555 for MAF

Igor Dorrestijn Dorrestijn at corps.nl
Wed Feb 20 07:26:50 GMT 2002


----- Original Message -----
From: "Bruce" <nacelp at bright.net>
To: <gmecm at diy-efi.org>; <diy_efi at diy-efi.org>
Sent: zondag 16 februari 1997 16:05
Subject: 555 for MAF


Try this:
5k6 for Ra
2k7 plus a 25k potentiometer for Rb
1uF for C

That should get you 23.6 to 130.9Hz

Good luck,
Igor


> The only program I have for finding values for generating a given freq
with
> a 555 always tries changing 2 values when I try to go for two different
> freq.
>
> I would like to generate a 30-130Hz output from a single 555, and single
> pot.  If it goes off scale in either direction some, no big deal.
>
> Any help appreciated.
> Bruce
>    Applied power to the ecm bench and no smoke exscaped (at least so far)
> <g>
>
>
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