Aleph J-X Amp Project

[EUVL]

Peter,

You better start a GB thread. People can't wait.




P.

 

[Peter Daniel]

I thought that was GB thread

This is the latest board revision:

 

[EUVL]

Does what you shown qualify as ONE board ?
i.e. for a channel X, one needs to order 2 boards?

How thick copper ?
And what is the lead spacing for say R1?


Patrick

 

[Peter Daniel]

Yes, that's ONE board and the price will be approx $18.

This is good for a stereo Aleph J, two of them are needed for stereo AJ-X. Copper will be thick enough, as with my other F amp boards.

Lead spacing on R1 is 200mil, which is good for Caddock MK132 and Dale CMF50. For Vishays S102 you need to "spread" the pins slightly, but I never found it a problem.

 

[EUVL]

Then I'll take four.




Patrick

 

[Leopardolo]

Yes, that's ONE board and the price will be approx $18.

This is good for a stereo Aleph J, two of them are needed for stereo AJ-X. Copper will be thick enough, as with my other F amp boards.

Lead spacing on R1 is 200mil, which is good for Caddock MK132 and Dale CMF50. For Vishays S102 you need to "spread" the pins slightly, but I never found it a problem.

Hello Peter,

I repeat my order, I am interested in one stereo set.

Regards
Tom

 

[Tea-Bag]

I am in for a stereo set I think,
I've been poking around a little, not a solid builders thread I could find.

Does this need matched IRF's? I assume so.

I think I read previously that two Sj74'matches can be used instead of 109.

 

[Mishkaa]

Still good on one stereo setup - needn't go with the X at the moment....

LMK where to send the $ and how.

 

[Dane]

Great looking, I'll take an extra set.

 

[Floric]

Even though I find them boring those collecting-threads: Peter, please count me in for two (non-X) sets.

regards

flo

 

[AMV8]

Peter

Looks great and I would like 4 boards.

Don (AMV8)

 

[10y]

Hi Peter,
count me in for one stereo AJ-X set.

 

[kin0kin]

1 set of stereo AJ-X as well

btw Peter, when the GB thread is officially out, would you be offering the PS board as a complete set or would the PS board have to be ordered separately?

 

[jazz]

HI,

I confirm I'll take two boards.

Joris

 

[vitalica]

Aleph J-X

Hello Peter,

I repeat my order, I am interested in one stereo set Aleph J-X

Regards ,
Vitalie

 

[RoboMan]

Hi Peter,

I'll need four boards, please.

 

[Peter Daniel]

I opened a proper GB thread here: http://www.diyaudio.com/forums/showthread.php?s=&postid=1879567#post1879567 and I'm ready to collect payments.

I'm writing this from a hotel room in Prague

 

[udailey]

board size

Peter,
So what are final board sizes? Thinking about heatsinks with large tabs on them and need to know spacing.
Uriah

 

[udailey]

Also,
Are there any guesses as to watts needed to dissipate and how warm are sinks allowed to get?
Uriah

 

[kin0kin]

Please correct me if I'm wrong. The AJ-X would switch to Class AB when exceeding 30w output. Is that correct?