Aksa Lender P-MOS Hybrid Aleph (ALPHA) Amplifier

[Juntuin]

Ah, I understand!
They would do nice monoblocks, but I'm also addicted about idea of water cooled build. I'm pretty sure that both of these amps will be part of my system for a long while when ready since I need 4-channels of amps and these heat generators seems to impress me every time!

 

[pinnocchio]

I had the idea of using water cooling since I used to overclock computers like crazy and had just about everything needed (2 radiators, silent fans, tubing, water blocks, etc...) until I realized that I had put everything into recycling some time ago...

Would have been fun..!

 

[Juntuin]

You trashed some expensive equipment

 

[AKSA]

Yes, Do, a great pity..... particularly for the Big Boy, with more than 210W dissipation, a couple of liquid monster CPU coolers would have been very, very handy.....

HD

 

[JPS64]

Thanks X for your patience and waiting.

Big specification submitted for control, ready to work on BB.

Progress:
- I´ve still to clear and definitively fix universal clamping solution (also usable for liquid cooling systems): I´ll order a 3D printed mockup and different CPU fan cooler beginning next week and it´s not cheap (perhaps directly PCB?)
- today I´m working on the µC fan control: thinking about specific board including main filter, main switch, inrush current limiter, DC blocker...

PWM supplies needs some strong filtering, not yet implemented on BB board.

Stay tuned!

JP

 

[JPS64]

I´ll BB - Arnie

 

[Juntuin]

Hey JPS, sounds cool! You could use that fan control with liquid cooling also. Just make sure that it's possible to build monos also out of them, so two displays-, fan driver etc boards

 

[JPS64]

Same compact board for stereo or mono, only onboard jumpers for mono L/R configuration then it´s software based µC solution.

And no, I don´t want to include voltage and current sensing! I know, only idiots never change mind.

JP

 

[Juntuin]

Sounds good, really like your ideas!

 

[xrk971]

JPS64,

Wow, that's like a commercially idiot-proofed fancy eye-candy solution there. Very cool.

I have a 3d printer but the nozzle is clogged and I never had a chance to fix it. One of those things on the "to do" list...

Maybe the GB can crowd-source you with the 3d printing costs for the pathfinder? How much are we talking about?

Basically, we make that part of the cost of the GB PCB's for the ALPHA 52W BB - and share the cost for all who want to participate in the GB.

Thanks for all you efforts. Looks wonderful.

 

[hajj]

JPS64,
If the 3D printed board is not urgent, I have access to a 3D printer that I can use for free.
Only down side is that it might take a few days to access it.
Let me know if that suits you, I can print it free of charge and ship it to you.

 

[AKSA]

Yes, JPS, it looks wonderful, very neat and tidy.
I really prefer however that there only a single pair to avoid the matching issue. That pre-empts 480W devices, or even 1040W versions from IXYS.
If you have three pairs they will have to be carefully matched of course but it's absolutely no problem if you can match them from a large sample.

Thank you again, fantastic work,

Hugh

 

[Juntuin]

Im with Hugh, definitely with single pair if possible.

 

[JPS64]

Thanks to all for this compliments, great motivation, but first, I want to thanks Hugh and X for this amazing contribution. Great developments shout after great implementation.

Back to work...

Thanks @hajj for your offer I´ll think about but dealing today with a friend owning CNC machine (beer, wine?). I´ll import IDF PCB datas into SolidWorks using CircuitWorks and generating CNC datas.

JP

 

[Vunce]

Hi X,
I think that’s a good idea to spread the cost throughout the group buy so JP doesn’t foot the bill for our pleasure.

I would also like to see single robust output devices.
And, a separate power supply for the fan controls so noise issues don’t corrupt the amplifier.

Fantastic work JP!

 

[xrk971]

Hi X,
I think that’s a good idea to spread the cost throughout the group buy so JP doesn’t foot the bill for our pleasure.

I would also like to see single robust output devices.
And, a separate power supply for the fan controls so noise issues don’t corrupt the amplifier.

Fantastic work JP!

I totally agree about the 3d printing costs to be shared, unless hajj has a solution for free...

I think that is why the fan controller is a separate board:

 

[Vunce]

I think that is why the fan controller is a separate board:

I missed the separate board, perfect

 

[Kokanee]

Wow BB really shaping up to be a monster. With liquid cooling, would a chiller be needed for return hot flow, or, are you thinking more along the lines of static fluid in the tubes. Beer equipment supplies have many models of "plate chillers", that may have some use. The cost increase's with the amount of plates. Check out http://more beer.com as an example.

MM

 

[xrk971]

CPU water cooling systems are well along and perfect for this. Since fan still required, I would rather do the heat pipe route and eliminate possibility of leaks.

Corsair Hydro Series H60 High Performance Liquid CPU Cooler 5711045262357 | eBay

Check out these cooling blocks, cheap!

2017 Primary Aluminum Water Cooling Block 40*40mm for Liquid Water Cooler Heat Sink System Silver Use For PC Laptop CPU-in Fans & Cooling from Computer & Office on Aliexpress.com | Alibaba Group

 

[Juntuin]

Big radiator or couple of smaller ones, fans controlled by BB and big enough reservoir tank. I have couple of drawings about the block where going to attach outputs, and they have lots of volume inside also.