Capacitor voltages

[bobodamunkey]

Ok, so i am a newb and i have been seeing all these great projects that i would like to try like the Cacophonater http://aronnelson.com/gallery/album16/cacophlayout3
and the WSG http://www.musicfromouterspace.com/analogsynth/YOUR_FIRST_SYNTH/YOUR_FIRST_SYNTH.html

These sites give you a part list but they don't tell you what voltage the caps need to be. Can someone clue me in on this please? I know it makes a difference and it's buggin' the hell out of me.

Thanks all

[6079smith]

Have a read of this.
Voltage rating for capacitors only indicate their tolerance, not how they perform. It just means that a capacitor should be chosen with a voltage tolerance above the power supply you are using. In real life (by that I mean DIY electronics) electrolytic capacitors are the only ones you'll have to watch out for, as they can be rated as low as ten volts (or lower). Not good if you're using a +/- 15 volt power supply. Generally, ceramic and mylar have a higher voltage rating, but in terms of DIY, it's something you'll probably never have to worry about. If anyone else wants to chime in, please feel free. Hope this helps some way...

[bobodamunkey]

Thanks a million! I understand now. I had another poster tell me a good rule of thumb is to take the voltage of the power supply you are using and multilpy by 2 then get the next value up. I will try this. Thank you again.

[State Machine]

[bobodamunkey]

Thanks for everyones help. You have all been very nice and very helpful.

Thank you

[State Machine]

[jksuperstar]

You might also want to check out this link:
http://electro-music.com/forum/topic-7474.html

Use the links at the bottom.

It describes why certain caps are used in certain situations.

[State Machine]

[bobodamunkey]

Thanks JK. That link dosent work anymore but i got the new one http://waltjung.org/PDFs/Picking_Capacitors_1.pdf and i will be doing some reading.

Thanks again