How can do you extend the life of your tubes?


My amp premp and cdp are tubes. I read years ago, proportionatley, the most tube wears comes from powering up. And shutting down, and then powering up shortly is life shortener for sure. Shortly is too vauge. What do you tubers do to lenghten the life of your tubes, especially when we're talkng NOS and the like? thanks in advance.
128x128warrenh

Showing 1 response by markpao

Ghosthouse,
My Hickok 539C does have provisions for a "Life Test". This setting reduces the filament voltage by 10%. In this setting the mutual conductance is not supposed to drop more than 20% compared to the "normal" setting.
I'm no expert here, and can't confirm the accuracy, but it sounds like this is what you're looking for in a tester.