Power supply bypass cap values.

[2wo]

I have lost track of what caps these are. If they are the power supply filter caps. the only reason to go larger would be to reduced residual 120Hz hum. If not 200uf is probably fine, 250 if you are not sure.

It is probably time to download PSUII, and play with it...John   

[adamct]

Thanks for the recommendation. I just read a couple of threads on diyaudio about PSU Designer II, and it is fairly obvious I would be in way over my head. Even if I figured out how to work it (highly doubtful), I wouldn't be able to interpret the results of various simulations. Still, I'll bookmark it and play around sometime when I have more time and knowledge....

[adamct]

I'm going to order 200uf and 250uf, and experiment to see if there is a difference.

Separate question: for the 100uf 450V electrolytic caps, I was going to use Temco oil-filled motor run capacitors. These are rated for 440VAC. They don't provide a DC rating. The Wikipedia entry for film capacitors indicates that with a nominal AC rating of 350V, the DC rating should be 1000V. Elsewhere I've seen references to a rule of thumb that the DC rating is generaly 1.4x the AC rating.

Will the Temco 440VAC caps be OK to use in this position?

[2wo]

They'll be fine...John

[adamct]

Awesome. Thanks!