Bypass caps (was:Re: [sdiy] Silly question about dual vs. quad op amps

[Grant Richter]

>
>
> I can see James posted already - For a quad, Do You use 2 caps between
> GND and both supplies? How those are sized?

0.1 uF ceramic

>
> The others. Your using bypass scheme for OPAMPs - How do you do it? Or
> let's say for analog power?
>

Use two 10 uF electrolytics where the power comes in. Put two 0.1 uF  
ceramics across them.
Aprox. same performance as tantalum without reliability problems.