New rocket build

[overtone]

Hi Pablo,
thank you for sharing this inspiring build and your clips with us.
I have not seen that way of cap-mounting to fend off ringing before. I thought the caps went in parallel with the diodes. But I'm no expert on ringing, never heard it, so I've never tried to snub it out. I really wonder what it is all about? I guess I need to open Merlin's book up again

Just for the record, I noticed this in your post above:

The rectifier tube is paralleled by 2 diodes.

Looking at your photos I think you meant to write that the rectifier is preceded by diodes in series. If they were paralleled, the tube rectifier would not be doing much.
Enjoy the amp!

Best, tony

[pablogt]

Tony: you're right, diodes do precede the tube.

To tell you the truth I did not notice much difference by installing the diodes. I think the ringing is what is called "switching noise" by the HIFI people. Since there is no audio signal in there, I thought no harm would be done by putting a snubber. Check it out at Merlin's book on power supplies, page 29.

Pablo

[dorrisant]

wow pablo,
that is a beautiful looking build... i think i have a tear in my eye...
thanks for posting!

tony