Sorry Phil, I don't have a source for you ( May want to try 'RF Parts' )
but I do have a question to anyone about the 3-500Z. A few months ago I
was into my Centurion cleaning and inspecting and noticed the tubes have
a silver coating around the lower part of the glass on the inside. I
can't see it when the tubes are on but when the filaments are off and
outside light source is used . This amp is about 3 years old and not used
all that much maybe 10 hours a month tops and generally don't run over 1
kw out. I've not noticed any drop in output or change in loading. Just
wonder if this is normal ageing or something to worry about. I have a few
older tube rigs that I know have this silver color in them, more than
just around the getters, and some are almost black but I never knew if
this was a sign of a weak tube or not.
Thank you all, 73 Jeff AA8VE
On Wed, 6 Oct 1999 09:00:38 -0500 email@example.com writes:
> Where can I get a good price on a pair of 3-500Z tubes?
> Phil, AA9ZZ
> .- .- ----. .. ..
> Phillip Smith
> Vincennes University
> Vincennes, IN 47591
> Voice (812) 888-5830 Fax (812) 882-2237
> Email: firstname.lastname@example.org
> Amateur Radio AA9ZZ, 7.030 Mhz CW
> Invest in your Success. Visit the Vincennes University Web Page.
Get the Internet just the way you want it.
Free software, free e-mail, and free Internet access for a month!
Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
FAQ on WWW: http://www.contesting.com/tentecfaq.htm
Administrative requests: tentec-REQUEST@contesting.com