I have a question to throw out to the forum. When a preamp is in "standby mode" is the rate of tube decay the same as full use of the unit? I am trying to determine when best to retube my BAT VK 31 SE. Any other BAT owners with some input?
Different pre tubes have different life. 12ax7's are perhaps the shortest lived of the popular bunch, 2000-5000 hours. 6dj8's can run up to 10,000 hours. The rest should fall in between. I'm sure that the better the tube, the longer the life.
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