F6 Amplifier

Here is a simulation of the Zen Pot with Rs=0R47, and the top-cap connected to the source pin of the top FET. Rswip2 is the wiper position of the Zen Pot which is across the bottom source resistor. As you can see, the distortion levels go above 1% with Rswip2>0.35.

(non)degeneration , while having Zen Amount pot on lower one

then put pot on front plate , and write SIT 1 wannabe

;)[/QUOTE]
 

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Official Court Jester
Joined 2003
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btw - if one is keen to have Zen Amount pot , it's better to have it in form of switch(ing attenuator)

resistor net is more than easy to calculate ,even in case of congesting it in some central area of setting

that way symmetry between channels is easier to mantain

say that 2-section/12-position Lorlin is good for 2 channels in same case

or whatever combination
An externally hosted image should be here but it was not working when we last tested it.
 
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Yeah, that would work. What about a rotary switch connecting an array of trimmer pots? That way you could a have a number of "distortion profiles" corresponding to how the pots are adjusted.

Another idea is a 10 turn pot with this kind of adjusting knob, which allows settings to be repeatably "dialed-in".

btw - if one is keen to have Zen Amount pot , it's better to have it in form of switch(ing attenuator)

resistor net is more than easy to calculate ,even in case of congesting it in some central area of setting

that way symmetry between channels is easier to mantain

say that 2-section/12-position Lorlin is good for 2 channels in same case

or whatever combination
 

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let's be serious :clown:

next step would be relay matrix plus microproc , display showing : Marshall tone , Carver tone , Mesa Boogie tone , ML tone , Dynaco tone , Halcro tone , AR tone , Carry tone , McIntosh tone .......ZM tone..lhquam tone ..buzzforb tone... most probably the tone is specific and sensistive to the loudspeaker in use.


:devily:
lhquam: maybe try another set of loudspeakers; buzzforb has this luxury.
 
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