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In Reply to: RE: what do you do when the tubes WILL NOT FIT IN THE SOCKET posted by mbnx01 on June 30, 2015 at 17:43:00
if you would tell us which amp and which tubes.
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Buy Chinese. Bury freedom.
Follow Ups:
CIFTE NOS 12AU7's and a Rogue Hydra.
I've ordered some deoxit cleaner/lube to put on the pins.
"A lie is half-way around the world before the truth can get its boots on."
-Mark Twain
Deoxit isn't made for conductive parts that operate at these temperatures. The lubricating film will bake onto the pins. Try the pin straightener before you do this. If that doesn't do the trick, the sockets may be out of spec.
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Buy Chinese. Bury freedom.
DeOxit D5 is good for 200 C (392 F), the Gold G5 series is good for 240 C (464 F). Both work well on tube pins and help ease a tube into a new and tight socket
Jim, I respect those numbers. However, when it comes to lubricants drying out and forming a film, I believe it's not a matter of "if," but of "when." I have no empirical data on this specific to Deoxit, so I don't know the time frame involved. However, I would be very surprised if a tube used five or more years for several hours a day after being sprayed still had a liquid coating on its pins.
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Buy Chinese. Bury freedom.
For some reason it's taking a week to get here from ebay.
"A lie is half-way around the world before the truth can get its boots on."
-Mark Twain
I just replaced all my amp's 9 pin sockets. There were 8 in total. Had same insert problem. Pin straightener didn't help.
I experimented using a defective tube first to find out what kind of force I needed to get one in. Never experienced the amount of heft needed like this! And I've used this socket brand before.
Careful visual alignment along with rocking motion and then in they went.
Pin straightener still good place to start.
My thumb actually feels like it had quite a workout. The tension is such that I could probably lift up the amp by a couple of those tubes!
Anyways, rocking is the key and eventually you'll feel a couple pins slowly slide in. Be patient and keep rocking side to side front to back until tube bottoms out.
If I ever have to go through this again, I would probably cut all but 3 of a defective tube pins off, and use this as a kind of socket breaking in tool.
Luckily it wasn't solder that had run up the pins. But that would be pretty much impossible with these sockets.
All sockets were Belton. Tubes were Amperex, Sylvania (Yugoslavia), and GE. All 6dj8's except GE 12ax7.
Hope this helps.
Jonesy
"I know just enough to get into trouble. But not enough to get out of it."
Believe these are good to at least 200° C.
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