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???
06/23/06 22:27
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#118981 - 9v batteries
Responding to: ???'s previous message
There are different construction techniques used in making these 9v batteries. I've seen 3 different internal constructions. Some of them could be noisier than the others mechanically, if you abuse them.

Alkalines:
Duracell - 6 AAAA, Welded
Energizer - 6 AAAA, Compression
Ray-O-Vac - 6 Custom rectangular cells, stacked vertically

List of 28 messages in thread
TopicAuthorDate
DC/DC converter for audio application            01/01/70 00:00      
   It can be done            01/01/70 00:00      
      Murata filter            01/01/70 00:00      
         is there a thing called a "Murata filter            01/01/70 00:00      
   Murata            01/01/70 00:00      
   People who can hear caps...            01/01/70 00:00      
   Caps, guitarplayers and DC/DC converters            01/01/70 00:00      
      Some hints...            01/01/70 00:00      
         Re : some hints            01/01/70 00:00      
            78L12, 79L12            01/01/70 00:00      
            LM317L and LM337L            01/01/70 00:00      
               He could add a choke...            01/01/70 00:00      
            LDOs            01/01/70 00:00      
               Re:LDOs            01/01/70 00:00      
                  Very helpful, though            01/01/70 00:00      
                     Re : Very helpful, though            01/01/70 00:00      
                        Pop-eliminator            01/01/70 00:00      
                           Re : Pop-eliminator            01/01/70 00:00      
                              Caps charging            01/01/70 00:00      
      9v batteries            01/01/70 00:00      
         Re : 9v batteries            01/01/70 00:00      
            Batteries which hum            01/01/70 00:00      
               Re : Batteries which hum            01/01/70 00:00      
                  Bridging the divide            01/01/70 00:00      
                     I remember            01/01/70 00:00      
                     Noisy batteries            01/01/70 00:00      
   Linear tech LT1533            01/01/70 00:00      
      Re : Linear LT1533            01/01/70 00:00      

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