DIY ACA mini

[e_fortier]

It’s the one with the opening I’m wondering, no glue or joint. Beautiful.

I’ll just pretend it’s the top plate of a tube amp and simply build a frame around it like i usually do, wonder why i didn’t think about this before...at the same time I’ll put some speakers binding posts.

Eric

 

[grataku]

Enthusiastically recommended! 🙂

We don't need no stinking chip amps.

Nice! Do you come out directly from the PCB to go to speakers or you transition to binding posts?

 

[Michael Rothacher]

I used pigtails like these:

 

[Peppe]

I used pigtails like these:

Buy here or DIY 😉

 

[Variac]

Could also be put on top of a 230x170 1U Galaxy with a square hole in the top if you think it must match your other components. Get the version with the aluminum top to make cutting tolerable
Still, I would prefer a nice home made wood base

Galaxy 1U w/Aluminum Covers – diyAudio Store

 

[peppennino]

Yes this

https://www.diyaudio.com/forums/att...d1637530019-diy-aca-mini-1121211419_hdr_2-jpg

I’m already advocating that the ground plane have holes to support the ACA mini.
Then maybe we have 2 new standards for future “tower” projects, plus Raspi Pi holes….
Although drilling holes in a PCB isn’t difficult.

Mark

Wow, Mark! That's great!

 

[peppennino]

Enthusiastically recommended! 🙂

We don't need no stinking chip amps.

Beautiful, beautiful, BEAUTIFUL plank, Michael!

 

[Zen Mod]

me again, proudly, Papa is having ugliest Plank in Universe and around


Mr. MR is having cutest one, on top of cutest amp ever made

call me Biased, trice, all the time

 

[grataku]

I used pigtails like these:

so simple! 😀

 

[nicoch58]

need inspiration ?

 

[hayenc]

I've been running it for a few days now with no problems, but will check the temps of the ACP+ and report back.

After an hour of BTO at more than reasonable volume the ACP+ heatsinks are at about 40 C while the mini's are at about 50-55 C. Ambient is about 25 C.

 

[Nelson Pass]

More current running through ACA mini.

 

[e_fortier]

Hi

I have started my wooden frame. It’s 1.5” high and the sides are 3/4” thick.

Wood wise I’m not well equipped to do nice 45 degrees corners so I kept it simple.

Nothing is glued yet and in the final step the pcb will be 1/8” below all sides.

I’m attaching some pics of my progress and also a pic showing how small the amp really is.

Can’t wait to finish and hook it up again.

I hope you enjoy side view pics...gotta love iPhone...

BR
Eric

 

[peppennino]

Very nice, Eric!

 

[Variac]

The corners look like they were a choice, not a necessity, because they are so perfectly cut!
Excellent!

 

[grataku]

Hi

I have started my wooden frame. It’s 1.5” high and the sides are 3/4” thick.

Wood wise I’m not well equipped to do nice 45 degrees corners so I kept it simple.

Nothing is glued yet and in the final step the pcb will be 1/8” below all sides.

I’m attaching some pics of my progress and also a pic showing how small the amp really is.

Can’t wait to finish and hook it up again.

I hope you enjoy side view pics...gotta love iPhone...

BR
Eric

Nice!
how is the pcb attached?

 

[Zen Mod]

half a gallon of JB Weld?

 

[grataku]

Gallon? JB Weld...? I thought you were from the EU. lol

 

[A Jedi]

I may be blind because I can't find it - what is the gain of this little guy?

 

[grataku]

Gain not important, only music important! 😀