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In Reply to: RE: Maximum Output posted by Tre' on January 27, 2015 at 13:24:53
....Paul Joppa has a quick rule of thumb that works really well. Load impedance, for a reasonable amount of output power keeping the harmonic distortion reasonably low, = (voltage / current) - (2.38 * the plate resistance)....Interesting, you are saying that with higher Ia and higher Rp the ER300b should be loaded with about 2k ? Whould it reduce output power even more ?
Edits: 01/27/15 01/27/15Follow Ups:
I would have to know more about the ER300b.
How did you get 2K?
Do you know the plate resistance for the ER300b?
When you're dealing with a SET amp (unless your taking about transmitting tubes) power should not be your concern. You should have high sensitive speakers that don't need any real power. The sound (really low upper ordered harmonic distortion) should be your only concern.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
"little less power then the traditional 300B"Where did you read that?
The site I read says it matches the WE 300b
"Conforms to all specifications and tube curves of the Original Western Electric 300B tubes."
Is there a website with complete information?
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 01/27/15
There are a few inconsistencies in the trueaudiophile notes; it's a very new tube so give them some time to fix errors and typos.
At VinylSavor
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Have Fun and Enjoy the Music
"Still Working the Problem"
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