From: jjhudak@gmail.com   
      
   On Monday, October 24, 2022 at 2:12:12 PM UTC-4, Peter W. wrote:   
   > OK.    
   > What is known:    
   >    
   > a) Scope is blowing mains fuses.    
   > b) RIFA -branded caps blew up.    
   > c) The power-supply board was affected.    
   >    
   > Suggestion:    
   > 1) Remove the power-supply board.    
   > 2) Replace all, repeat: ALL the capacitors on that board of any nature, type   
   or style with the correct (but modern) replacement type.    
   > 3) Check each other component on the board. Diodes, regulators, transistors,   
   whatever.    
   > 4) Replace any that are either bad or the slightest bit questionable.    
   > 5) Replace board - carefully (now might be an opportunity for a DBT to 'do   
   its thing' - but a metered Variac would be better).    
   >    
   > I kinda-sorta think that will do it. KISS and all that.   
   > Peter Wieck    
   > Melrose Park, PA   
      
   Ditto.....I was going to suggest this but some ppl want to find *the*   
   problem.  For *vintage* stuff, it makes no sense to me, Replace all the caps,   
   check all resistors.  Having a solid power supply is critical for the rest of   
   the unit to work properly,    
   so why screw around with replacing only one bad component?  As long as you got   
   it apart.....Do you really want to revisit this later when another cap dies?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)