Aleph J Schematic

[GRollins]

It will run either way. I'd put the feedback on the other side of the output resistors, which I gather is what Nelson is actually doing.

Grey

 

[Zen Mod]

Can Nelson's Schematic be used as is or is the feedback incorrect?

Thanks,

Vince

Papa sez that you can use it in both ways

 

[Nelson Pass]

Just for the record, I have posted the correct schematic

www.passlabs.com/np/Aleph_J_sch.pdf

 

[vdi_nenna]

Thank you! You are all gentlemen and scholars in my book.

Vince

 

[Blues]

Yes, it seems easy to modify the original Aleph circuit but I can't find 2sj109bl.


Where do you buy your 2sj109bl?

I'm going to use matched 2SJ74BLs...I have a pair of 109s from Steen but those fragile little critters won't handle my supercharged output...they'll be put to good use on a straight-up AJ someday.

 

[Blues]

...was purely arbitrary.

...to do things arbitrarily, knowing to get away with it.

BTW, the question was also purely arbitrary... (IOW, random stupidity on my part)

 

[EUVL]

> those fragile little critters won't handle my supercharged output

What makes you think that 2SJ74 is any different ?

Patrick

 

[Blues]

Because I can easily parallel them...tell me why they're not. That's not to say you can't parallel 109s but for me who handraws my circuit boards...it's more difficult. If I design a ckt board would etch one for me?

 

[carpenter]

Blues, I think you're doing just fine. Keep up the good work!

 

[EUVL]

> That's not to say you can't parallel 109s

Exactly.

> but for me who handraws my circuit boards...it's more difficult.

one can of course solder one 109 on top and 1 on the bottom of any PCB without changing the layout.


Patrick

 

[Zen Mod]

...............

one can of course solder one 109 on top and 1 on the bottom of any PCB without changing the layout.


Patrick

I remember that I saw that on one of numerous japanese constructions ...........

just one thing to add , regarding solo vs. dual thingies ........ besides my past troubles to find 2SJ109BL in any decent quantity , and that they not cost arm and leg ........ I have one more thing pretty important - I still need some money for da toobz .........
ya remember that they have more legs than these 3 or 7 legged fuses

just my opinion and xperience .........

good enough to became universal truth

 

[EUVL]

> good enough to became universal truth

Does that not promote your status to God ?


Patrick

 

[Zen Mod]

> good enough to became universal truth

Does that not promote your status to God ?


Patrick

if you say so ;

but not God , just Saint Alexander of Batsch .

with or without smiley ;

we must be serious all the time ?

 

[Blues]

[B ...one can of course solder one 109 on top and 1 on the bottom of any PCB without changing the layout.


Patrick [/B]

I have a hard time accepting EUVL to even think of doing that...

My requirements require more than just 2 diff pairs in parallel...please don't ask why as I know you know why.

St. Alex, please no OT!

 

[Manu]

Saint Alexandr :
why not God? Come on, don't be modest. Life is too short.

Emmanuel ("God with us")
Sorry for OT.

 

[jacco vermeulen]

Maybe the Saint can explain why the amp will stampede if R27 is removed instead of becoming an alternating flashlight ?

(ZM, spread 'm to let me size you)

 

[Zen Mod]

Maybe the Saint can explain why the amp will stampede if R27 is removed instead of becoming an alternating flashlight ?

(ZM, spread 'm to let me size you)

tell me that on plain Engrish , and then I can tell ya why is C2 there



crazy dutchie talks to crazy serbie...

mess again

 

[jacco vermeulen]

10-4, i missed the supercharger, the problemo with us heathens is that we look down on a schematic, never up.

As the Coën Bros before editing made Cedric "Gus Petch" say in Intolerable Cruelty : Messiah, I'm gonna nail your azz.

 

[Zen Mod]

10-4, i missed the supercharger, the problemo with us heathens is that we look down on a schematic, never up.

As the Coën Bros before editing made Cedric "Gus Petch" say in Intolerable Cruelty : Messiah, I'm gonna nail your azz.

well , next time you find time between two finger poking in da dike and try to read da thread ;

it's easy drekin' poor serbie

http://www.diyaudio.com/forums/showthread.php?postid=1342059#post1342059

 

[jacco vermeulen]

The Master is so busy with reading physical stuff and camouflage architecturals, he should have a master's voice to do the drawing labor.

(usually me has finger in my ear to stop the cheese flow, why you think i'm into boats)