MM5837?

[jbv]

>
>
> For those of interest there is an 4006 based noise generator in the Formant, so
> just going to Anders Sponton's site you have have that. It's in the second
> book under the name of DNG. In the ETI/Powertran Vocoder (which you also find
> on Anders site) there is another 4006 based PRNG.
>

BTW, the voice/unvoice detector of the Elektor vocoder also
features a 4015 based noise generator (with 31 bits shift
register) driven by a 500 Hz clock.
According to the article, it takes 70 min before the
sequence repeats itself...

jbv