From: nobody@nowhere.com   
      
   On 4/9/2020 9:42 PM, Peter Percival wrote:   
   > I wish to buy a power supply delivering up to 500V for experiments with   
   > thermionic valves.  What would be a suitable current?   
   >   
      
   As others have pointed out, you need to be more specific.   
   For example, if all you want to do is run a 12AX7/ECC83 double   
   triode as a preamp, all you need is 250-300V at a few milliamps,   
   plus 6.3 or 12.6V for the heater.   
      
   If you want to include a power amp, then you'll need a much   
   beefier power supply.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)