Hi everyone
I have a single-ended headphone tube amplifier and I'd like to upgrade some of its components. I understand that when talking about audio equipment everything ends up in a debate. To be perfectly honest, I'd like to avoid that. I really would like to see this project through and decide for myself if it was a waste of time and money or not. But some help in choosing the correct values for capacitors would be amazing.
The components in question are the electrolytic capacitors of a low-pass filter. They are rated at 22uF and 500V. I'd like to replace them with foil capacitors. The capacitors I had in mind, which I believe are built well and don't cost too much, only have 450V. Would that work as well?
I am also planning to add some foil capacitors in parallel to the power supply capacitors (220uF 450V). Would the parallel capacitors also need to be rated at 450V or could I go a bit lower?
Someone, who I thought had a lot of knowledge about this, but now I have my doubts, recommended me to add some parallel capacitors to the cathode bypass capacitors aswell (220uf 16V). He recommended me to use 10uF in this specific position because it provides, from 500 to 20000 Hz, the same electrical path as a 220u cathode bypass cap.
Is 10uF a good value for this?
I'll attach some pictures of what the amplifier looks like inside and the circuit design (not sure if the PSu schematic is correct).
Thank you!
I have a single-ended headphone tube amplifier and I'd like to upgrade some of its components. I understand that when talking about audio equipment everything ends up in a debate. To be perfectly honest, I'd like to avoid that. I really would like to see this project through and decide for myself if it was a waste of time and money or not. But some help in choosing the correct values for capacitors would be amazing.
The components in question are the electrolytic capacitors of a low-pass filter. They are rated at 22uF and 500V. I'd like to replace them with foil capacitors. The capacitors I had in mind, which I believe are built well and don't cost too much, only have 450V. Would that work as well?
I am also planning to add some foil capacitors in parallel to the power supply capacitors (220uF 450V). Would the parallel capacitors also need to be rated at 450V or could I go a bit lower?
Someone, who I thought had a lot of knowledge about this, but now I have my doubts, recommended me to add some parallel capacitors to the cathode bypass capacitors aswell (220uf 16V). He recommended me to use 10uF in this specific position because it provides, from 500 to 20000 Hz, the same electrical path as a 220u cathode bypass cap.
Is 10uF a good value for this?
I'll attach some pictures of what the amplifier looks like inside and the circuit design (not sure if the PSu schematic is correct).
Thank you!
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