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Re: Fixed Bias v. Cathode Bias [message #9069 is a reply to message #9067]

Sun, 17 July 2005 15:14

Forty2wo
Messages: 163
Registered: May 2009

Master

Wayne is right. What I mean by deep is higher standing current. How much will depend on your speakers and how much power you need.
In my case I have a pair of Bottlehead Straight 8’s, at 96-97 dB efficient, so 1 or 2 Watts goes a long way. I don’t need to run the current very high to stay in class A.
As a rule start with low current and gradually increase it till you are happy. If you are after Max power again run as low as sounds good. The more current the more the 2 tubes overlap (more class A less overall Power) . Plus more current = more heat and less tube life…John

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[Message index]

		Fixed Bias v. Cathode Bias By: Manualblock on Sat, 16 July 2005 13:43
		Re: Fixed Bias v. Cathode Bias By: Forty2wo on Sat, 16 July 2005 19:46
		Re: Fixed Bias v. Cathode Bias By: Thermionic on Sat, 16 July 2005 21:25
		Re: Fixed Bias v. Cathode Bias By: Manualblock on Sun, 17 July 2005 09:16
		Re: Fixed Bias v. Cathode Bias By: Forty2wo on Sun, 17 July 2005 16:08
		Re: Fixed Bias v. Cathode Bias By: Manualblock on Sun, 17 July 2005 16:09
		Re: Fixed Bias v. Cathode Bias By: Forty2wo on Sun, 17 July 2005 16:27
		Re: Fixed Bias v. Cathode Bias By: Manualblock on Sun, 17 July 2005 17:48
		Re: Fixed Bias v. Cathode Bias By: Wayne Parham on Sun, 17 July 2005 18:44
		Re: Fixed Bias v. Cathode Bias By: Manualblock on Sun, 17 July 2005 20:01
		Re: Fixed Bias v. Cathode Bias By: Thermionic on Sun, 17 July 2005 20:52
		Re: Fixed Bias v. Cathode Bias By: Manualblock on Mon, 18 July 2005 06:54
		Re: Fixed Bias v. Cathode Bias By: Thermionic on Mon, 18 July 2005 09:34
		Tube basics By: Forty2wo on Mon, 18 July 2005 11:51
		Re: Tube basics By: Manualblock on Mon, 18 July 2005 13:19
		Re: Fixed Bias v. Cathode Bias By: Wayne Parham on Mon, 18 July 2005 05:43
		Re: Fixed Bias v. Cathode Bias By: Manualblock on Sun, 17 July 2005 09:11
		Re: Fixed Bias v. Cathode Bias By: Wayne Parham on Sun, 17 July 2005 11:31
		Re: Fixed Bias v. Cathode Bias By: Manualblock on Sun, 17 July 2005 11:55
		Re: Fixed Bias v. Cathode Bias By: Forty2wo on Sun, 17 July 2005 15:14
		Re: Fixed Bias v. Cathode Bias By: Manualblock on Sun, 17 July 2005 16:08

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