OK , considering it's typo , there is still hope to become .......... one thinking in engineering way
(perfectly OK with me , considering that I'm also never going to became one
)
you got the recipe how to cure output offset , now just find proper value for adequate resistor position
keep it up to 30mV , either pos. or neg.
(perfectly OK with me , considering that I'm also never going to became one
)you got the recipe how to cure output offset , now just find proper value for adequate resistor position
keep it up to 30mV , either pos. or neg.
I build my M2 with dual mono too and I had the opportunity to compare it with an original from late permaneder and it was clear that this is a way to have much more power in the bass.
dunno really
I set it by ear ; as you can see from pictures of my setup, it's pretty unique , so no much use of pre-thinking
I set it by ear ; as you can see from pictures of my setup, it's pretty unique , so no much use of pre-thinking
Try this: Qes(new) = Qes * ((2R35 + Re) / Re)
Qts calculated normal way with Qes(new) // Qms
I have not been able to tear myself away from this amplifier long enough to do any A/B comparisons but I do want to say something about this amp. I have built 4 of the Firstwatt clones and I am loving this amp like none of the rest. This is one seriously good amp. Last year I also built 3 SET's and one Pentode amp but as I have said I cannot take time away from listening to it to do any comparisons.
It may be that I love the sound of an SET with my speakers. If you like the SET sound this amp will appeal to you.
It may be that I love the sound of an SET with my speakers. If you like the SET sound this amp will appeal to you.
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Well, what did you expect?
...what has ZM being telling us for so long?
..you see he, the mighty one, is correct in his advice....now and zen.
But being an unofficial adopted son he was one of lucky few that were able to build this amp until now. The rest of us had to wait years to see the schematic or be fortunate to have the funds to buy a commercially built one. I agree that it is hard for me to understand how Nelson could discontinue production of this amp. I bow again to his generosity.
Agreed. It's a wonderful gift to the diy community. I wonder if Papa's
discontinuing it simply because he doesn't have enough time to build
it anymore.
Dennis
My first was an Aleph 30, then I built a SE BA3, then the F6 and now the M2. All are exceptional amps but all have there own unique sound.
Hmmm, does it matter how the trafo is turned?
Watching this post http://www.diyaudio.com/forums/pass-labs/281520-official-m2-schematic-49.html#post4578853
it doesn´t matter or?
Watching this post http://www.diyaudio.com/forums/pass-labs/281520-official-m2-schematic-49.html#post4578853
it doesn´t matter or?
you got it wrong
it's pretty much important how trafo is turned
in fact , due to pinout , you can't mount it in wrong way
it's pretty much important how trafo is turned
in fact , due to pinout , you can't mount it in wrong way
Two pins are closer together than the rest and also instructions on which pin is #1 comes with the transformers in cause you point to point build.
