formant rfm

Martin Czech martin.czech at
Mon Nov 22 09:50:21 CET 1999

:::Hi all,
:::is there anyone who knows, why the input- and output stage of the
:::formant resonant filter module is built up with a LF356 and LF357 ?
:::I tried it, and with the 357 as the summing OP-amp, there is only 
:::HF-Noise. With a 741, it works pretty well.
:::So, why a 357 and not a 741 ????

357 must be an error, it is decompensated, works only for G>5.


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