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glennn111
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« on: September 12, 2011, 11:33:10 AM » |
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I have seen on various sites, replacement bases for both octal and 4 pin tubes. I have a pretty good idea of how to do the replacement having made a octal power cable before. But what type of cement is used for a tube? Any other tricks or advice would always be appreciated as well.
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Glenn Sales
Foreplay III (6SN7GTB), last run Paramour I (45 and 76 tubes)
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2wo
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« Reply #1 on: September 12, 2011, 08:32:12 PM » |
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RTV works pretty well...John
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John Scanlon
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glennn111
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« Reply #2 on: September 13, 2011, 10:02:19 AM » |
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Thanks John. That's a pretty straight forward answer. I was somehow expecting some exotic potion, but RTV seems pretty obvious.
Thanks again.
Glenn
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Glenn Sales
Foreplay III (6SN7GTB), last run Paramour I (45 and 76 tubes)
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jrebman
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« Reply #3 on: September 13, 2011, 05:56:11 PM » |
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Also, I think tube monger, Antique Electronics Supply, and thetubestore.com sell base cement, though the RTV should be fine too.
-- Jim
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Jim Rebman
Alix linux box --> HRT MusicStreamer II+ --> Crack --> Sennheiser HD-600s.
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Grainger49
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« Reply #4 on: September 14, 2011, 02:09:45 AM » |
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There are many versions of RTV out there now. You will want one that withstands heat. In the beginning all were high temp, but not today.
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Grainger Morrison,
Mozzie quote: Sacred cows make the best hamburgers!
Remember, YOU are the only one who needs to be happy with the sound of your system.
Eros (Mods Have Begun!)/FP-2/Paramour 1/upgrades to all - PS Audio Regenerator, Triangle Zerius Speakers, BA Sub
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coca
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« Reply #5 on: September 14, 2011, 08:49:22 AM » |
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The Rtv that is sold at automotive supply stores is meant for high temp. application.
Bernie.
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glennn111
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« Reply #6 on: September 14, 2011, 03:25:15 PM » |
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Thanks to all for your input. I think I will go with the RTV (high temp). Availability being the main factor, but also I think it should work quit well.
Thanks again.
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Glenn Sales
Foreplay III (6SN7GTB), last run Paramour I (45 and 76 tubes)
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John Roman
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« Reply #7 on: September 18, 2011, 05:27:07 AM » |
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Perhaps a dumb question here, but can you actually replace the base without compromising the vacuum?
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Regards,
John
Extended Foreplay 3 / 300B Paramount's / BassZilla open baffle / Thiel CS 1.6/ Velodyne HGS-10 / Music Streamer 2 / Lenovo Y560-Win7-Pandora-Foobar 2000
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jrebman
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« Reply #8 on: September 18, 2011, 09:34:16 AM » |
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John,
Yes, in octal tubes and others with bases, the connections to the internal structures are done via flexible leads that have the glass sealed around them, and then the base is attached with the leads pulled through the pins in the base, soldered in place to the pins, and then the base glued to the glass.
HTH,
Jim
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Jim Rebman
Alix linux box --> HRT MusicStreamer II+ --> Crack --> Sennheiser HD-600s.
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