From the earliest days, vacuum tubes in many guitar amps have been placed upside down in the chassis,( Fender being a classic example) with a few exceptions one being Marshall. I dont know if this design or feature was unavoidable but one thing is clear..heat rises and that heat degrades, or can degrade, other components in the amp. Agreed ? An example is where you see maybe 7 bottles at the back inc rectifier tube, in a 50 or 100 watt amp, that is a lot of heat. The other thing I see in smaller combos is the power tubes placed too close to the back of the speaker ..unacceptable, and this coming from famous brand names.
These things have been mentioned elsewhere, I don't know why amp makers don't use tube coolers/ dampers on tubes in their amps more often
These things have been mentioned elsewhere, I don't know why amp makers don't use tube coolers/ dampers on tubes in their amps more often
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