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Google "bias probe."
Agree, the temperature revealing paint use on Groove Tube labels and some others is an indicator the tubes have been baking. Overheated tubes often show visual signs.
COntext is everything. Cold is not the same as cooler than...
Red hot and too cold to sound like anything are not the only options. We can come up with scenarios that result in some bad outcome, but the point was that no tube company or amp company is looking to have short tube life to increase tube sales.
One of Peavey's most popular amps has been the 5150/6505 and 5150-2/6505+, and the power tubes in those typically
run at about 14ma. Not too many people have complained how terrible the amps sound. Oh sure, some people modify the amp and like it even better when they can run it hotter, not all care, but either way, it sounded good enough to buy in that stock condition. They have been making that same amp for 20 years now.
Agree, the temperature revealing paint use on Groove Tube labels and some others is an indicator the tubes have been baking. Overheated tubes often show visual signs.
Enzo, if they recommend cold bias, their tubes could gain (undeserved) reputation of sounding bad, that's maybe as bad as "short lived"?
Red hot and too cold to sound like anything are not the only options. We can come up with scenarios that result in some bad outcome, but the point was that no tube company or amp company is looking to have short tube life to increase tube sales.
One of Peavey's most popular amps has been the 5150/6505 and 5150-2/6505+, and the power tubes in those typically
run at about 14ma. Not too many people have complained how terrible the amps sound. Oh sure, some people modify the amp and like it even better when they can run it hotter, not all care, but either way, it sounded good enough to buy in that stock condition. They have been making that same amp for 20 years now.
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