From: phil_a@tpg.com.au   
      
   "Iain Churchus is full of Shit "   
      
      
   > The electrolytics are mounted under the chassis and   
   > physically very large indeed.   
      
      
   ** So fucking what ?   
      
      They are far to small  in VALUE  !!!!!!!!!!!!!!!   
      
      
   > Driving at 1kHz at 100W, my STA 100B has THD 0.09%   
   > Not too shabby, I am sure you will agree:-)   
      
      
   ** Not even faintly possible with the schem as published.   
      
      The modulation hum would exceed 1 %.   
      
      
   >> That 18 volts of ripple will rise to 45 or more at full output, or about   
   >> 8%.   
   >>   
   >> Good balance in the output valves will prevent any audible hum,   
   >   
   > Yes. even with ETS (ear to speaker) there is no audible hum on   
   > B+W Nautitlus 802.   
   >   
   >> Means there is a heck of a lot of work for the NFB loop to do.   
   >   
   >   
   > The STA100 has 20dB of NFB and is unconditionally stable.   
      
   ** So fucking what ?   
      
      
   > The manual also states that it can run contiuously and at full   
   > power into shorted or open loads.   
      
      
   ** Absolute bullshit.   
      
   The STA100 is a cut to the bone, PA amplifier.   
      
   Sold dirt cheap, maybe below cost of production in late 1967.   
      
   Just to get rid of them.   
      
   BTW   
      
   FFS learn to spell "continuously".   
      
      
      
   ....  Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)