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Old 10th July 2008, 02:15 PM   #1
56oval is offline 56oval  Australia
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Default Tube sockets

Hello Diyaudio.
I'm at the stage of buying tube sockets ,I have tried some generic ceramic types and have trouble with the centre rivot coming loose or the contacts not grabing the pins tight enough
and I'm very careful how much heat I use when soldering .Also
a friend has tried the Teflons and didn't really notice any improvement and how much does the base metal add to the sound .
Has anyone tried the QQQ sold by Angela or Parts connexion
So what would you guys recommend .
In all I need 4 to suit 300B's ,12 to suit 6SN7's ,4 nine pins .

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Old 10th July 2008, 05:39 PM   #2
SY is offline SY  United States
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I'm not confident about the long-term mechanical integrity of Teflon sockets, so I tend to avoid them. Ceramic is the material of choice.

Tight connection to the pins is the most essential element. Even if one is a True Believer that different metals impart different sounds to the current flowing through them, it's unlikely that the metal in the socket will have much effect, given the materials used to move current in and out of the tube's electrodes.
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
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Old 10th July 2008, 05:53 PM   #3
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given the materials used to move current in and out of the tube's electrodes
Which makes one wonder why people obsess over using solid silver wire coated in gold for short internal connections or special silver alloy connections on hand made teflon sockets (obviously these all have to be hand made by an old guy in japan or they are worthless).

Never had a problem with ceramic or teflon sockets. Maybe OP got a bad batch or something. If they were bought from a retailer send them back and get new ones. If you bought them off ebay...well you learned your lesson.
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Old 10th July 2008, 07:00 PM   #4
kevinkr is offline kevinkr  United States
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Never had any issues with teflon sockets either - something over two dozen used (yamamoto brand) as long as 10 yrs ago. Octal and UX-4 types primarily.

I've recently purchased less expensive Chinese made UX-4 sockets which look nicely made. Have yet to use them.

Flow should be slow enough that I will be dead by the time it is an issue..
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
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Old 10th July 2008, 07:54 PM   #5
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Whatever you do, avoid the Chinese ceramic Johnson UX4 copies. The rivets get loose really easily, and the tensioner on the contacts fall apart pretty quickly (this goes for all the other similar sockets available). If you have to use that type, add some adhesive over the rivets (like Johnson did back in the day).

The nicer sockets from Parts Connexion should work quite well for you.
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Old 10th July 2008, 08:01 PM   #6
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The nicest affordable UX4 sockets I've seen were from Rod Burman. White and made from some thick plastic material.

He has a lot of interesting things, in fact, and he's in the UK.
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Old 10th July 2008, 09:19 PM   #7
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oh speaking of teflon sockets where would be a good source of them (especially the 7 pin septar sockets)? My flea market source has dried up.
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Old 11th July 2008, 02:39 AM   #8
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Antique Electronics Supply has a very large inventory of sockets with a fairly wide price range.
"No man really becomes a fool until he stops asking questions" - Charles Proteus Steinmetz
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Old 11th July 2008, 02:43 AM   #9
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Ceramic is the material of choice.
zhang sheng sell a lot of those.....<> email him, he can help you...
planet10 needs your help: Let's help Ruth and Dave...[B
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Old 11th July 2008, 02:57 AM   #10
JandG is offline JandG  United States
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I have used well over 100 of the Chinese Johnson copies & some do have loose rivets, slightly. & only one let a clamp go only from me bending the solder pin tabs completely 90 degree's. This would be UX-4-5-7 & they grip like crazy.
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