[R-390] Capacitor checkers

n4buq at knology.net n4buq at knology.net
Fri Apr 20 16:20:27 EDT 2007


On Fri, 20 Apr 2007 19:29:26 +0000, "Gene Dathe" <dathegene at hotmail.com> 
wrote :

> THANK YOU to all who replied to my post wtb if deck.  Many offers, deck 
is 
> on the way.
> 
> I am currently building up my supply of test equipment and am wondering 
what 
> you gents use to check caps.  Would a Heath IT-11 work well for vintage 
BA?  
> I think I have a C551 problem...
> 
> Thanks,
> 
> Gene   73 de NAØG

Gene,

If it turns out you do have problems with C551, you might want to look at 
some pictures of one way I solved the problem.

http://www.knology.net/~thelanding/R390A/AGC/

It looks kind of funny, but if you don't like cutting into oil-filled caps, 
etc., this works and doesn't require any hacking to the IF deck.  Also, you 
allows you to experiment with different capacitors for the SLOW AGC 
setting.  Probably not the big selling point here, but it's a possibility.

I have another alternative I'm working that won't look quite so hokey but 
haven't scheduled time to go to the machine shop for it.  It, too, won't 
require any hacking to the deck and it will look a bit more like a "real" 
component.

73,

Barry - N4BUQ


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