Another SJEP Giveaway

[schultzsch]

Received mine today, many many thanks!

 

[e_fortier]

You guys are a very lucky bunch, enjoy them 👍
I hope I’ll have a chance one day to hear an amplifier build using these.

 

[Chri12]

Recieved Today, happy times!
Thanks for fantastic generosity!❤️

 

[EUVL]

Further to post #176, here is the GB for 2SK3497, as promised, for those lucky guys with a pair of Semisouths :
https://www.diyaudio.com/community/...ed-2sk3497-pairs-at-55-c.396555/#post-7285990


Patrick

 

[Peppe]

I call this progress 😗

Time to rest my eyes

 

[Lvandoorn]

I finished my F2j with the generous gift as organised and written up in this thread. I am so very happy with the sound. They make my friends and my own fullranges (philips 9710 TQL Fostex 208 Vulcan horn and Lowthers 6 open baffle) sing like never before. IMHO.
Thanks again for the Semisouth miracle give away and all the work to make it happen

 

[Peppe]

Thing is that I was already building a FW PSU for a mini-dissipante chassis when the SS pair fell into my lap. Now I am thinking that if I want the J2 finished before the summer I should set aside the PSU board kindly provided by Randy for next build and hijack this already-built PSU into the J2.

TBS

 

[codyt]

That makes sense to me - use what you have to get the amp you’re most excited about across the finish line. Definitely how my mind operates 🙂

Lookin good!

 

[Rewind]

Inspiring stuff!
Consider a relay to reduce turn on zap of the caps. Mine bulged in my F5 shortly after building it. But they were very cheap caps.

 

[Peppe]

Thanks!

The CL-60 on the transformer primary should take care of the inrush current at turn on. We'll see.

 

[Rewind]

Mine did not. I wonder if the Universal PSU needs some fine adjustment for us in 230V countries.

 

[Vunce]

Probably more to do with the cheapo no name Chi Caps than the psu scheme.😉

 

[schultzsch]

Finally I got to use mine. Same nice sound as with the sits but with a bit less thd.

 

[Peppe]

That is a nice clean PSU!

I was just reading about your A2CMx yesterday. Is it that?

 

[schultzsch]

Thank you Peppe.
Yes.

 

[Peppe]

I said this was my summer project but I did not specify in which hemisphere

Finally done! Here it comes 🥁

Thanks Cody, Nelson, Randy, Patrick and everyone that shared their knowledge in the J2 thread (the omnipresent ZM of course)

 

[Zen Mod]

Fugly!

 

[Peppe]

Fugly!

Here it comes a screenshot... and a new sticker for the back panel

 

[Zen Mod]

next time, base plate lip up + 10mm distancers, so free clearance to route mains wires underneath

 

[Peppe]

I knew this ZM trick but I was worried about the clearance for the top cover. The toroid is bulging a bit where the wires come out and I have a tiny bit more of 10 mm of space up top. However, I think I know how to do next time around. 😉