Tube ceramic looks OK, no sign of arcs. Some discoloration/dirt
typical of a tube that has been in service more than 10 years but
nothing that looks like it would cause trouble. Tube tabs have no
visible tarnish.
It's a bit harder to say about the socket contacts. There is some
but not much tarnish on the visible surfaces - a few small spots
here and there. The surfaces that contact the tube tabs aren't
readily inspected without disassembly. This one has the "solid"
contacts, not the type with many little rounded fingers. I hate to
disassemble one of these without probable cause but if nothing else
seems to help maybe I need to go there.
Paul
On 04/17/2013 10:16 AM, Carl wrote:
I dont know if this has been covered yet but what does the socket contacts
and tube tabs look like? If you have a lot of silver sulphide the screen
might be partially bloating.
I use Tarn-X and a Q-Tip to clean ALL surfaces and then give a water rinse.
Also check the tube ceramic for any arcs.
Carl
KM1H
--
Paul Kelley, N1BUG
RFI Committee chair,
Piscataquis Amateur Radio Club
http://www.k1pq.org
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|