Strict Standards: Non-static method phpbb_feed_factory::init() should not be called statically in /home/bigroadblues/bigroadblues.com/forum/feed.php on line 66
[phpBB Debug] PHP Notice: in file /feed.php on line 171: Cannot modify header information - headers already sent by (output started at /feed.php:66)
[phpBB Debug] PHP Notice: in file /feed.php on line 172: Cannot modify header information - headers already sent by (output started at /feed.php:66)
Big Road Blues Discussion Forums 2005-12-15T14:36:55+00:00 http://www.bigroadblues.com/forum/feed.php?f=7&t=839 2005-12-15T14:36:55+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8411#p8411 <![CDATA[RE: Effect of cold on tubes/valves]]>
"A cheerful heart is good medicine."

Statistics: Posted by ricochet — Thu Dec 15, 2005 2:36 pm


]]>
2005-12-15T14:32:29+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8410#p8410 <![CDATA[RE: Effect of cold on tubes/valves]]> Statistics: Posted by jeffl — Thu Dec 15, 2005 2:32 pm


]]>
2005-12-15T02:59:35+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8409#p8409 <![CDATA[RE: Effect of cold on tubes/valves]]>
Go to http://tubesandmore.com/ and get a reprint of one of the last RCA Receiving Tube Manuals, I believe it's RC-31. There's lots of good information in there about tubes in general, along with data for most of the commonly encountered types. None of the old tube manuals or electronics books had any caution about handling tubes with bare fingers in them, and I can tell you from direct observation that professional TV and radio repairmen routinely handled them that way.

In fact, the (nearly entirely female) workforce that assembled tubes worked bare handed, as gloves would've unacceptably hindered their manual dexterity. Certain tubes that used very fine grid wire suffered clusters of failures that were traced to being assembled by women on their menstrual periods, which apparently caused some detrimental effect on their fingers' perspiration, resulting in unacceptable corrosion of the ultra-fine wire. Due to the well known effect of women together in confined spaces becoming synchronized, they'd actually have to shut down those assembly lines for several days each month. But they didn't cause any problems with the glass.
:)

(That's not out of a tube manual. I got that from some of the retired guys who designed and produced tubes, on the Tube Collectors' Association mailing list.)

"A cheerful heart is good medicine."

Statistics: Posted by ricochet — Thu Dec 15, 2005 2:59 am


]]>
2005-12-15T02:07:02+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8408#p8408 <![CDATA[RE: Effect of cold on tubes/valves]]> Statistics: Posted by nhslim — Thu Dec 15, 2005 2:07 am


]]>
2005-12-14T23:00:10+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8407#p8407 <![CDATA[RE: Effect of cold on tubes/valves]]> Statistics: Posted by jeffl — Wed Dec 14, 2005 11:00 pm


]]>
2005-12-14T22:29:02+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8406#p8406 <![CDATA[RE: Effect of cold on tubes/valves]]>
I surmise that tale started when someone pulled a hot tube with a rag or glove to avoid burning their fingers and someone else misconstrued it as a finger oil deterrent as with halogen light bulbs.

Bosco

Statistics: Posted by bosco — Wed Dec 14, 2005 10:29 pm


]]>
2005-12-14T16:38:31+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8405#p8405 <![CDATA[RE: Effect of cold on tubes/valves]]>
i heard you should never touch tubes with your bare hands cus the oils will cause heat spots and burn up the tubes?

others tell me they pull and replace tubes all the time with there fingers and have no probs at all.

Statistics: Posted by blues power — Wed Dec 14, 2005 4:38 pm


]]>
2005-12-09T21:30:10+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8404#p8404 <![CDATA[RE: Effect of cold on tubes/valves]]> Statistics: Posted by jeffl — Fri Dec 09, 2005 9:30 pm


]]>
2005-12-09T21:00:55+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8403#p8403 <![CDATA[RE: Effect of cold on tubes/valves]]> loose conntection=high resistance. high resistance=heat
heat=melting pastic

Statistics: Posted by blues power — Fri Dec 09, 2005 9:00 pm


]]>
2005-12-09T15:24:08+00:00 http://www.bigroadblues.com/forum/viewtopic.php?t=839&p=8402#p8402 <![CDATA[RE: Effect of cold on tubes/valves]]>

"A cheerful heart is good medicine."

Statistics: Posted by ricochet — Fri Dec 09, 2005 3:24 pm


]]>