ComputerVoltageSources

It does sound interesting and prlly does not add much circuitry.
  
  why not include the idea.  If the board gets to be impossible we can
  discuss it then...
  
  H^) harry
  
  

Grant Richter <grichter@...> wrote:          I was thinking about the full configuration using 16 potentiometers.
  8 input presets and 8 input attenuators. That would be enought to make a nice sequencer if 
  you could read the two banks of pots as voltage values.
  
  There is actually a trick we could use to keep normal function but read the pots as two banks 
  of 8. It requires one port line and input jacks with normalized switches.
  
  Use the port line to switch a 10 volt reference from the bank of 8 offset pots (where it is 
  normally connected) to all the input jacks switch inputs.
  
  This shuts off the offset pots and allows the 8 attenuator pots to be read as voltage values, 
  while still serving as attenuators under normal circumstance (something plugged into the 
  input jack).
  
  The offset pot summer values would change to 200K, instead of 301K if the offset pots were 
  connected to +15V.
  
  Just thought I'd mention it in case Harry thinks it is worth the extra effort.
  
  
  
                  
        
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