I'm trying to do a recap of a 9090. For one of the caps on the protector ciruit board the service manual calls for an electrolytic, but when I removed the old cap its a bipolar. Should I replace the BP with an electrolytic, use a BP, or does it matter. From what I've read on this site, I'm planning on leaving it as a BP, but I wanted to make sure. Thanks in advance.

Phil

Because of the errors in the manuals and revisions, I'd stick with what's in it.

A bipolar cap is a type of capacitor that may be used with a DC voltage on either lead. There are bipolar film caps, ceramics, electrolytics, and numerous others. Your post suggests that if it is bipolar, then it cannot be an electrolytic. I think you are confused.

Because of the errors in the manuals and revisions, I'd stick with what's in it.

That's what I was thinking, but I just wanted to be sure.

A bipolar cap is a type of capacitor that may be used with a DC voltage on either lead. There are bipolar film caps, ceramics, electrolytics, and numerous others. Your post suggests that if it is bipolar, then it cannot be an electrolytic. I think you are confused.



My memory on the different type of caps is a little fuzzy, no question on that, but I did know that a bipolar was a type of electrolytic that could be used with DC on either lead. I didn't realize that it could be other types though. My confusion is whether I can use a non-bipolar electrolytic to replace a bipolar in this circuit and whether the service manual is right and someone has replaced the cap with the wrong capacitor.