Most Greedy Boy, of them all... or (there is no) DEFiSIT of Papa's Koans

I believe I'll squeeze them in (last) schmtc with 2SK180 , already posted here in thread ;

that will go on upcoming SEF/Babelfish M2 pcbs

two criteria are fulfilled :

- it is SIT , so fast as Sparrow's fart
- with that schematic , current distribution between parts is same Wakooo as in Papa's DEFiSIT - mosfet doing all the work , while SIT acting as error correction , or whatever correction ......... maybe Wakoo Correction :rofl:

only jumping in to help when mosfet is outa breath
 

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Tnx 🙂

Will finish measurements on Monday ;

as I said , need more oomph for amp input , to move it to full power ....... EMU1212 is not having enough swing as is

then will open separate thread , post latest schematic and call it done

then on to SEF amp , as soon I receive pcbs ........

:cheers:
 
just from habit - my fave Philips 1uF MKC , as bypass on C1 and C2 position

did I wrote that Papa sent all caps in bubblie ?
....... more precisely - all parts , except small metal films :hypno1:

I also changed C2 to (also) my fave (125C , so industrial?) ELNA 470uF/35V

Just bought some of the Philips 1uF MKC devices, but only found yellow axial versions. where can I locate those blue ones?

Russellc
 
Can you call this a DEFiSIT ?

Maybe we can brodean the usable SITs this way?
Please let me know why or why not this would work... 🙂🙂 I am a dumb builder..
 

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with present state of 2 cells (multitasking in several planes, besides just finished late lunch , so cells starved more than usual) , I should say - why not

be careful how to manage these two voltage sources , noiseless is a must

observe F6 for few tricks , combined with M2 and DEFiSIT , of course

few clever tricks also buried in Antoinel's threads
 
Sorry I typed with a tablet, almost asleep making typo. :hypno1:

I think the circuit can make a sound anyhow.. But is this the DEFiSIT, with those advantages that Nelson described? 😕

1. Single-ended sound with such harmonics
2. Doubled output due to push-pull
3. Increased damping

Cheers
 
well , it could be kind of "rearranging of standard" , as in Jazz music .....

however , without spending some time with simulations , I can't predict exact behavior of these wakoo combinations

if you go back , you'll see graphs I took from simulations , showing insane current distribution between active parts - up to the clipping , mosfet (lower part) is doing extra heavy work , while SIT is actually working against the mosfet ...... as sort of ( who knows , is it?) naturally born phenomena - error correction or what :rofl: ....... anti-error correction

anyway , with xformers involved , where gates aren't tied tightly as in DEFiSIT , I believe we will not have that sort of current distribution ......

so , I can't promise when I'm going to make that sim for you , being pretty ocupied with daily work and soon to have SEF/Babelfish M2 zero gen pcbs , on which I hope to implement also THF51-S beasties ........

maybe after that ......
 
homework #1

per tips from mighty uncle ZM.

Stolen legos from F6, Sony VFet part 1, Nelson's DEFiSIT....

Before I do dumb things with my tower, let me hear from you what can be wrong. 😕😕

Looking at F6 it seems Schade feedback seems possible, but it's beyond my head.(Opto coupler too)

But I once tried Schade feedback (know to me as partial feedback then) even to 300B triode and I remember it was good.
.
 

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well , it could be kind of "rearranging of standard" , as in Jazz music .....

however , without spending some time with simulations , I can't predict exact behavior of these wakoo combinations

if you go back , you'll see graphs I took from simulations , showing insane current distribution between active parts - up to the clipping , mosfet (lower part) is doing extra heavy work , while SIT is actually working against the mosfet ...... as sort of ( who knows , is it?) naturally born phenomena - error correction or what :rofl: ....... anti-error correction

anyway , with xformers involved , where gates aren't tied tightly as in DEFiSIT , I believe we will not have that sort of current distribution ......

so , I can't promise when I'm going to make that sim for you , being pretty ocupied with daily work and soon to have SEF/Babelfish M2 zero gen pcbs , on which I hope to implement also THF51-S beasties ........

maybe after that ......

You are not promising but you don't have to. I appreciate it enough!! 🙂

I have this Dual PSU 30V 3A CC CV and I think this is safe tool to try the circuit.

Cheers
 

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