Version 4 SHEET 1 1528 772 WIRE 816 0 528 0 WIRE 816 32 816 0 WIRE 528 96 528 80 WIRE 816 160 816 112 WIRE 528 192 528 176 WIRE 528 192 288 192 WIRE 288 224 288 192 WIRE 528 224 528 192 WIRE 528 320 528 304 WIRE 624 320 528 320 WIRE 144 336 80 336 WIRE 288 336 288 304 WIRE 288 336 224 336 WIRE 528 336 528 320 WIRE 288 384 288 336 WIRE 464 384 288 384 WIRE 288 416 288 384 WIRE 80 448 80 336 WIRE 528 448 528 432 WIRE 288 512 288 496 WIRE 528 544 528 528 WIRE 624 544 528 544 WIRE 80 560 80 528 WIRE 528 576 528 544 WIRE 624 592 624 544 WIRE 528 688 528 656 WIRE 624 688 624 656 WIRE 624 688 528 688 WIRE 528 720 528 688 FLAG 528 720 0 FLAG 288 512 0 FLAG 80 560 0 FLAG 816 160 0 FLAG 624 320 out SYMBOL voltage 816 16 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V1 SYMATTR Value 12 SYMBOL voltage 80 432 R0 WINDOW 3 -14 1 Left 2 WINDOW 123 24 72 Left 2 WINDOW 39 24 44 Left 2 SYMATTR Value SINE(.7 .1 10meg) SYMATTR Value2 AC 1 SYMATTR InstName V2 SYMBOL res 272 400 R0 SYMATTR InstName R7 SYMATTR Value 6k8 SYMBOL npn 464 336 R0 SYMATTR InstName Q2 SYMATTR Value BFR181 SYMBOL res 512 560 R0 SYMATTR InstName R1 SYMATTR Value 82 SYMBOL res 272 208 R0 SYMATTR InstName R2 SYMATTR Value 12k SYMBOL res 512 432 R0 SYMATTR InstName R4 SYMATTR Value 270 SYMBOL res 512 -16 R0 SYMATTR InstName R6 SYMATTR Value 11k SYMBOL res 240 320 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R10 SYMATTR Value 1k SYMBOL ind2 512 80 R0 SYMATTR InstName L1 SYMATTR Value 1.8µ SYMATTR Type ind SYMBOL cap 608 592 R0 SYMATTR InstName C1 SYMATTR Value 22p SYMBOL ind2 512 208 R0 SYMATTR InstName L2 SYMATTR Value 1.8µ SYMATTR Type ind TEXT -32 160 Left 2 !.tran 1u TEXT 320 120 Left 2 !k1 l1 l2 1 TEXT -32 128 Left 2 !;ac oct 5 1 100meg