Will it explode???

[Merlin Zener]

Tony Allgood wrote:
> 
> Hi all,
> 
> I've got a tube amp with a 485 volt HT supply. It needs a new filter
> (smoothing) cap of 22uF. I've got 450V rated ones. What do you reckon,
> safe or not? If not can I get hold of 500V plus capacitor without having
> to do a two in series plus resistors job? Farnell, CPC and Maplin can
> not supply such beasties.
> 

er, no!
The working voltage is to be approached, not exceeded...
I generally allow an easy 25 - 30 percent extra *above* what
I think will be there, to be safe.
Stick two in series, if you can fit them in physically, sometimes
it's even cheaper to do it that way.

-- 
Merlin Zener                            mailto:merlin at ion.com.au
Piano and Synthesizer               voice: (+61) (0) 418 779 594
Gold Coast, Australia              http://www.ion.com.au/~merlin

"No-one ever went blind from looking on the bright side of life"