Babelfish XA252 / Babelfish XA252 SIT / Babelfish XA252 SET

[Zen Mod]

I had a small solder bridge on the bottom of the board in those resistors around JP1 and inputs

Damn!

Who did that to you?

 

[Zen Mod]

And I'll get a little XA252 SET vs SIT listening opportunity this weekend.

........ what's not to like ..........

 

[poseidonsvoice]

Best,
Anand.

 

[rhthatcher]

Anand, camera angle looks like it. But no. I saw that and clipped the excess. But it was a-ok.

 

[andynor]

my local vendor is making exquisite products, but (I asked) they aren't willing to ship out of Serbia

But to Vikinglandzezzez, in row boats. It turns out Sasha’s and my great great great great grandfather are one and the samezezzez

 

[Russellc]

Ok, ready to drill and tap mosfet mounting screws. Using M4. Feet are mounted to bottom cover, some nice large rubber jobs. Transformer mounted. Getting closer.

Russellc

 

[Zen Mod]

don't forget to forget to put isolators between mosfets and heatsink and not to forget to smear some thermal paste

 

[Plott]

 

[Russellc]

Yes, I followed as you helped another, mosfet,goop, mica, goop, heatsink, goop, mica, goop, mosfet. I will post pics before doing anything nuts!

Russellc

 

[Plott]

Mightiness,
in preparation of this amp I will order the donuts as follows: 400va per channel, sec: 2x24v.
Would it be okay? Or would be 300va per channel also okay?
Thanks in advance!

 

[Zen Mod]

VA, more - the merrier

24Vac * 1.25 = 30Vdc

if possible, take it to 35Vdc, for which you need approx. 28Vac secondaries

big pucks are happier with more voltage - not just matter of power but also linearity

 

[Plott]

Okay, thanks.
I thought 24vac * 1,41 = 34vdc, but it's obviously only when a simple Graetz is used, not a CRC?
So I will go for 2x 400va with 2x28vac.

 

[Zen Mod]

1.41 vs. 1.25 is difference between unloaded and loaded rectifier+cap bank

showing ability of reservoir caps to fill boundary wiggles, plus increased voltage sag across rectifiers (apparent series resistance)

with ideal rectifiers and infinite cap bank that difference much smaller, but - luckily - we don't need to count on that

buying Donuts as pop-corns wouldn't be fun

 

[Plott]

Cool, thanks, donuts ordered 👍

 

[Zen Mod]

pop-corns?

 

[dBel84]

Will be joining the party soon 🍿

 

[Plott]

pop-corns?

Are 400va 2x28vac donuts pop-corns?

 

[Zen Mod]

if you obtain flux cap, they will be

 

[Plott]

I have one, but I won't install it, I promise

 

[ItsAllInMyHead]

I was going to grab a spare, but my local store is out of stock...

https://www.oreillyauto.com/flux-capacitor?q=flux+capacitor+

I love that their web team put in some Easter Eggs.