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   rec.audio.tubes      Tube-based amplifiers... that go to 11      52,877 messages   

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   Message 51,171 of 52,877   
   Phil_S to All   
   Re: SE Output Transformer winding questi   
   03 Nov 10 10:41:53   
   
   c9693d8f   
   From: psymondsnospam@comcast.net   
      
   "Patrick Turner"  wrote in message   
   news:7f842bb6-a5c3-4f32-9d76-d3ba9519060e@r29g2000yqj.googlegroups.com...   
      
      
   Patrick:   
   I didn't want to be presumptive.  A friend said you hang out here.  I   
   couldn't find your web pages.  Unfortunately, there is another Patrick   
   Turner who plays US Pro Football.  Searching turned up nothing.  Thank you   
   for your thoughtful reply and for the link to your pages.   
      
   I appreciate your comments about not trusting inexperienced instinct;   
   impulsiveness is even worse.  You don't know the half of it.  This was one   
   of those days when I was just looking for an excuse to do something like   
   this.  I've been dabbling in building guitar amplifiers for a number of   
   years.  I've done about a dozen.  Only the first one was from a kit, so I've   
   got reasonable amateur level experience.  I still have much to learn.  I'm a   
   curious person.  As I said, I figured this was a cheap OT and it was an   
   opportunity to see what makes it tick.  This is about fun with transformers.   
   I didn't imagine I'd get from this "project" a high quality OT.  Even so,   
   for a guitar amp, I believe quality is a bit less of an issue.  I don't need   
   20Hz at the low end or 20KHz at the top end.   
      
   As for the meter, I was really quite surprised to see that I'd toasted it.   
   It is a Triplett 9045, which is OK for a hobby meter and has stood by me   
   well for several years.  I've got two more hand held meters and I just put   
   the old Fluke 8600A bench meter up for a battery charge.  I'm sorry to see   
   that Triplett go.  It seems to be working on everything but the Ohms.   
      
      
   Thanks also for some calculations, confirmations and corrections.  This,   
   with your SE pages on the web should keep me busy for a while.  I'm feeling   
   much better about being pointed in the right direction.  I am hoping for the   
   simple satisfaction of making something that works.  How well it works can   
   be a surprise.  Some of the measurements will be difficult to make with a   
   limited amount of test equipment.  I think you've given me the excuse I need   
   to get the digital caliper.  This is an inexpensive tool and who doesn't   
   need another tool?   
      
   I can easily get a new tranny.  That, as you've gathered, isn't the point.   
   This is an opportunity to learn something.  I had trouble letting it pass me   
   by.  You've pretty well confirmed my suspicions about the quality of what   
   I've got.  I'm OK with it.   
      
   Finally, your suggestion about running a 6L6 as a triode is just wonderful!   
   I'm sitting on a box of a dozen Russian 6P3C  (not the 6P3C-N), as well as a   
   few used real USA made 6L6 and 5881 tubes, and I've been looking for an   
   excuse to use them.  This might be just the thing.   
      
   Best regards,   
   Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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