i am ready to build Aleph-X

[space2000]

sorry i was unable to post the pic yesterday. here is the little baby aleph-x, just born.

now its sound is very clean, no more hum. i am here using only 4 pcs IRFP240 but now i will slowly increse.

this is only for testing purpose there are lots can be done. just a bgng.


*Thanks for helping me to usnderstnd some part of this amp.

best regards
mchael

 

[Netlist]

Re: Successfully build aleph-X.

How about aleph-x (– input)? Should I keep just open?

It is written in the WIKI, Michael:
http://www.diyaudio.com/wiki/index.php?page=Aleph-X

4.5 - Connecting an Input

/Hugo

 

[Mooly]

Re post # 18. Thought it read "Picture of new baby elephant"

 

[space2000]

sorry can't upload the pic on forum. i am trying to upload this two days, always comes without pic. i am still trying to upload the pic. may be will send you by email.

thank you

 

[audioholik]

its written on wiki that when you using unbalanced input you should connect -In and GND togeter.. this will provide +6db gain..

CMIIW

dont forget to adjust differential dc offset and absolute DC offset like i was

 

[space2000]

picture

hi,
here is the picture of big baby alpeh-x. it is a prototype board just a bigining. sound very clean no hum at all. it is operating well but there are lots to be done. i used only 4pcs mosfets to test how its run. i think it is now 20w right?

thanks for your info.

best regards
michael

 

[space2000]

hi,

the heat sink gets too hot so i shifted to another heat sink. now i added two pair each side.

its too hot...now about 51c heat sink temp, my amb is 31 now.