Yea I am aware of that epidemic. But that really didnt start plauging us until about the late 1990s to early 2000s or so. And they were mostly CapXon, etc... Nichicon did have a bad batch but that was only for a couple years.
We are talking late 80s early 90s stuff here, which would have been unaffected by this.
Also how the cap leaks depends on manufacturing process and how they are used, and stored. they are only rated for a finite lifetime of a certain temperature range. the graphs are available.
ELNA isnt the only, and actually aside from united chemicon, and panasonic, ELNA was one of the best caps to have. Audio equipment from the 70s/80s were FILLED with ELNA caps.
The thing with elna capacitors, back then they really werent rated for low-esr which is critical in switching power supply applications. So of course they died. I had to change a shitload of elna and nichicon capacitors in an 80s fax machine once, they were ALL bad. and this was 2002.
We are talking late 80s early 90s stuff here, which would have been unaffected by this.
Also how the cap leaks depends on manufacturing process and how they are used, and stored. they are only rated for a finite lifetime of a certain temperature range. the graphs are available.
ELNA isnt the only, and actually aside from united chemicon, and panasonic, ELNA was one of the best caps to have. Audio equipment from the 70s/80s were FILLED with ELNA caps.
The thing with elna capacitors, back then they really werent rated for low-esr which is critical in switching power supply applications. So of course they died. I had to change a shitload of elna and nichicon capacitors in an 80s fax machine once, they were ALL bad. and this was 2002.