Version 4
SHEET 1 1804 1012
WIRE 240 0 128 0
WIRE 512 0 240 0
WIRE 592 0 512 0
WIRE 704 0 672 0
WIRE 128 16 128 0
WIRE 240 16 240 0
WIRE 512 32 512 0
WIRE 240 112 240 96
WIRE 400 144 384 144
WIRE 512 144 512 112
WIRE 512 144 480 144
WIRE 560 144 512 144
WIRE 640 144 624 144
WIRE -208 160 -304 160
WIRE -112 160 -208 160
WIRE -16 160 -112 160
WIRE 48 160 -16 160
WIRE 128 160 128 96
WIRE 128 160 112 160
WIRE 176 160 128 160
WIRE -208 192 -208 160
WIRE 512 192 512 144
WIRE -304 208 -304 160
WIRE -112 208 -112 160
WIRE -16 240 -16 224
WIRE 240 240 240 208
WIRE 240 240 -16 240
WIRE 288 240 240 240
WIRE 384 240 384 144
WIRE 384 240 352 240
WIRE 448 240 384 240
WIRE 128 272 128 160
WIRE 240 272 240 240
WIRE 1376 288 1152 288
WIRE -304 320 -304 288
WIRE -208 320 -208 272
WIRE -208 320 -304 320
WIRE -112 320 -112 272
WIRE -112 320 -208 320
WIRE -16 320 -16 304
WIRE -16 320 -112 320
WIRE 512 320 512 288
WIRE 672 320 512 320
WIRE 880 320 752 320
WIRE 928 320 880 320
WIRE 1152 320 1152 288
WIRE -112 336 -112 320
WIRE 1376 336 1376 288
WIRE 512 352 512 320
WIRE 128 368 128 352
WIRE 240 368 240 352
WIRE 240 368 128 368
WIRE 240 384 240 368
WIRE 1152 432 1152 400
WIRE -80 464 -144 464
WIRE 256 464 -80 464
WIRE 512 464 512 432
WIRE 768 464 656 464
WIRE 784 464 768 464
WIRE 864 464 848 464
WIRE 976 464 864 464
WIRE 1264 464 1232 464
WIRE 1376 464 1376 416
WIRE 1376 464 1344 464
WIRE 1456 464 1376 464
WIRE 1568 464 1520 464
WIRE 1600 464 1568 464
WIRE 256 480 256 464
WIRE 768 512 768 464
WIRE 864 512 864 464
WIRE 1376 512 1376 464
WIRE -80 560 -80 464
WIRE 656 560 656 544
WIRE 720 560 656 560
WIRE 928 560 928 320
WIRE 976 560 976 544
WIRE 976 560 928 560
WIRE 1104 560 1056 560
WIRE 1136 560 1104 560
WIRE 1232 560 1232 464
WIRE 1232 560 1200 560
WIRE 1312 560 1232 560
WIRE 1600 560 1600 464
WIRE 128 576 112 576
WIRE 256 576 256 560
WIRE 256 576 208 576
WIRE 320 576 256 576
WIRE 448 576 384 576
WIRE 576 576 448 576
WIRE 656 576 656 560
WIRE 976 576 976 560
WIRE 1056 576 1056 560
WIRE 256 608 256 576
WIRE 768 608 768 576
WIRE 784 608 768 608
WIRE 864 608 864 576
WIRE 864 608 848 608
WIRE 1232 608 1232 560
WIRE -400 624 -432 624
WIRE -368 624 -400 624
WIRE -208 624 -288 624
WIRE -128 624 -208 624
WIRE 1376 624 1376 608
WIRE -432 640 -432 624
WIRE -16 656 -80 656
WIRE 16 656 -16 656
WIRE 112 656 112 576
WIRE 112 656 80 656
WIRE 192 656 112 656
WIRE 768 656 768 608
WIRE 976 656 768 656
WIRE 656 672 656 656
WIRE 864 672 864 608
WIRE 864 672 656 672
WIRE -80 688 -80 656
WIRE 576 720 576 656
WIRE 720 720 720 560
WIRE 1056 720 1056 656
WIRE 1232 720 1232 688
WIRE 1376 720 1376 704
WIRE 1600 720 1600 640
WIRE -432 752 -432 720
WIRE -80 800 -80 768
WIRE 256 800 256 784
FLAG 240 384 0
FLAG -112 336 0
FLAG 1056 720 0
FLAG 576 720 0
FLAG 1376 720 0
FLAG 1152 432 0
FLAG 704 0 0
FLAG 1600 720 0
FLAG 1104 560 zf1
FLAG 720 720 0
FLAG 256 800 0
FLAG -80 800 0
FLAG -224 464 0
FLAG -432 752 0
FLAG -208 624 ant
FLAG -16 656 buf
FLAG -400 624 src
FLAG 448 576 amp
FLAG 880 320 vfo
FLAG 1568 464 zf2
FLAG 1232 720 0
FLAG 512 464 0
FLAG 640 144 0
SYMBOL npn 176 112 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL Misc\\EuropeanResistor 224 256 R0
SYMATTR InstName R2
SYMATTR Value 3.3k
SYMBOL Misc\\EuropeanResistor 112 0 R0
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL Misc\\EuropeanResistor 112 256 R0
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL cap 48 176 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 220p
SYMBOL cap -32 240 R0
SYMATTR InstName C3
SYMATTR Value 220p
SYMBOL cap -32 160 R0
SYMATTR InstName C4
SYMATTR Value 220p
SYMBOL ind2 -224 176 R0
SYMATTR InstName L1
SYMATTR Value 10µ
SYMATTR Type ind
SYMBOL cap -128 208 R0
SYMATTR InstName C5
SYMATTR Value 27.7p
SYMBOL Misc\\EuropeanResistor -320 192 R0
SYMATTR InstName R6
SYMATTR Value 300k
SYMBOL Misc\\EuropeanResistor 224 0 R0
SYMATTR InstName R1
SYMATTR Value 470
SYMBOL npn 448 192 R0
SYMATTR InstName Q2
SYMATTR Value BC547C
SYMBOL Misc\\EuropeanResistor 496 160 M270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R8
