[Hammarlund] More HQ129 X Tubes??

[Glen Zook]

Tubes last for decades!  I have numerous tubes from
the 1920s and 1930s that are still working fine.  If
you replace all of the tubes you may well have to do a
complete alignment (almost from "scratch").  Then, as
the tubes "age" (over several months) you may have to
align it again.

If there is a tube that is defective, then certainly
replace it.  However, if the receiver is working up to
specifications then don't replace any tubes.  It
definitely is a good idea to have spares around just
in case a tube goes bad.

Glen, K9STH


--- Andy Bullington <abullington@comcast.net> wrote:

Now comes the question of tubes. I'm of a mind to
replace the whole set. Most of them are inexpensive.
There seem to be differing opinions on this, however.
What do you guys think?

=====
Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

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