Just wondering how receiving tubes stand the test of time when stored.
I have read that larger glass envelope transmitting tubes (3-500) can loose vacuum
when un-used for long periods of time and am wondering if the same is true of smaller
tubes. I had layed in a supply of replacement NOS tubes for my B-line but have never needed any.
Just kinda wondering if they are losing spunk on the shelf like I sometimes feel I am ! !
Jim N5KY
