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Planning to build benchtop 500V tube PSU, help needed.

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Wolfgang:
Hi,

have you seen that there are books full of PSU designs for tube audio, like this one:

Valve Amplifiers, by Morgan Jones

or have a look at this thread of EEVBlog:

https://www.eevblog.com/forum/projects/overhauling-high-voltage-vacuum-tube-(valve)-power-supply/msg389145/#msg389145

play safe, have fun.
  Wolfgang

David Hess:
For practical reasons I would use silicon diodes to replace the rectifier tube and zener diodes to replace the voltage reference tube.

The same configuration with a single pass transistor and single transistor error amplifier was common in early power supplies.

TERRA Operative:
But practical is less fun! :D

I'm looking at the C-L-C filter section at the moment, and 8uF, 600V capacitors are a bit hard to come by... How much leeway do I have to substitute values (and the 10H choke too)?

001:

--- Quote from: TERRA Operative on December 14, 2018, 10:55:05 am ---But practical is less fun! :D

I'm looking at the C-L-C filter section at the moment, and 8uF, 600V capacitors are a bit hard to come by... How much leeway do I have to substitute values (and the 10H choke too)?

--- End quote ---

it is wery difficult at XXI century
Do You Really NEED 500V output?

Wolfgang:
You need two 450V caps in series with equalizing resistors. No big deal.

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