2. amps-preamps
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what do you use to remove your tubes?

Happy Holidays! ! ! I want to pull my preamp and signal tubes (12AU7's and 12AX7's) to see what brand they are. They only stick out of my Rogue Cronus Magnum about 3/4 of an inch. Do I have to use cotton gloves / towel or could I use latex gloves? I'm thinking I could get a better grip with latex gloves. Once I know what they are, I would like to post a thread on what other tubes people are using in their Cronus Magnums and what effects they are having on the sound.
donjr
magfan
1,583 posts
 
If you worry, wipe down with some Iso alcohol after install. don't drip or soak it. damp lint free cloth will be ok. Handle with latex or vinyl clean-room style gloves. Make sure any vapors have evaporated before starting equipment.

Finger oils are generally bad for thin glass envelops, hotter=worser.

I've changed hundreds of hi pressure mercury vapor lamps in semiconductor processing equipment by this means.
myles_b_astor's avatar
myles_b_astor
134 posts
 
Worrying about how to remove the tubes seems kind of silly after seeing how they are made and packed :)

http://www.mullardtubes.com/Video.aspx

That said either use cotton gloves or some cat grooming gloves with little rubber dots. If nothing else, want to be careful not removing the logo from the tube.

Myles
larryi
4,089 posts
 
As explained above, there is no operational reason for worrying about handling tubes. My only possible concern would be the easy to rub off markings on extremely rare Telefunken tubes. When my ECC803S tubes are near the end of their life, how will I be able to sell them on ebay as brand new if I am not careful about rubbing off the markings on the tube?
jea48
4,486 posts
 
Donjr,

Curiosity killed the cat, did you pull the tubes? Did you have any problem putting them back in?

Beats me why a manufacture would recess a tube in a well.... http://www.uptownaudio.com/rogue/Titan.htm

Looks like the best way to pull the tubes would be with Chinese handcuffs, LOL.....
cajunpepe
255 posts
 
my hands.
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