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http://html.alldatasheet.com/html-pdf/30139/TOSHIBA/2SC2879/246/1/2SC2879.html
The data sheet say that it's power output is 100 watts pep. Which has nothing to do with the collector dissipation. The package design for the transistor could be capable of 250 watts of power dissipation, that does not mean the transistor can do that and remain functional. I noticed some one compared them to top fuel dragster engines.which are rebuilt after every single run. That's a pretty good analogy. You might get 125 watts pep, but that is not an RMS dead key carrier.
There was a figure that was used by shady marketing groups that exaggerated power output claims and it was called IPP watts. That stood for Instantaneous Peak Power. Reading those figures you would think you had the most powerful boom box in the world.

<blockquote data-quote="Tallman" data-source="post: 676371" data-attributes="member: 32129"><a href="http://html.alldatasheet.com/html-pdf/30139/TOSHIBA/2SC2879/246/1/2SC2879.html" target="_blank">http://html.alldatasheet.com/html-pdf/30139/TOSHIBA/2SC2879/246/1/2SC2879.html</a>The data sheet say that it&#039;s power output is 100 watts pep. Which has nothing to do with the collector dissipation. The package design for the transistor could be capable of 250 watts of power dissipation, that does not mean the transistor can do that and remain functional. I noticed some one compared them to top fuel dragster engines.which are rebuilt after every single run. That&#039;s a pretty good analogy. You might get 125 watts pep, but that is not an RMS dead key carrier.There was a figure that was used by shady marketing groups that exaggerated power output claims and it was called IPP watts. That stood for Instantaneous Peak Power. Reading those figures you would think you had the most powerful boom box in the world.</blockquote>

[QUOTE="Tallman, post: 676371, member: 32129"] [URL]http://html.alldatasheet.com/html-pdf/30139/TOSHIBA/2SC2879/246/1/2SC2879.html[/URL] The data sheet say that it's power output is 100 watts pep. Which has nothing to do with the collector dissipation. The package design for the transistor could be capable of 250 watts of power dissipation, that does not mean the transistor can do that and remain functional. I noticed some one compared them to top fuel dragster engines.which are rebuilt after every single run. That's a pretty good analogy. You might get 125 watts pep, but that is not an RMS dead key carrier. There was a figure that was used by shady marketing groups that exaggerated power output claims and it was called IPP watts. That stood for Instantaneous Peak Power. Reading those figures you would think you had the most powerful boom box in the world. [/QUOTE]

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