Actually Bob, there is this very interesting US5343166 patent by Papa Pass which cite US4115739 that potentially surpass any ouput stage using lowly IRFP240/9240 pair. I currently put everything else on hold in favor of exploring this....However after Sissy I will wait for the Fish XA25 ...
Actually Bob, there is this very interesting US5343166 patent by Papa Pass which cite US4115739 that potentially surpass any ouput stage using lowly IRFP240/9240 pair. I currently put everything else on hold in favor of exploring this.
... When a pair of complementary mosfet is used as follower, the Miller stray caps are the ones to dominate. When cascoded there is no more Miller effect...
just to state - I have no intention to play with MOX values in output vertical , to invoke 2nd harmonic above 3rd ; I have what I intended with poor man's iteration and that's it
I enjoyed listening all- IRFP iteration more than 6 hrs today ....... typical (part of) long term test, listening while working
finishing my own SissySIT , so pleasure was ..... quadrupled
what can I say , without straining in FiFi vocabulary ....... let's say it as - didn't found sole thing to complain
details , dynamics .... and bass is super-layered ....