"ScottW" wrote in message
news:8ZgTf.138823$0G.62321@dukeread10...

"Robert Morein" wrote in message
...

"Sander deWaal" wrote in message
...
"Robert Morein" said:

I think that Curl's concern was that the speed of the capacitors is also
important. It's not simply a matter of capacity. This is why
electrolytics
are frequently bypassed by small caps with low ESR.


This used to be so.

Modern electrolytics, selected from a good brand low ESR 105 deg.
range, are so astoundingly good, that bypassing is IMHO not necessary.

What about the old CDR tubular foil caps I used? How good are they?


Please do replace the remaining old capacitors, apparently they are
prone to shorting.

Apparently. The next time one shorts, I'll do the rest.


Personally, I wouldn't wait. A small electrolytic shorted in a printer
at work in a locked office and it took a while to figure out what that
stench
was and where it was coming from. One tiny cap and about 10,000
sq feet of office space stank for days.. and the office was unocuppiable
for over a week. It would be awful to have that happen at home.
BTW... the printer wasn't on... the power supply was always hot when
plugged in. No switch on the AC.
My kids Lexmark with a brick on back was the same way and that thing
melted on us but luckily didn't smoke.
I'm kind of surprised U/L lets em get away with that.
You leave the house for a few days and you think turning crap off is good
enough...think again.

ScottW
The electrolytics aren't the ones that smoked.
These are tiny film caps. They are dry. No odor was detected.