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Andy Neil
08/29/12 14:17
Read: 615 times
Basingstoke
Uk


 
#188193 - "Suddenly" ?
Responding to: Oliver Sedlacek's previous message
Oliver Sedlacek said:
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.

What, exactly, do you mean by, "suddenly"?

If it had been working, then you switched it off, then the problem appeared when you switched it back on - that could be something that go over-stressed due to the startup "inrush"...

Electrolytic caps would be worth a close look...

List of 20 messages in thread
TopicAuthorDate
Repairing old kit, any advice?      Oliver Sedlacek      08/29/12 13:31      
   "Suddenly" ?      Andy Neil      08/29/12 14:17      
   Perhaps Current Limiting        Justin Fontes      08/29/12 17:00      
      More info      Oliver Sedlacek      08/30/12 06:18      
         for those of us that ...      Erik Malund      08/30/12 07:01      
            Voltage-controlled      Per Westermark      08/30/12 09:07      
          pentodes? Tubes? (Valves?)      Neil Kurzman      08/30/12 17:21      
            Tubes as in Mullard EL34s      Oliver Sedlacek      08/31/12 01:03      
               One last bit of advice        Justin Fontes      09/04/12 11:30      
         Old electrolytics      Oliver Sedlacek      09/05/12 04:30      
            well, in lieu of a scope ....      Erik Malund      09/05/12 07:12      
            Last      Per Westermark      09/05/12 08:26      
            The problem isn't with the "old gear" ...       Richard Erlacher      09/05/12 09:57      
            Good hunch, then      Andy Neil      09/05/12 12:38      
               Update, not the electrolytic..      Oliver Sedlacek      09/07/12 02:01      
                  Google      Neil Kurzman      09/07/12 11:37      
                  ebay      Mahmood Elnasser      09/07/12 12:13      
                     Or just the Mullard      Neil Kurzman      09/07/12 13:54      
                  Anyone got an EL34?      Andy Neil      09/07/12 13:49      
                     Here you go...      Andy Neil      09/07/12 15:31      

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