How to remove tubes

1. How do you break in new tubes?
2. How often do you have to replace tubes in an amp?
3. Can you touch vacuum tubes?

How do you break in new tubes?

In the past I used to break in tubes in a relatively fast way by leaving the Phono preamp on for 2 or 3 hours and then off for an hour to let them cool down and then on again for another two or three hours and start again during the whole day, taking note the amount of hours the tubes have been actually working, ...

How often do you have to replace tubes in an amp?

You can expect a conventional amplifier tube to have a service life ranging up to 10,000 hours. Tubes with military specifications are built to last up to 100,000 hours.

Can you touch vacuum tubes?

It is OK to handle ambient cooled vacuum tubes with bare hands, IF THEY ARE COOL, and skin oils will seldom cause a problem, even if it chars.