From: burrynulnulfour@ppllaanneett.nnll   
      
   On 31-3-2018 6:26, Tom Biasi wrote:   
   > On 3/30/2018 1:09 PM, Peter Percival wrote:   
   >> I wish to experiment with valves (or tubes, if you prefer) and I shall   
   >> begin by building a power supply.  What voltages (at what currents)   
   >> should it supply?  Where may I find circuits?  Naturally, the devices   
   >> used should be easily obtainable.   
   > The specifications would depend on what you wanted to supply.  I suggest   
   > that you read up on the voltages used in such circuits. You could kill   
   > yourself.   
   >   
   Tubes are fun.   
      
   In my practice year(1967) the first one was a device to   
   show cosmic rays.   
   It put 20.000 volts on two plates a 1/3 inch apart,   
   less than 10 microseconds after a particle passed through those   
   plates.   
   The ionized trace the particle left behind showed as a flashing trail.   
      
   Next thing was an experiment control unit to print the count of five   
   Philips counters onto one Kienzle printer in a radiation lab at predefined   
   time intervals.   
      
   Both projects in tubes, working supply voltages 300 - 500 and 20.000 volts.   
      
   And I enjoyed them  .   
      
   Worst accident was a set of four electrolytes exploding.   
   (500 V reverse connected is a bit stupid........)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)