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08/29/12 19:31
Modified:
  08/29/12 19:37

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#188192 - Repairing old kit, any advice?
I've been using an old Farnell Type E350 lab supply (0 to 350V at 0 to 200mA) which has suddenly stopped producing full output volts. There's nothing obviously amiss inside, but I'd like to repair it. I've got the service manual from, but can anyone give me any advice on dealing with old HV supplies (apart from 'be afraid, be very afraid')?

List of 20 messages in thread
TopicAuthorDate
Repairing old kit, any advice?            01/01/70 00:00      
   "Suddenly" ?            01/01/70 00:00      
   Perhaps Current Limiting            01/01/70 00:00      
      More info            01/01/70 00:00      
         for those of us that ...            01/01/70 00:00      
            Voltage-controlled            01/01/70 00:00      
          pentodes? Tubes? (Valves?)            01/01/70 00:00      
            Tubes as in Mullard EL34s            01/01/70 00:00      
               One last bit of advice            01/01/70 00:00      
         Old electrolytics            01/01/70 00:00      
            well, in lieu of a scope ....            01/01/70 00:00      
            Last            01/01/70 00:00      
            The problem isn't with the "old gear" ...             01/01/70 00:00      
            Good hunch, then            01/01/70 00:00      
               Update, not the electrolytic..            01/01/70 00:00      
                  Google            01/01/70 00:00      
                  ebay            01/01/70 00:00      
                     Or just the Mullard            01/01/70 00:00      
                  Anyone got an EL34?            01/01/70 00:00      
                     Here you go...            01/01/70 00:00      

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