XPost: sci.electronics.basics, alt.audio.equipment   
   From: rabbitsfriendsandrelations@hotmail.com   
      
   John Fields wrote:   
      
   > On Mon, 14 Jul 2008 14:59:54 -0700 (PDT), simplesal   
   >  wrote:   
   >   
   > >I’m looking for away to amplify the audio signal coming from my   
   > >computer sound cards output.   
   > >I’m trying to amplify the output voltage to 31 volts and the output   
   > >current to 1.5mA can someone recommend a small amplifier to do the job   
   > >or a circuit that will do this for me.   
   > >   
   > >I'm just trying to do some testing.   
   >   
   > ---   
   > 31 volts * 1.5mA is 46.5 milliwatts, so if your sound card puts out   
   > more than that just connect a transformer to it with the turns ratio   
   > selected to give the output voltage you want into the load.   
      
   That would be a simple solution but try finding such a transformer these   
   days.   
      
   Graham   
      
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