Version 4
SHEET 1 1004 680
WIRE 160 -96 -288 -96
WIRE 496 -96 160 -96
WIRE 160 -64 160 -96
WIRE 496 16 496 -96
WIRE 160 64 160 16
WIRE 192 64 160 64
WIRE 304 64 272 64
WIRE 352 64 304 64
WIRE 432 64 352 64
WIRE 352 80 352 64
WIRE -288 112 -288 -96
WIRE 160 160 160 64
WIRE 192 160 160 160
WIRE 304 160 304 64
WIRE 304 160 256 160
WIRE -64 208 -128 208
WIRE 48 208 0 208
WIRE 352 208 352 160
WIRE 352 208 128 208
WIRE 384 208 352 208
WIRE 496 208 496 112
WIRE 496 208 448 208
WIRE 544 208 496 208
WIRE 656 208 608 208
WIRE -128 256 -128 208
WIRE 160 256 160 160
WIRE 272 256 160 256
WIRE 496 256 496 208
WIRE 656 272 656 208
WIRE 160 288 160 256
WIRE 272 288 272 256
WIRE -288 400 -288 192
WIRE -128 400 -128 336
WIRE -128 400 -288 400
WIRE 160 400 160 368
WIRE 160 400 -128 400
WIRE 272 400 272 352
WIRE 272 400 160 400
WIRE 496 400 496 336
WIRE 496 400 272 400
WIRE 656 400 656 352
WIRE 656 400 496 400
WIRE 160 464 160 400
FLAG 160 464 0
FLAG 656 208 Vout
SYMBOL npn 432 16 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL res 480 240 R0
SYMATTR InstName R1
SYMATTR Value 300
SYMBOL res 336 64 R0
SYMATTR InstName R2
SYMATTR Value 270
SYMBOL cap 448 192 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C2
SYMATTR Value 33n
SYMBOL res 288 48 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 180k
SYMBOL res 144 -80 R0
SYMATTR InstName R4
SYMATTR Value 22k
SYMBOL cap 256 144 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C3
SYMATTR Value 2.2n
SYMBOL res 144 272 R0
SYMATTR InstName R5
SYMATTR Value 22k
SYMBOL cap 0 192 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C4
SYMATTR Value 100n
SYMBOL voltage -128 240 R0
WINDOW 123 24 44 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR Value2 AC 1
SYMATTR Value ""
SYMATTR InstName V1
SYMBOL polcap 256 288 R0
SYMATTR InstName C5
SYMATTR Value 3.3µ
SYMBOL res 640 256 R0
SYMATTR InstName RLast
SYMATTR Value 1Meg
SYMBOL voltage -288 96 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 9
SYMBOL polcap 544 224 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C1
SYMATTR Value 2µ
SYMBOL res 144 192 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R6
SYMATTR Value 3.8k
TEXT 544 -48 Left 0 !.ac oct 200 1 100k
TEXT -344 -216 Left 0 !.MEASURE tmp max mag(V(Vout))
TEXT 544 -72 Left 0 ;.step param R list 1k 2k 5k 10k
TEXT -344 -160 Left 0 !.MEASURE BW3dB trig mag(V(Vout))=tmp/sqrt(2) rise=1 targ mag(V(Vout))=tmp/sqrt(2) fall=last\n.MEASURE BW1dB trig mag(V(Vout))=tmp*0.891 rise=1 targ mag(V(Vout))=tmp*0.891 fall=last