From: trevor@rageaudio.com.au   
      
   Well, it's been a few years. My 1700B has decided to cease operation, so   
   it really is time for a repair and full rebuild. Here's what I am planning:   
      
   * Replace all electrolytic caps in the unit. One of the main filter caps   
   is dead, so it's time to do the lot.   
   * Replace all the carbon composition resistors. A quick check on half a   
   dozen has shown a 15 ~ 25% upward drift. Why did ST use CC resistors?   
   I've been using cracked carbon since the 1960s.   
   * I was going to replace the OP amps with LME49710 OP amps, but, well,   
   you know. NLA. AD797s look like the best, available option. Any other   
   suggestions?   
   * Replace all the opto couplers.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)