100W Ultimate Fidelity Amplifier

[aliskamjad]

P30 schematic is at post 4474. Pdf at 7816. Gerbers at post 7801.

Thanks a lot.

 

[apexaudio]

NX12

 

[sonal kunal]

Miles, there is error in schematic could you post corrected one.

 

[AndrewT]

Another untestedundeveloped proposal, intended to use the Members as guinea pigs ?

 

[prasi]

Another untestedundeveloped proposal, intended to use the Members as guinea pigs ?

😀😀 I think not, everyone makes mistakes in drawing, especially if isn't checked by some second person.
Not all ckts posted by Apex are meant for guinea pigs( no way), e.g.Apex Super Gainclone, works perfect....
There are quite a few examples...

 

[apexaudio]

Miles, there is error in schematic could you post corrected one.

Here it is.

 

[I love the sound]

Here it is.

+- 60V for nx12??

 

[44250]

Another untestedundeveloped proposal, intended to use the Members as guinea pigs ?

why don't you propose something that you think it works? think about what you write before you write it down. let us decide on our own are we pigs or not. thank you for your contribution.

 

[AndrewT]

Because I know my limitations.
I do not try to kid myself on that I could be an amplifier designer.

 

[44250]

good for you,enjoy it!

 

[apexaudio]

+- 60V for nx12??

Yes

 

[sonal kunal]

Layout for NX12.

 

[prasi]

Layout for NX12.

very nice , hats off!

 

[thimios]

Agree,very well done!

 

[apexaudio]

Layout for NX12.

Nice pcb but use final schematic from post #9731
Regards

 

[smartx21]

What would be the expected figures for this amp?

 

[xrk971]

Nice layout Sonal! This looks like a fun and easy build. Almost same profile as the FH9 board you did earlier. Could IRFP250 be replaced by 240 with no detriment to sound?

 

[sonal kunal]

Revised NX12 layout using final schematic from post #9731.

P.S. I deleted last post because of error in layout.

 

[apexaudio]

Revised NX12 layout using final schematic from post #9731.

P.S. I deleted last post because of error in layout.

Replace 15V zeners with 1N4148 and 3,6V 7,5V zeners...

 

[sonal kunal]

Replaced zeners with correct value and added 1N4148 on layout.