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Re: Take a look at this page and tell me what you think. [message #27225 is a reply to message #27220]

Tue, 07 February 2006 06:32

Damir
Messages: 1005
Registered: May 2009

Illuminati (2nd Degree)

In principle, little lower "standing current" and anode/screen grid dissipation then maximum means longer life of the tube, especially in guitar amps and fixed bias.
But, many classic amps used EL84 that way (Pa max), VOX for example.
Personally, if output tubes life isn`t too short I wouldn`t mess with PCB modifications. Russian EL84 is solid sounding and relatively cheap.

Another modification can be enlarging of screen-grids resistors R24,25 to the 1kOhms value, especially if the amp is frequently overdriven.

http://www.londonpower.com/faq.htm

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[Message index]

		Okay tube gurus By: Leland Crooks on Sun, 05 February 2006 18:32
		No Gurus allowed! :-) By: Damir on Mon, 06 February 2006 06:51
		Re: No Gurus allowed! :-) By: Leland Crooks on Mon, 06 February 2006 09:26
		Take a look at this page and tell me what you think. By: Leland Crooks on Mon, 06 February 2006 20:08
		Re: Take a look at this page and tell me what you think. By: Damir on Tue, 07 February 2006 06:32
		Re: Take a look at this page and tell me what you think. By: Leland Crooks on Tue, 07 February 2006 07:19
		no gooorooo here By: PakProtector on Mon, 06 February 2006 19:11

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