The Aleph30 PCB layout

[es44]

My current A30 has A 600 kva 18V transformer with 4 47,000 uf capacitors and 2 2mh coils (14 gauge) they are running (the chokes) 70 degrees C. Do you think this is to hot?

600 kva ? Darn, I'd like to see photo's of that lump of iron
Nahh, i know you just hit the "k" by mistake. I like those two coils in your PS. Respect

Regards
Ebbe

 

[wirewiggler]

Oh yeah drop the k, They make the power supply very quite hate to loose them. With the cover over then it gets quite hot.

 

[Keruskerfuerst]

The Pass 30 would be my first amplidier project

Are the PCB boards still availaible?
Where can I find a parts list?
Matched FETs?
Power dissipation of the amp?
Power supply size: ELKOs and transformer?

 

[jleaman]

I want those heatsinks that peter has. Those are pretty, would work great for a F4. Where did you get them peter ? Got any more ?


wirewiggler, your bentch top psu how do you like it ? is it any decent ? Im thinking about buying one. Your thoughts ?

 

[wirewiggler]

Jason,
I bought a heat sink just like Peters Mt Vesuvius from Apex Jr he has one more with 110v fan on it. The Power supply on the right is good, I thought it was a dual (plus and minus with ground) but is is just one with ground in the middle.

Bill

 

[jleaman]

Jason,
I bought a heat sink just like Peters Mt Vesuvius from Apex Jr he has one more with 110v fan on it. The Power supply on the right is good, I thought it was a dual (plus and minus with ground) but is is just one with ground in the middle.

Bill

I just want it so i can do dual rails for opamps and other stuff.
Ill be buying the Dual

 

[lovechild]

The Pass 30 would be my first amplidier project

Are the PCB boards still availaible?
Where can I find a parts list?
Matched FETs?
Power dissipation of the amp?
Power supply size: ELKOs and transformer?

nice nickname.
check here http://www.diyaudio.com/wiki/index.php?page=Aleph-30
and here http://www.diyamps.com/aleph/aleph.shtml
offers for matched fets can be found in the "Trading Post" section

 

[Keruskerfuerst]

After having a closer look at the schematics here: http://www.diyamps.com/aleph/aleph.shtml,
I would say: yes this unit dissipates much heat.

 

[wirewiggler]

Ok,
Got another Aleph running, I call this one ugly Betty. I was getting tired every time I wanted to build a new amp building a case for it. It sounds great as a A30 but it wants to to be a F4 or X- hint ,hint. It need a 12v fan with a PWM controller, don't think I will bother with temperature controller as temp stays constant after warm up. Turn off the lights and this one is my favorite amp, reminds me of a few of my ex-girlfriends.

 

[BrianDonegan]

It need a 12v fan with a PWM controller

You can probably get away with driving a 12V fan with 6-7V, which, with the right fan, will make it pretty quiet.

 

[jleaman]

Ok,
Got another Aleph running, I call this one ugly Betty. I was getting tired every time I wanted to build a new amp building a case for it. It sounds great as a A30 but it wants to to be a F4 or X- hint ,hint. It need a 12v fan with a PWM controller, don't think I will bother with temperature controller as temp stays constant after warm up. Turn off the lights and this one is my favorite amp, reminds me of a few of my ex-girlfriends.

I personally would not be ashamed of that, that looks pretty decent well layed out and simple. You like the sound ? does it get really hot ?

Jase

 

[wirewiggler]

It runs quite cool, which resister in Peters layout is for bias ? I will take it out completely. Since I will be swapping out boards and cooling requirements will change a controller will allow me tweak it. It has the same appeal to me as the nude motorcycles, functional, no frills, just the important stuff. Well maybe and a beer.

Bill

 

[jacco vermeulen]

nude motorcycles

Same HERE
Nice amBiflier, although the woody is the bestlooking P-labs copy i've seen, i'd probably stick big Betty in an acrylic tower showcase.

(reminds me, my dutch pro socker association neighbour trashed his Duc 996sps on the track a couple of years ago, the guy never rode it a mile on the highway. Used to gloat every time he could show me his carbon $ stuff, S4R for me)

 

[wirewiggler]

Used to ride a Duc, always had a hard time putting the fairing back on. Never thought about wearing a thong when I sat on it though.
Ah the draw of beautiful machinery ( two wheeled and two legged).

 

[evilspirit]

look,my pass a30 layout

my pass a30 layout

 

[meanman1964]

Basic idea for my Aleph 30 housing

 

[meanman1964]

Another pic

 

[meanman1964]

Next pic

 

[meanman1964]

Finaly start soldering my boards but I've one question about Q1-2.
Does they need a heatsink?

 

[Buhl]

If you are refering to the dual 9610 FET input pair (which I think you am) then the answer is no - however it will not harm either. What is more important I think is that they track termically - Mine are joined around a TO220 mica and gue using a nylon bolt - they must be electrically isolated from each other!

Kind regards
Hans