lower frequencies on 555 based synth...

[jamiewoody]

i have been breadboarding like crazy and making a lot of discoveries.

if i am making a simple 555 based synth circuit, how do you make a lower frequency? i tried higher resistors, which i had in stock, a 51k and a 47k...this seemed to make somewhat of a difference, but it also seemed to crash more.

advice?

[noystoise]

use bigger caps like 1uf-10uf. should help.

[Circuitbenders]

Check out the 'Choosing R1, R2 and C1' section on this page:

http://www.kpsec.freeuk.com/555timer.htm

[jamiewoody]

i'll check these things out...thanks!

is there a formula (in layman's terms) for capacitance and frequency?  higher capacitance=lower frequency?

[druzz]

Check out the 'Choosing R1, R2 and C1' section on this page:

http://www.kpsec.freeuk.com/555timer.htm

thanks this is a very nice document to help my 555 projects expanding !!