21 Jul
2015
21 Jul
'15
6:51 p.m.
On Tue, 21 Jul 2015, ben wrote:
On 7/21/2015 9:04 AM, Lyle Bickley wrote:
One of those tricks they use in modern aluminum electrolytics is to emboss
or etch the foil. This gives it more surface area, so they can use a
smaller amount of foil and obtain the same capacitance. The foil and
insulator in many modern parts is also much thinner.
IMHO, these "white papers" indicating that ALL aluminum electrolytic
capacitors decay is obvious nonsense - based on real life experience
- not someones theory...
The whole problem with the caps is the water between foil. As modern
caps use more and more tricks to improve the surface area,the water
margin gets thinner and thinner.At least with GOOD vacuum tube equipment
you could replace caps.