From: legg@nospam.magma.ca   
      
   On Sun, 12 Nov 2023 22:18:59 -0800 (PST), William van Niekerk   
    wrote:   
      
   >My 2335 has been reliable for so many years and has now become faulty. The   
   horizontal trace will only extend to about halfway of the scale and then folds   
   backon itself. I have checked all the voltages on circuit board A12 and they   
   are all good. I would    
   appreciate any tips on how to diagnose this fault.   
      
   Start with:   
      
   https://groups.io/g/TekScopes   
      
   Horizontal deflection is usually pretty simple circuitry.   
      
   Could be drive transistors going flakey.   
      
   RL   
      
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