There are "classes" of transformers. Previously were used letters to classify overheating, now numbers are more informative.
Why are Transformer Insulation System Ratings Important? - MCI Transformer Corporation - MCI Transformer Corporation
When installed near tubes, you should reduce power allowed to dissipate by transformers, or prevent heating of them by tubes. In my amps I use vented enclosures for transformers, and put stainless steel reflectors between hot toobs and them.
Why are Transformer Insulation System Ratings Important? - MCI Transformer Corporation - MCI Transformer Corporation
When installed near tubes, you should reduce power allowed to dissipate by transformers, or prevent heating of them by tubes. In my amps I use vented enclosures for transformers, and put stainless steel reflectors between hot toobs and them.
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If you amp runs in class A and the transformer cooling is influenced by the tubes it is possible
An amp being discussed today is Class A until about 4w per channel, then switches to AB as it continues to around 250w. I expect any amp that makes a switch like this, could consume a little more before the crossover, than it does immediately after.
Maybe? I dunno. Non contact thermometers are getting so cheap that everyone could have one now though.
Maybe? I dunno. Non contact thermometers are getting so cheap that everyone could have one now though.
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This applies when temp > about 70C (very VERY hot to the touch), according to a chemist/materials guru I have at work. Below that the lifetime/temp is not as rapid.
(The 10degree/half-life rule of thumb is still used tho b/c of it's simplicity, gives an idea of heat/lifespan, and is still tought to military techs, u know the young, dumb, and full of guts&glory types)
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