ZV7-T (transformer)

[Zen Mod]

it depends which schmtc exactly you're going to use

 

[stajo]

I was thinking on Fig 8 in this PDF
https://www.passdiy.com/pdf/zen-v7.pdf
But I'm highly bribable if you have any other suggestion. Just ordered a pair of 3000 VA toroid chokes with dual windings.

 

[stajo]

My options in an artistically drawn paint-picture

 

[Zen Mod]

I'm lazy to search for , but there is Magura's Big Donut amp(s) already made , same as few - why-wouldnt-this-work-right-from-the-paper sketches for -put-here-whatever-part-you-have ....... and let them bleed , all sketched by yours trully

gollumgollum

edit : even if nothing's wrong with that sissy variation by Mithrandir ....

 

[stajo]

This http://www.diyaudio.com/forums/pass-labs/169323-semisouth-donuts.html I found

PS. I see I putted a resistor to much on the gnd rail. Ot the gnd on the wrong side of it anyway.

 

[Zen Mod]

moi said - Donut

 

[stajo]

nothing's wrong with that sissy variation by Mithrandir ....

U know Im gonna need your help anyway so you better guide me to sumthing that is going to give you least trouble😀😀😀

 

[buzzforb]

 

[stajo]

😀

You guys are so helpful🙂

 

[Zen Mod]

Donut a' la overkill - Solid State - diyAudio.rs

 

[flg]

 

[stajo]

Donut a' la overkill - Solid State - diyAudio.rs

A truly impressing thread. More about the impressing metal then the chisel tho. Is this how you would design the circuit today?

What differs it, in layman terms, from the Zv7-T. What have you added, changed and why?

 

[Zen Mod]

A truly impressing thread. More about the impressing metal then the chisel tho. Is this how you would design the circuit today?
......

even if term "designing" is arguable when I'm in question , in this case was more redesigning ;

Magura sez - "see what's possible with my SUSY circ" , I said - "there is no SUSY in your circ", he said "you liar and cheating weasel " , I said "utatautata!" , he said " OK - draw , but only with parts I already have in drawer... don't want to chase those sissy parts you all are using "

these days I'm drawing circs in same way - using leftovers of my head , but lately using LTSpice for checking , instead of just gray cells and time on bench ; that way I upped functionality right from the paper , for few percents ...... circs are more and more complex ( trying to leave less and less active parts )

thought - search here for Semisouth Donuts thread ; there I drew few more circs , but I didn't check them in sim ( meaning on servo functionality )

 

[stajo]

Thanks Massa

Thats what I thought by getting a lic degree on reading those threads. I linked to the Semisouth Donuts thread a few posts back, havent plewed it yet tho.

I have practically none of the transistors at home, so I would need sumthing that is doable to make a Europe Mouser BOM on (ie preferably not outdated three legged critters etc).

Gonna eat the Semisouth thread to the coffee, then try out some BOMs

Two 3kVA doppfel-choky and ditto 300 VA 18+9 V is ordered now, so I better hang on to this😀

 

[Zen Mod]

yup

that's that thread

whatever - I drew schmtc in Eagle , so that's the reason why is so nice

it never came to bench , where I needed to confirm servo functionality

so - if ya wanna play - be my guest - and take all credits for your self

I can't promise that I'm going to try it , even only in sim - too much chores these days

so - make an amalgam of ZV7 , Magura's , and these two - it's simple

aha - I owe ya this answer - these days , tnx to bad influence , I'm somewhat more in thinking of SE

bad influence picture enclosed

 

[stajo]

Are those SJEP120R100 avaliable somewhere? Got no hits on fleebay

 

[Zen Mod]

Semisouth goes Dodo (thread)

send PM to Semisouthfan - he's guy having some ( info - his right to use SS as part of name is genuine )

count on 50-ish yank greenies for one ; thought - not so expensive , if used on (seeing) price of some toobz

 

[Zen Mod]

http://www.diyaudio.com/forums/pass-labs/229241-semisouth-boiler-room.html?highlight=semisouth

diyAudio - View Profile: Semisouthfan

 

[stajo]

Thanks Bro. I PMd him. Substitute would be IRFP240?

Not that I think its pricy, just a bit scary to build huge around parts thats gone dodo

 

[Zen Mod]

you can go with IRFP first , then substitute with SS Dodos

entire shebang is biased by central CCS , so no biggie - put whatever you want