Hello,
I have a question for the electronics engineers,
Which capacitors could I use as an alternative for the values 3300uf/25V?
I have found the Nichicon FG, which are slightly longer than the Nichicon FW.
See the picture, but unfortunately there is not enough space.
Same or higher voltage, capacitance to your taste (although that has the potential for a very negative impact).
Need size specs for the caps, else it is blind guessing.
Hello,
And thank you.
I would stay with the 3300 uf value.
If you could go a little higher with the voltage, the Mundorf might be interesting.
The dimensions of the Nichicon Fw are 16 mm in diameter and 25 mm high.
The Nichicon Fg is 18x40.
You can go with 4000V rated capacitors. Going with something rated less than the factory ones is dangerous.
Yes, I have read about that.
Do they have to be radial or could axial ones also work?
Maybe I could then look for more space.
Apparently there are only these Nichicon FW in this size.
Everything else is oversized in radial design.
If they are, then they are qualitatively inferior to the Nichicon.
Radial: Leads come out of one end
Axial: Leads come out on both ends.
Size ≠Quality
Okay, thanks for the clarification.
What if you were to go higher or lower with the Uf value but stay with the 25v?
Will there be distortions or similar?
Audio Note only has the 2200uf and the 4700 uf in their range, so both are quite far away from the 3300uf.
The Farad rating is the size of the bucket, so to speak.
The green dotted line is what comes out of the rectifier, the purple line is how that looks when adding a capacitor.
Then why not just put ALL the capacitors?
Well, you could, but then it would look like the blue line in the following:
In this case, the capacitors being in the power supply and not in the signal path, they just smooth out voltage fluctuations. So no direct influence to sound.
Okay, thanks again for the clarification.
Then it doesn’t make much sense to change them, if I understood correctly.
What could make sense is to install “Bypass Capacitors”. Lower Farad rating (22uF or even lower) foil, tantalum or ceramic caps in parallel with the existing ones.
The theory (and practice) is that smaller caps can help with transients
Question is how you would get them installed.
