[TenTec] [Ten Tec} Centurion loading cap

[Brian Carling]

Well, the rewinding guy at TRS took care of mine. It is now in "better than new" condition.

Best regards - Bry Carling



> On May 11, 2014, at 5:20 PM, "Hank P" <pfizenmayer at q.com> wrote:
> 
> If you reduce the air gap even with “insulation” the breakdown voltage goes DOWN not up. Now sometimes , if the air gap is sufficient ,  the “insulation” will modify the field  of a sharp point or rough areas on a surface enough to keep it from breaking down – but it’s the field modification – not the “insulation” .
> 
> 
> Don’t feel bad , others  had not thought about that either -  years ago – on a military project – an air variable we had was arcing , and the capacitor vendor said he had the solution , he  made us a special by putting  teflon coating on the rotor and stator plates – it broke down at a lower voltage than before !!!!! After the fact it was obvious – but we all suckered ourselves  in . 
> 
> But having said all that some Glyptal or about anything that will smooth that area – cover any sharp points and not decrease the air gap too much may just work. 
> 
> My recollection of that cap is it is made by  TT or someone for them  with spacers and plates all bolted together – you might be able to get a new plate/plates  – or if you tore it apart you might be able to get the area very smooth . If it is out near the edge you could just remove that area completely and smooth off the cut edge .
> 
> 73 Hank K7HP  
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