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   sci.electronics.basics      Elementary questions about electronics      72,318 messages   

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   Message 71,329 of 72,318   
   Cursitor Doom to S Deyoreo   
   Re: Thermionic valve projects?   
   20 Jul 19 13:15:57   
   
   From: curd@notformail.com   
      
   On Fri, 19 Jul 2019 17:48:22 -0700, S Deyoreo wrote:   
      
   > As a kid, I used to use a 90v battery for the plate supply. Opened it   
   > one day and it was 10 9v batteries!   
      
   You sound surprised.   
      
      
      
      
      
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