SYMATTR Value 82k
SYMBOL cap 288 256 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C6
SYMATTR Value 1n
SYMBOL ind2 672 560 M0
WINDOW 0 -28 38 Left 2
WINDOW 3 -44 79 Left 2
SYMATTR InstName L2
SYMATTR Value 20µ
SYMBOL ind2 672 448 M0
WINDOW 0 37 28 Left 2
WINDOW 3 34 60 Left 2
SYMATTR InstName L3
SYMATTR Value 20µ
SYMBOL ind2 560 560 R0
WINDOW 0 -31 56 Left 2
WINDOW 3 -33 89 Left 2
SYMATTR InstName L4
SYMATTR Value 80µ
SYMBOL ind2 960 560 R0
WINDOW 0 114 44 Left 2
WINDOW 3 -41 66 Left 2
SYMATTR InstName L5
SYMATTR Value 20µ
SYMBOL ind2 960 448 R0
SYMATTR InstName L6
SYMATTR Value 20µ
SYMBOL ind2 1072 560 M0
WINDOW 0 109 38 Left 2
WINDOW 3 -45 78 Left 2
SYMATTR InstName L7
SYMATTR Value 80µ
SYMBOL schottky 848 512 R0
WINDOW 3 -38 5 Left 2
WINDOW 0 -37 30 Left 2
SYMATTR Value BAT43
SYMATTR InstName D1
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 848 592 R90
WINDOW 0 -7 31 VBottom 2
WINDOW 3 31 30 VTop 2
SYMATTR InstName D2
SYMATTR Value BAT43
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 784 576 R180
WINDOW 0 24 64 Left 2
WINDOW 3 22 91 Left 2
SYMATTR InstName D3
SYMATTR Value BAT43
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL schottky 784 480 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 89 49 VBottom 2
SYMATTR InstName D4
SYMATTR Value BAT43
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 1136 576 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C7
SYMATTR Value 100n
SYMBOL npn 1312 512 R0
SYMATTR InstName Q4
SYMATTR Value BC547C
SYMBOL Misc\\EuropeanResistor 1360 320 R0
SYMATTR InstName R12
SYMATTR Value 270
SYMBOL Misc\\EuropeanResistor 1248 480 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R13
SYMATTR Value 1.5k
SYMBOL Misc\\EuropeanResistor 1360 608 R0
SYMATTR InstName R14
SYMATTR Value 18
SYMBOL cap 1456 480 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C9
SYMATTR Value 100n
SYMBOL Misc\\battery 1152 304 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value 9V
SYMBOL Misc\\battery 576 0 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V4
SYMATTR Value 6v
SYMBOL Misc\\EuropeanResistor 1584 544 R0
SYMATTR InstName R17
SYMATTR Value 120
SYMBOL npn 192 608 R0
SYMATTR InstName Q3
SYMATTR Value BC547C
SYMBOL Misc\\EuropeanResistor 240 464 R0
SYMATTR InstName R18
SYMATTR Value 220
SYMBOL Misc\\EuropeanResistor 112 592 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R19
SYMATTR Value 100k
SYMBOL cap 320 592 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C11
SYMATTR Value 10n
SYMBOL njf -128 560 R0
WINDOW 0 56 44 Left 2
WINDOW 3 56 14 Left 2
SYMATTR InstName J2
SYMATTR Value BF245C
SYMBOL cap 16 672 R270
WINDOW 0 -59 29 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C12
SYMATTR Value 10n
SYMBOL Misc\\battery -128 464 R90
WINDOW 0 -54 8 VTop 2
WINDOW 3 57 20 VBottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V7
SYMATTR Value 6V
SYMBOL voltage -432 624 M0
WINDOW 123 43 64 Left 2
WINDOW 39 24 124 Left 2
WINDOW 0 61 31 Left 2
WINDOW 3 -148 98 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V8
SYMATTR Value SINE(0 100m 3700k)
SYMBOL Misc\\EuropeanResistor 240 688 R0
SYMATTR InstName R20
SYMATTR Value 33
SYMBOL Misc\\EuropeanResistor -384 640 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R22
SYMATTR Value 1k
SYMBOL ind -64 672 M0
SYMATTR InstName L8
SYMATTR Value 33µ
SYMBOL ind2 496 336 R0
WINDOW 0 -40 40 Left 2
WINDOW 3 -60 80 Left 2
SYMATTR InstName L9
SYMATTR Value 33µ
SYMATTR Type ind
SYMBOL Misc\\EuropeanResistor 496 16 R0
SYMATTR InstName R7
SYMATTR Value 100
SYMBOL Misc\\EuropeanResistor 656 336 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R9
SYMATTR Value 47
SYMBOL Misc\\EuropeanResistor 1216 592 R0
SYMATTR InstName R5
SYMATTR Value 560
SYMBOL cap 624 128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 100n
TEXT -416 48 Left 2 !.tran 0 1.1m 100u 1n
TEXT -416 88 Left 2 !;ac oct 4000 100k 10000k
TEXT 520 688 Left 2 !K1 L2 L3 L4 0.97
TEXT 928 680 Left 2 !K2 L5 L6 L7 0.97
TEXT -232 648 Left 2 ;0dB
TEXT -48 680 Left 2 ;-1dB