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Do tubes run any hotter at high volumes?

69.54.140.105

Posted on April 27, 2017 at 18:08:29

jaydacus

I know SS amps run way hotter when played loudly. Always wondered if the same applied to tube amplifiers. I guess I could answer my own question if I had a laser temperature gun. Maybe an excuse to rock out and then dig out yours?

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RE: Do tubes run any hotter at high volumes?

Audio Pete

13:23:31 05/25/17

Class A actually can run cooler at full output

Chip647

20:45:14 04/27/17

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RE: Do tubes run any hotter at high volumes?

Audio Pete

13:23:31 05/25/17

Class A actually can run cooler at full output

Chip647

20:45:14 04/27/17

Class A actually can run cooler at full output, posted on April 27, 2017 at 20:45:14
Chip647 Audiophile Posts: 2653 Location: The South Joined: December 24, 2012	Class AB or B run hotter at full output

RE: Do tubes run any hotter at high volumes?, posted on May 25, 2017 at 13:23:31

Audio Pete
Manufacturer

Posts: 152
Location: Long Island,NY
Joined: May 22, 2015

Sure they do. The more you ask from them, the more electrons flow and hit the plates, thus making them hotter. That's why git. amps. that are run very hard need retubing more than a HiFi amp that's not normally pushed to saturation. Now I'm talking about Class AB1 amps, Class A amps actually run cooler the harder you drive them because some of the power previously wasted on the plates, are being routed to the load (speaker).

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