Comments on my Aleph-X layout?

[Howie777]

Good to see your back Kari!

I have decide to increase my order, but to make it easier I think I'll just add a new line in the wikki table. This way the second line will show I have not paid yet but the first will show that I have. That way if the board prices change it will be easy for me to compensate the second order price to the new board price (for both orders). I just wanted you to know what I was doing by having two orders under one name on the wikki page.

Thanks for all your hard work Kari and I hope all is well with the family situation.

Howie

 

[tschrama]

Thanks for your update Kari. Hoping things work out fine for you.

Regards,
Thijs

 

[KevinTams]

Thanks for the update Kari, good luck to you and your family, I wish you well
Kevin

 

[Coulomb]

Hello Kari, will you be contacting the People on the Wiki that registered recently for payment?

Regards

Best Wishes

Anthony

 

[sippo]

Hy everyone,

i´m new to this forum and first of all want to thank you for many ideas and help i get here.
I have i few questions regarding the Aleph-X. Would it be a big mistake to drive an Aleph-X from an unbalanced Preamp and could it be a problem to connect the outputstages point to point ?

Thanks in advance

Frank

 

[sippo]

Hello Kari,

is it still possible to place an order in the wiki ? And by the way, what is the thickness of the copperlayer on the PCB´s, i didn´t found any information in this thread.

Thanks

Frank

 

[seve]

Hi Kari.

I have tried to contact you to get my money back, but my mail most have gotten lost. Please contact me.

Martin

 

[Kari]

Hi seve,
i have now returned your money. Please also remove your entry in the wiki.

Thx,

Kari

 

[seve]

Thanks Kari I have received the money.

Martin

 

[acaudio]

Hello Kari,
I have too tried to contact you to get my money back.
I wait still...

Regards
Adam (acaudio)

 

[Kari]

Adam, sorry about the delay. I have now sent the refund.

Thx,

Kari

 

[acaudio]

Thanks Kari,
I have received the money and my entry in the wiki is removed.

Regards
Adam (acaudio)

 

[Sander]

Very nice to here form you Kari! I hope your situation will work out well. Until then I'll lay-low.

Good luck!

 

[kro5998]

sense resistors

Kari would it be possible to put in some pads to put the sense resistors onboard for those who want to use only 4 output devices.There is room onboard and they could be bridged for those who want to use more output Fet's.

 

[kilowattski]

The sense resistors are onboard. I think you are talking about the source resistors.

 

[Coulomb]

The sense resistors are onboard. I think you are talking about the source resistors.

The number of Sense Resistors is fixed, regardless of the number of FETS used is it not?


Regards

Anthony

 

[yldouright]

Attached is a power supply for a 4 channel Aleph-X in an LC configuration. Outside of the problems sending 8A through the coils here, does anyone see a problem here using a transformer with only a single post to tie in secondaries?

 

[kilowattski]

No way will you drop 18 volts across the rectifier and choke.

 

[kilowattski]

Anthony,

Of course. There is only one sense resistor for each CSS bank and one for each gain bank. What I think he is asking for is a setup similar to Hifizen's Aleph X PCB where the board can accomadate two CSS and two Gain fets and if you want more Gain and CSS fets they can be done on an external board.

 

[yldouright]

kilowattski
Apparently he can. Take a look at the bottom of this page and plug in the numbers. His bridge will lose him around 4V before rectificaton and the coils will give him around 88% of the result. BTW, happy new year!