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???
06/27/03 06:04
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#49485 - RE: Transformer isolation
Responding to: ???'s previous message
Kai I agree on the added isolation, but I think you will not get the collector of the bc550B below about .9 volt unless it is a germanium transistor( I don't have a data book here ). This will make it hard to turn the fet off unless the bias is changed to overcome this voltage. Terry

List of 18 messages in thread
TopicAuthorDate
detector of 220volt            01/01/70 00:00      
   Draw a schematic!            01/01/70 00:00      
   RE: detector of 220volt            01/01/70 00:00      
   ASCII Art            01/01/70 00:00      
   RE: detector of 220volt            01/01/70 00:00      
      RE: detector of 220volt            01/01/70 00:00      
      RE: detector of 220volt            01/01/70 00:00      
         RE: detector of 220volt            01/01/70 00:00      
   Transformer isolation            01/01/70 00:00      
      RE: Transformer isolation            01/01/70 00:00      
         RE: Transformer isolation            01/01/70 00:00      
         Circuit works!            01/01/70 00:00      
            RE: Circuit works!            01/01/70 00:00      
               RE: Circuit works!            01/01/70 00:00      
      RE: Transformer isolation            01/01/70 00:00      
         RE: Transformer isolation            01/01/70 00:00      
            RE: Transformer isolation            01/01/70 00:00      
   RE: detector of 220volt            01/01/70 00:00      

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