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Cream of the Crop 1
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1992-10-11
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552b
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28 lines
Electronic crossover
.ac DEC 30 20 20k
*Lowpass section: (output on node 4)
vin 1 0 ac 1
*simulate an op-amp for fast converge:
e1 4 0 2 3 5000
*Change rdamp1 to change damping
rdamp1 3 0 4.65k
r1 2 3 4 2.8k
*Change r2 & r3 to change frequency (r2 = r3)
*F(-3dB) = 1/(2pi*r*c)
r2 1 5 10k
r3 5 2 10k
c1 2 0 .1uf
c2 5 4 .1uf
*Highpass section: (output on node 9)
e2 9 0 7 8 5000
rdamp2 8 0 4.65k
r4 8 9 2.8k
r5 6 9 10k
r6 7 0 10k
c3 1 6 .1uf
c4 6 7 .1uf
.end