A Vacuum Tube Primer for why you "burn in" tubes

[High Miler]

The Do's,Dont's,and Whys of correct tube handling

 

[EDUK8TR]

Great Info :idea: :!:

thanks :!:

 

[nomadradio]

Here's some more food for thought, especially when buying "bargain" tubes that have been on the shelf for 15 or 20 years.

SM5BZ Reconditioning transmitter tubes.

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