Version 4 SHEET 1 880 680 WIRE -1280 -528 -1472 -528 WIRE -848 -528 -1280 -528 WIRE -656 -528 -848 -528 WIRE -240 -528 -656 -528 WIRE 0 -528 -240 -528 WIRE 32 -528 0 -528 WIRE 144 -528 112 -528 WIRE 256 -528 144 -528 WIRE 256 -512 256 -528 WIRE -1280 -496 -1280 -528 WIRE -1200 -496 -1280 -496 WIRE -656 -496 -656 -528 WIRE -576 -496 -656 -496 WIRE 0 -496 0 -528 WIRE 144 -496 144 -528 WIRE -1280 -480 -1280 -496 WIRE -656 -480 -656 -496 WIRE -1200 -464 -1200 -496 WIRE -576 -464 -576 -496 WIRE -240 -464 -240 -528 WIRE -1472 -416 -1472 -528 WIRE -848 -416 -848 -528 WIRE 0 -416 0 -432 WIRE 144 -416 144 -432 WIRE 144 -416 0 -416 WIRE 256 -416 256 -432 WIRE 256 -416 144 -416 WIRE 256 -400 256 -416 WIRE -1280 -384 -1280 -400 WIRE -1200 -384 -1200 -400 WIRE -1200 -384 -1280 -384 WIRE -656 -384 -656 -400 WIRE -576 -384 -576 -400 WIRE -576 -384 -656 -384 WIRE -1280 -352 -1280 -384 WIRE -1136 -352 -1280 -352 WIRE -1024 -352 -1072 -352 WIRE -656 -352 -656 -384 WIRE -496 -352 -656 -352 WIRE -384 -352 -432 -352 WIRE -1280 -320 -1280 -352 WIRE -656 -320 -656 -352 WIRE -240 -320 -240 -384 WIRE -144 -320 -240 -320 WIRE -80 -320 -144 -320 WIRE 64 -320 0 -320 WIRE 144 -320 64 -320 WIRE 256 -320 208 -320 WIRE 288 -320 256 -320 WIRE -144 -304 -144 -320 WIRE 64 -304 64 -320 WIRE 288 -304 288 -320 WIRE -1472 -256 -1472 -336 WIRE -1472 -256 -1552 -256 WIRE -1328 -256 -1472 -256 WIRE -848 -256 -848 -336 WIRE -848 -256 -928 -256 WIRE -704 -256 -848 -256 WIRE -144 -224 -144 -240 WIRE 64 -224 64 -240 WIRE -1552 -208 -1552 -256 WIRE -1472 -208 -1472 -256 WIRE -928 -208 -928 -256 WIRE -848 -208 -848 -256 WIRE -240 -176 -240 -320 WIRE -64 -112 -192 -112 WIRE -32 -112 -64 -112 WIRE 64 -112 32 -112 WIRE 192 -112 144 -112 WIRE -1552 -96 -1552 -144 WIRE -1472 -96 -1472 -128 WIRE -928 -96 -928 -144 WIRE -848 -96 -848 -128 WIRE 192 -80 192 -112 WIRE -240 -48 -240 -80 WIRE -1280 0 -1280 -224 WIRE -656 0 -656 -224 WIRE -64 0 -64 -112 WIRE -384 16 -384 -352 WIRE -288 16 -384 16 WIRE 192 32 192 0 WIRE -1792 64 -1824 64 WIRE -1616 64 -1712 64 WIRE -1472 64 -1552 64 WIRE -1328 64 -1472 64 WIRE -1024 64 -1024 -352 WIRE -848 64 -1024 64 WIRE -704 64 -848 64 WIRE -384 64 -384 16 WIRE 560 80 448 80 WIRE -240 96 -240 48 WIRE -128 96 -240 96 WIRE -1280 112 -1280 96 WIRE -1248 112 -1280 112 WIRE -1136 112 -1168 112 WIRE -656 112 -656 96 WIRE -624 112 -656 112 WIRE -512 112 -544 112 WIRE -1472 128 -1472 64 WIRE -848 128 -848 64 WIRE 560 128 560 80 WIRE -1824 144 -1824 64 WIRE -1280 144 -1280 112 WIRE -656 144 -656 112 WIRE -240 144 -240 96 WIRE -128 144 -128 96 WIRE -1136 160 -1136 112 WIRE -512 160 -512 112 WIRE -1824 256 -1824 224 WIRE -1472 256 -1472 208 WIRE -1472 256 -1824 256 WIRE -1280 256 -1280 224 WIRE -1280 256 -1472 256 WIRE -1136 256 -1136 224 WIRE -1136 256 -1280 256 WIRE -848 256 -848 208 WIRE -848 256 -1136 256 WIRE -656 256 -656 224 WIRE -656 256 -848 256 WIRE -512 256 -512 224 WIRE -512 256 -656 256 WIRE -384 256 -384 144 WIRE -384 256 -512 256 WIRE -240 256 -240 224 WIRE -240 256 -384 256 WIRE -128 256 -128 208 WIRE -128 256 -240 256 WIRE -64 256 -64 80 WIRE -64 256 -128 256 WIRE 560 256 560 208 WIRE 560 256 -64 256 WIRE -1824 272 -1824 256 WIRE -1376 288 -1376 -128 WIRE -752 288 -752 -112 WIRE -752 288 -1376 288 WIRE 448 288 448 80 WIRE 448 288 -752 288 FLAG -1472 -96 0 FLAG -1552 -96 0 FLAG -1824 272 0 FLAG 256 -400 0 FLAG -848 -96 0 FLAG -928 -96 0 FLAG -144 -224 0 FLAG 192 32 0 FLAG 64 -224 0 FLAG 256 -320 nf FLAG 288 -224 0 SYMBOL njf -1328 -320 R0 SYMATTR InstName J1 SYMATTR Value 2N3819 SYMBOL njf -1328 0 R0 WINDOW 3 54 10 Left 2 SYMATTR Value 2N3819 SYMATTR InstName J2 SYMBOL res -1488 -432 R0 SYMATTR InstName R1 SYMATTR Value 27k SYMATTR SpiceLine "" SYMBOL res -1488 -224 R0 SYMATTR InstName R2 SYMATTR Value 9k SYMATTR SpiceLine "" SYMBOL res -1296 128 R0 SYMATTR InstName R3 SYMATTR Value 680 SYMATTR SpiceLine "" SYMBOL res -1488 112 R0 SYMATTR InstName R4 SYMATTR Value 3k SYMATTR SpiceLine "" SYMBOL cap -1536 -208 M0 SYMATTR InstName C1 SYMATTR Value 100n SYMBOL cap -1072 -368 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C2 SYMATTR Value 1n SYMATTR SpiceLine "" SYMBOL voltage -1824 128 R0 WINDOW 3 36 90 Left 2 WINDOW 123 40 57 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value SINE(0 30u 455k) SYMATTR Value2 AC 2 SYMATTR SpiceLine "" SYMATTR InstName V1 SYMBOL voltage 256 -528 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value2 "" SYMATTR SpiceLine "" SYMATTR InstName V2 SYMATTR Value 5 SYMBOL res -1696 48 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName Ri SYMATTR Value 1.5k SYMATTR SpiceLine "" SYMBOL ind -1264 -496 M0 SYMATTR InstName L1 SYMATTR Value 605µ SYMATTR SpiceLine Rpar=56k SYMBOL cap -1216 -464 R0 SYMATTR InstName C3 SYMATTR Value 200p SYMATTR SpiceLine "" SYMBOL njf -704 -320 R0 SYMATTR InstName J3 SYMATTR Value 2N3819 SYMBOL njf -704 0 R0 WINDOW 3 56 6 Left 2 SYMATTR Value 2N3819 SYMATTR InstName J4 SYMBOL res -864 -432 R0 SYMATTR InstName R5 SYMATTR Value 27k SYMATTR SpiceLine "" SYMBOL res -864 -224 R0 SYMATTR InstName R8 SYMATTR Value 9k SYMATTR SpiceLine "" SYMBOL res -672 128 R0 SYMATTR InstName R9 SYMATTR Value 680 SYMATTR SpiceLine "" SYMBOL res -864 112 R0 SYMATTR InstName R10 SYMATTR Value 470k SYMATTR SpiceLine "" SYMBOL cap -912 -208 M0 SYMATTR InstName C4 SYMATTR Value 100n SYMBOL cap -432 -368 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C5 SYMATTR Value 1n SYMATTR SpiceLine "" SYMBOL res -400 48 R0 SYMATTR InstName R11 SYMATTR Value 470k SYMATTR SpiceLine "" SYMBOL ind -640 -496 M0 SYMATTR InstName L2 SYMATTR Value 610µ SYMATTR SpiceLine Rpar=56k SYMBOL cap -592 -464 R0 SYMATTR InstName C6 SYMATTR Value 200p SYMATTR SpiceLine "" SYMBOL cap -1552 48 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C7 SYMATTR Value 220n SYMATTR SpiceLine "" SYMBOL cap -16 -496 R0 SYMATTR InstName C8 SYMATTR Value 220n SYMBOL cap 128 -496 R0 SYMATTR InstName C9 SYMATTR Value 220n SYMBOL ind 16 -512 R270 WINDOW 0 32 56 VTop 2 WINDOW 3 5 56 VBottom 2 SYMATTR InstName L3 SYMATTR Value 1m SYMBOL cap -1152 160 R0 SYMATTR InstName C10 SYMATTR Value 100n SYMBOL voltage 560 112 R0 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR Value2 "" SYMATTR SpiceLine "" SYMATTR InstName V3 SYMATTR Value {AGC} SYMBOL res -1152 96 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R6 SYMATTR Value 18 SYMATTR SpiceLine "" SYMBOL res -1392 -224 R0 SYMATTR InstName R13 SYMATTR Value 30k SYMBOL res -768 -208 R0 SYMATTR InstName R14 SYMATTR Value 30k SYMBOL cap -528 160 R0 SYMATTR InstName C11 SYMATTR Value 100n SYMBOL res -528 96 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R12 SYMATTR Value 100 SYMATTR SpiceLine "" SYMBOL njf -288 -48 R0 WINDOW 3 56 6 Left 2 SYMATTR Value 2N3819 SYMATTR InstName J5 SYMBOL res -224 128 M0 SYMATTR InstName R15 SYMATTR Value 1.5k SYMATTR SpiceLine "" SYMBOL cap 208 -336 R90 WINDOW 0 0 28 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C12 SYMATTR Value 10µ SYMATTR SpiceLine "" SYMBOL cap -112 144 M0 SYMATTR InstName C13 SYMATTR Value 100µ SYMATTR SpiceLine "" SYMBOL njf -192 -176 M0 WINDOW 3 56 6 Left 2 SYMATTR Value 2N3819 SYMATTR InstName J6 SYMBOL cap 32 -128 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C14 SYMATTR Value 1n SYMATTR SpiceLine "" SYMBOL res -256 -480 R0 SYMATTR InstName R7 SYMATTR Value 1k SYMATTR SpiceLine "" SYMBOL res -80 -16 R0 SYMATTR InstName R16 SYMATTR Value 10k SYMATTR SpiceLine "" SYMBOL voltage 192 -96 R0 WINDOW 0 -85 70 Left 2 WINDOW 3 -99 106 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 0 0 Left 2 SYMATTR InstName BFO SYMATTR Value SINE(0 1 456.5k) SYMATTR Value2 "" SYMATTR SpiceLine "" SYMBOL res 16 -336 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R17 SYMATTR Value 2.2k SYMATTR SpiceLine "" SYMBOL cap -128 -304 M0 SYMATTR InstName C15 SYMATTR Value 10n SYMATTR SpiceLine "" SYMBOL cap 48 -304 R0 SYMATTR InstName C16 SYMATTR Value 10n SYMATTR SpiceLine "" SYMBOL res 272 -320 R0 SYMATTR InstName R18 SYMATTR Value 22k SYMATTR SpiceLine "" SYMBOL res 160 -128 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R19 SYMATTR Value 100 SYMATTR SpiceLine "" TEXT -1848 -456 Left 2 !.tran 0 2m 200u 1n TEXT 440 16 Left 2 !;.step param AGC 0 5 1 TEXT 440 -24 Left 2 !.param AGC=4 TEXT -1848 -408 Left 2 !;ac lin 1k 440k 465k