[R-390] OT: Tubes needed for TEK561A

[Dennis L. Wade]

Hi Barry (III),

	If you haven't found it already, you might try the "TekScopes" list 
on Yahoogroups.  There are some true experts hanging out there.  I 
have a 545A and a 531...but no spare tubes.  Luckily, I haven't 
needed them yet.  These scopes just keep going, and going, and 
going.....

	Good luck...pass on any sources you might dig up.

             Dennis

> I dragged the scope out for something this past weekend and the
> vertical amp has developed problems.  I checked the tubes and both
> 6DJ8s (EC88?) are very weak.  Just my luck -- these are apparently
> popular with the audiophile gang and, thus, they can be pretty
> expensive.  Anyone have any good suggestions on an inexpensive source
> for these?
> 
> Hopefully the problem is with these tubes.  I have zero experience
> troubleshooting scopes.  Fortunately, the module is not complex so it
> might be a simple case of finding a bad component and replacing it (of
> course using the appropriate silver solder (which I will also
> need...sigh)).
> 
> Thanks,
> 
> Barry(III) - N4BUQ
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-----------------
"If you can remain calm, you just don't have all the facts"

Dennis Wade
KG6ZI
Carmichael, CA