lhquam: Is there a learning by operating Teaser-6 in the Class A/B mode, and then quantifying its subjective and objective performance? Its bias controls are at your finger tips. I am insure why you [and others] chose Class A to begin with. Their was no deliberate mention or suggestion in the early posts to operate Conceptual F6 in Class A or Class A/B. Maybe influenced by the statement of Mr. Pass that he no longer listens to Class A/B amps!
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Oh, absolutely. We are spoiled for choices. All are exceedingly good, just have different flavors.
Zoran: Conceptual F6 is a wide open field of study. We know from the work and the builds of lhquam and buzzforb [and others] that it readily operates in Class A and sounds great too. But what about Class A/B operation [like you said above] used at large in the older generation Classics?
Zen Mod. I fully agree with you that I am not suggesting new hair-brain ideas. All I am saying is for lhquam and others to expand the scope of understanding and characterize the full potential of their Conceptual F6. We are still talking about the identical build; but with different operating conditions. Knowledge can only be bliss. All bets are that Mr. Pass operates his F6 in Class A. But; we know very little or nuttin' [as you put it] about it.
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ZM. Thank you for the schematic. On classic papyrus? The Thread "F6 Amplifier" is truly a wealth of information for DIYers to tap in for the ultimate in flexibility of their hobby. Like patents and other gizmos, new and improved amps are built on the shoulders of older ones.should I post blank paper , too .......
The challenge that I am undertaking is to Guess where Nelson is taking us. That means KISS (Keep It Simple, Stupid) and quality, which involves trade-offs. I suspect that Papa will show a circuit that is even simpler and better than mine shown in post #1647 http://www.diyaudio.com/forums/pass-labs/216616-f6-amplifier-165.html#post3159810.