Post your Solid State pics here

[Hicoco]

DIY an other CRESCENDO MILLENIUM

Elektor stopped PCB sales for Crescendo millennium a few years ago, so I created a new PCB.

I just finished my Crescendo Millennium modified and adapted with only one PCB that I design, it includes the amplifier board and protection DC board, which was composed of 2 PCB by Elektor April 2001.
The amplifier works perfectly without hummmm, it can deliver 28Vrms under a load of 8 ohm. The sound is excellent and very pure, I would say crystalline .........

 

[kct]

^Nice.

 

[Bigun]

Hicoco, I like the white pcb’s as you don’t see this colour often but makes sense for easy read of labels. Do you have the air grills in the cover aligned with the heat sinks inside?

 

[Hicoco]

Hicoco, I like the white pcb’s as you don’t see this colour often but makes sense for easy read of labels. Do you have the air grills in the cover aligned with the heat sinks inside?

Thanks, the air grills are on a rear cover but all the a bottom is with hole , the max temp is 50℃ inside after one day playing music

 

[greierasul]

2x200w in 4ohm, 2x125w in 8ohm, slew-rate 80v/usec, THAT 340 bipolar array input stage, no Miller compensation, 1kva toroidal transformer with 3 belly bands(2 of GOSS and one mu-metal, 88.000uF, dual monoblock, separate voltage rails for weak signal stages and output stage, full aluminium housing.

 

[kct]

^^^Nice !

 

[greierasul]

^^^Nice !

Thanks ! During the tests. Not very clean but...

 

[Bigun]

something seriously wrong there, the lab floor is shiny and clean, it should be covered in parts, pieces of discarded wire, spec sheets, parts catalogues, splatters from the soldering iron, maybe an old pair of socks. Need to get your lab in order

 

[kct]

Very nice. Actually your Lab/shop does not look too bad.

You whetted my appetite, I am curious now how it looks inside.

 

[greierasul]

Now it looks pretty nice inside The floor is horrible. That salt and pepper pattern swallows every small piece. You can't find it anymore, maybe when you step on it. ))))))))))

 

[borys]

Crazy people are making crazy things
Some more work needed but not much.

 

[pinnocchio]

Crazy people are making crazy things
Some more work needed but not much.

Hi Borys,

Very nice layout!

Are you going to post this design on your website?

Thanks
Do

 

[thimios]

Crazy people are making crazy things
Some more work needed but not much.

Nice, very nice!
No more tubes?
I like your board, especially the smd area.

 

[kct]

Crazy people are making crazy things
Some more work needed but not much.

Hehe, that's crazy !

 

[borys]

Thanks for kind words.
The project needs a bit more work and fine tune bias compensation. It sounds very nice as it comes form very well known topology just look at it (on my very messy schematic).
More updates next week.

 

[avtech]

Very nicely wound inductors. Do you make them yourself?

 

[borys]

avtech23

The inductors --> i wounded them on the philips screwdriver, nice and easy work. I needed right and left threaded ones so had to prepare them myself.

Regards

 

[xrk971]

Aksa’s DELTIC prototype build completed. 60-80wrms Class AB. Superb layout by JPS64.

 

[kct]

^Nice

 

[Bonsai]

Catching some Leonard Bernstein on the kx-Amp in the lab today. The preamp is the 'Symphony' which I built about 5 years ago when living in Taiwan. I am using an old Pioneer CD/SACD player.