATTR Value 2N3819 SYMBOL npn 1072 480 M0 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL res 992 720 R0 SYMATTR InstName R1 SYMATTR Value 69.8 SYMBOL npn 1808 640 R0 SYMATTR InstName Q2 SYMATTR Value 2N3904 SYMBOL res 1856 768 R0 SYMATTR InstName R_trim_offs SYMATTR Value 180 SYMBOL res 880 -672 R0 SYMATTR InstName R3 SYMATTR Value 130 SYMBOL res 1088 -672 R0 SYMATTR InstName R4 SYMATTR Value 130 SYMBOL npn 1728 640 M0 SYMATTR InstName Q5 SYMATTR Value 2N3904 SYMBOL res 1648 768 R0 SYMATTR InstName R5 SYMATTR Value 180 SYMBOL pnp 1328 -320 R90 SYMATTR InstName Q3 SYMATTR Value BC557C SYMBOL pnp 1328 -144 R90 SYMATTR InstName Q4 SYMATTR Value BC557C SYMBOL npn 2032 -304 R0 SYMATTR InstName Q6 SYMATTR Value 2N3904 SYMBOL res 1360 256 R180 WINDOW 0 36 76 Left 2 WINDOW 3 36 40 Left 2 SYMATTR InstName R7 SYMATTR Value 120 SYMBOL res 2032 112 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R8 SYMATTR Value 1k07 SYMBOL voltage 560 144 R0 WINDOW 123 24 124 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value2 AC 1. SYMATTR InstName V5 SYMATTR Value SINE(0 10m 5e6) SYMBOL cap 1712 160 R0 SYMATTR InstName C_comp SYMATTR Value 69p SYMBOL diode 1456 592 R0 SYMATTR InstName D1 SYMATTR Value 1N4148 SYMBOL diode 1456 720 R0 SYMATTR InstName D2 SYMATTR Value 1N4148 SYMBOL res 1456 352 R0 SYMATTR InstName R9 SYMATTR Value 1k SYMBOL diode 1456 -464 R0 SYMATTR InstName D3 SYMATTR Value 1N4148 SYMBOL diode 1456 -576 R0 SYMATTR InstName D4 SYMATTR Value 1N4148 SYMBOL diode 1456 -688 R0 SYMATTR InstName D5 SYMATTR Value 1N4148 SYMBOL cap 1264 -544 R0 SYMATTR InstName C2 SYMATTR Value 1µ SYMBOL cap 1264 672 R0 SYMATTR InstName C3 SYMATTR Value 1µ SYMBOL npn 1808 368 R0 SYMATTR InstName Q7 SYMATTR Value 2N3904 SYMBOL npn 2032 480 R0 SYMATTR InstName Q8 SYMATTR Value 2N3904 SYMBOL res 2080 720 R0 SYMATTR InstName R6 SYMATTR Value 33 SYMBOL res 240 -592 R0 SYMATTR InstName R10 SYMATTR Value 1k6 SYMBOL res 240 400 R0 SYMATTR InstName R11 SYMATTR Value 2k43 SYMBOL npn 384 -48 R0 SYMATTR InstName Q9 SYMATTR Value 2N3904 SYMBOL res 432 400 R0 SYMATTR InstName R12 SYMATTR Value 1k SYMBOL cap 112 432 R0 SYMATTR InstName C4 SYMATTR Value 1µ SYMBOL cap 352 432 R0 SYMATTR InstName C5 SYMATTR Value 10µ SYMBOL cap 736 112 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C6 SYMATTR Value 100n SYMBOL res 784 160 R0 SYMATTR InstName R13 SYMATTR Value 100k TEXT -248 856 Left 2 !.tran 0 5µ 0 TEXT -248 896 Left 2 !;ac dec 1k 1 1e8