Version 4
SHEET 1 1404 948
WIRE 208 -208 64 -208
WIRE 464 -208 208 -208
WIRE 208 -176 208 -208
WIRE 64 -144 64 -208
WIRE 208 -64 208 -96
WIRE 272 -64 208 -64
WIRE 384 -64 336 -64
WIRE -64 -16 -96 -16
WIRE 64 -16 64 -64
WIRE 64 -16 0 -16
WIRE 144 -16 64 -16
WIRE 64 16 64 -16
WIRE -688 32 -848 32
WIRE -384 32 -688 32
WIRE -96 32 -96 -16
WIRE -688 64 -688 32
WIRE -848 80 -848 32
WIRE 208 96 208 32
WIRE -176 128 -224 128
WIRE -64 128 -96 128
WIRE 64 128 64 96
WIRE 64 128 0 128
WIRE -688 144 -752 144
WIRE 64 144 64 128
WIRE 144 144 64 144
WIRE -224 160 -224 128
WIRE 464 160 464 -208
WIRE 64 176 64 144
WIRE -1040 192 -1056 192
WIRE -928 192 -960 192
WIRE -848 192 -848 160
WIRE -848 192 -864 192
WIRE -816 192 -848 192
WIRE -688 192 -688 144
WIRE -624 192 -688 192
WIRE -512 192 -560 192
WIRE -1056 208 -1056 192
WIRE 208 208 208 192
WIRE 288 208 208 208
WIRE -384 224 -384 32
WIRE -848 240 -848 192
WIRE -688 240 -752 240
WIRE -592 240 -688 240
WIRE 208 240 208 208
WIRE 288 240 288 208
WIRE -688 272 -688 240
WIRE -592 288 -592 240
WIRE -1056 384 -1056 288
WIRE -848 384 -848 320
WIRE -848 384 -1056 384
WIRE -832 384 -848 384
WIRE -688 384 -688 352
WIRE -688 384 -832 384
WIRE -592 384 -592 352
WIRE -592 384 -688 384
WIRE -512 384 -512 272
WIRE -512 384 -592 384
WIRE -384 384 -384 304
WIRE -384 384 -512 384
WIRE -224 384 -224 240
WIRE 64 384 64 256
WIRE 64 384 -224 384
WIRE 208 384 208 320
WIRE 208 384 64 384
WIRE 288 384 288 304
WIRE 288 384 208 384
WIRE 384 384 384 16
WIRE 384 384 288 384
WIRE 464 384 464 240
WIRE 464 384 384 384
WIRE -832 400 -832 384
FLAG -832 400 0
FLAG 64 384 0
FLAG -96 32 0
SYMBOL voltage -1056 192 R0
WINDOW 123 24 132 Left 0
WINDOW 39 24 160 Left 0
WINDOW 0 40 44 Left 0
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value SINE()
SYMBOL res -864 64 R0
SYMATTR InstName R1
SYMATTR Value 8k
SYMBOL res -864 224 R0
SYMATTR InstName R2
SYMATTR Value 4k
SYMBOL res -704 48 R0
SYMATTR InstName R3
SYMATTR Value 6k
SYMBOL res -704 256 R0
SYMATTR InstName R4
SYMATTR Value 3.3k
SYMBOL res -528 176 R0
SYMATTR InstName R5
SYMATTR Value 4k
SYMBOL res -944 176 R90
WINDOW 0 -17 58 VBottom 0
WINDOW 3 62 21 VTop 0
SYMATTR InstName R6
SYMATTR Value 4k
SYMBOL cap -864 176 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value 1µ
SYMBOL cap -576 352 R180
WINDOW 0 24 64 Left 0
WINDOW 3 24 8 Left 0
SYMATTR InstName C2
SYMATTR Value 10µ
SYMBOL cap -624 208 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C3
SYMATTR Value 1µ
SYMBOL npn -816 144 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL voltage -384 208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 12
SYMBOL voltage -224 144 R0
WINDOW 123 24 132 Left 0
WINDOW 39 24 160 Left 0
SYMATTR Value2 AC 1
SYMATTR InstName V3
SYMATTR Value SINE()
SYMBOL voltage 464 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value 15
SYMBOL npn 144 96 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL npn 144 -64 R0
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL res 192 224 R0
SYMATTR InstName R7
SYMATTR Value 3.3k
SYMBOL res 192 -192 R0
SYMATTR InstName R8
SYMATTR Value 6k
SYMBOL res 48 -160 R0
SYMATTR InstName R9
SYMATTR Value 18k
SYMBOL res 48 0 R0
SYMATTR InstName R10
SYMATTR Value 4k
SYMBOL res 48 160 R0
SYMATTR InstName R11
SYMATTR Value 8k
SYMBOL res 368 -80 R0
SYMATTR InstName R12
SYMATTR Value 4k
SYMBOL res -80 112 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R13
SYMATTR Value 4k
SYMBOL cap 272 240 R0
SYMATTR InstName C4
SYMATTR Value 10µ
SYMBOL cap 336 -80 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C5
SYMATTR Value 1µ
SYMBOL cap 0 112 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C6
SYMATTR Value 1µ
SYMBOL cap 0 -32 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C7
SYMATTR Value 10µ
TEXT -960 -80 Left 0 !.ac oct 1000 10 120e6