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I'm recapping my beomaster 3300 but I have a problem with the two filter caps I hope you guys can help me with.
The caps aren't marked well, but my assumption was that the darker side was the negative. This would mean however that the connection is red wire to negative, positive to negative, and then blue to positive the other cap.
I would normally assume red would go to positive, but it could be that I'm mistaken or that I'm mistaken in the polarity on the original caps.
Any of you know the correct way to connect them?
Also a suggestion on replacement caps would be good. I have two regular 105c Vishay caps, but should I try find something better?
Red is positive.Blue is negative.The caps common joint is ground (negative pin from the cap with the red lead on positive and positive pin from the cap with the blue lead).
Martin
Hi
Thank you for your reply. Yes the red positive was my understanding as well, why I found it odd it was connected to negative on the first cap.
Just so I understand you correct. The caps are seriel connected, so the order would be this:
Cap1: Red Wire -> Negative Pin, Black Wire -> Positive Pin
Cap2: Cap1 Positive Pin -> Negative Pin, Blue Wire -> Positive Pin
No.It's a positive (red) and a negative (blue) supply with a common ground (black).
Cap 1 Positive terminal REDCap 1 Negative terminal BLACK and also connected to Cap 2 Positive terminalCap 2 Negative terminal BLUE
Look at the schematics!
Yes, I did and, that is why I wrote here, cause if you see on the pictures that is not how it's actually connected originally. Unless the caps are marked opposite of normal caps? Marking on positive instead of negative?
You can trust how they were mounted from factory.If in doubt put a voltmeter on.
I will, and I'm pretty sure red is indeed positive. But I'm afraid I don't know of a way to measure polarity on a capacitor, so should I assume that the polarity is marked with positive on the original caps, unlike what you would normally expect of modern caps where negative is marked?