how do i run an opamp buffer at a higher voltage?

[ninjadave7]

i have a pedalpower 2 and would like to run my amz opamp buffer at +/- 15V (thanks for the suggestion RG).  is there a way to achieve this only using 1 output on the pp2, and what would i need to change on the design of the buffer?

[John Lyons]

As long as the caps are rated for the voltage you are using you can bump it up to 15v or more.
No changes needed. I'm not familiar with the power supply you are using but unless it has 15v out you'll need to either
buy a higher voltage supply or make a "charge pump" which will convert 9v to 18v or whatever you built it to do.
There are diagrams for this at GEOFEX and AMZ.

john

[solderman]

i have a pedalpower 2 and would like to run my amz opamp buffer at +/- 15V (thanks for the suggestion RG).  is there a way to achieve this only using 1 output on the pp2, and what would i need to change on the design of the buffer?

Don't know what make and model, submodel of Opamp you are using (TL082=18V, MC4558AC=22V MC4558C=18V) but check the spec at http://www.datasheetcatalog.com/ and like John says keep the caps over the voltage you are using + ~25% safety margin. if you are using 18V say 25V caps. 

[petemoore]

  Don't exceed any of the voltage rating of any components the power is applied to.
  For <30vdc, that usually just means capacitors, electrolytic.
  Data sheets will tell you what a transistor/opamp will stand.