Electronics > Projects, Designs, and Technical Stuff
Planning to build benchtop 500V tube PSU, help needed.
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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