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Re: Under-Biasing Output Tubes [message #71711 is a reply to message #71706]

Fri, 09 March 2012 17:39

SteveBrown
Messages: 330
Registered: May 2009

Grand Master

Given the numbers here, I don't know the value of the resistor you're measuring the voltage across, but I'd guess we're talking about the difference of a few mils. Personally, I wouldn't sweat it, try it and listen. I've heard that many prefer their EL34's biased nearer to 35 to 40ma on Dyna ST-70's. You could also post this on the DIY Hi-Fi Supply forum, if you have not already, to see what others who own the amp might suggest.

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[Message index]

		Under-Biasing Output Tubes By: AudioFred on Fri, 09 March 2012 08:04
		Re: Under-Biasing Output Tubes By: Wayne Parham on Fri, 09 March 2012 09:39
		Re: Under-Biasing Output Tubes By: SteveBrown on Fri, 09 March 2012 17:39
		Re: Under-Biasing Output Tubes By: Thermionic on Sun, 11 March 2012 01:31
		Re: Under-Biasing Output Tubes By: AudioFred on Mon, 12 March 2012 04:59
		Re: Under-Biasing Output Tubes By: gofar99 on Wed, 14 March 2012 13:40
		Re: Under-Biasing Output Tubes By: SASAudioLabs on Thu, 22 March 2012 14:30
		Ella with EL34's By: spkrman57 on Sun, 22 July 2012 12:48

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