balanced x-Preamp

[Orgonom]

This is a variation of my sym. Headphoneamp
sym. Headphone amp
used as preamp.
You could use it asym. and sym.
The output should be used balanced for best perfomance.
Not build yet, but should work.
Powerdissipation is 5W each channel. You must use
a regulated supply. Have fun.

Andreas

[Orgonom]

Here is it.

[Orgonom]

Seems that nobody is intrested in this design.
I will repost when prototyp is done.
Andreas

[loovet]

I do find your schematic interesting.

How about this PCB layout?

/loovet

[Orgonom]

Hi loovet,
couldn´t download your file.
Andreas

[loovet]

Originally posted by Orgonom
Hi loovet,
couldn´t download your file.
Andreas

I can see that the file have been downloade at least 9 times.

Any one else who got the same problem?

If you still can't download the file i can e-mail you.

/loovet

[Orgonom]

I got it. Thanks for your work.
But could get it only with MS Explorer and not with NS 4.7 !???

To your PCB:
Take a look at my headphoneamp from the other tread. I put the mosfets back to back. Guess why?
Andreas

[loovet]

Originally posted by Orgonom
I got it. Thanks for your work.
But could get it only with MS Explorer and not with NS 4.7 !???

To your PCB:
Take a look at my headphoneamp from the other tread. I put the mosfets back to back. Guess why?
Andreas

The fets work more symetric if they have the same temp?

/loovet

[Orgonom]

as the transductanz vary with the temp - Yes.

Andreas

[Samuel Jayaraj]

Can this X-Preamp be made to work just as well with Pchannel IRF devices in place of the ZVP3306 (since I am not able to obtain them)? What are the changes that need to be incorporated? Can we have a schematic of this as well? Perhaps, this will generate more interest from everyone to couple this preamp with the Aleph-X amps.