Another Super High End Phono Stage! No expense spared...

[WntrMute2]

Usually Sachu has what you want. Quick delivery from India. I've bought boards from him quite a few times-all outstanding transactions!

 

[Rog50]

Not sure where to ask this so it does not get lost, but is this transformer ok for the power supply ?

http://ca.mouser.com/ProductDetail/Hammond-Manufacturing/166LA12/?qs=sGAEpiMZZMvwUzoUXIIvyVNS5hMbZJqQSY1T/OF9aiY=

and here is an updated mouser bom for the power supply
EDIT: had to change the trimpot to ones in stock

 

[absolon]

That will give you +/- 6V. You want a 24V CT transformer to get +/- 12V to feed your rectifier.

 

[Rog50]

ack
of course
what was I thinking, 12-0-12

 

[Rog50]

This amp from Mouser for the power supply ?

http://ca.mouser.com/ProductDetail/...=sGAEpiMZZMvwUzoUXIIvyVNS5hMbZJqQYWiLlYvD7TE=

 

[absolon]

Should work. I'll leave it to others to advise on whether a toroidal transformer might or might not be a better choice.

 

[spyNet]

Cnc rules!!!
Burson rules!!!

 

[sachu888]

Wow, what a build!! Could you post a small review?

Regards
Sachin

 

[Rog50]

Yup that is stunning !

 

[raju_747]

Here is my CNC Build...

 

[sachu888]

Very nice build Raju, one suggestion though, swap those 1uf Polyester caps either with 1uf K74- 16 Russian PETP caps. There will be good difference in SQ.

Regards
Sachin

 

[raju_747]

Very nice build Raju, one suggestion though, swap those 1uf Polyester caps either with 1uf K74- 16 Russian PETP caps. There will be good difference in SQ.

Regards
Sachin

Yes, I need to get a better output caps here. I am using 4.7uf Polyester.

 

[raju_747]

Cnc rules!!!
Burson rules!!!

very nice looking Amp enclosure work.... Can you share us info on how you got the panel artwork done...Screen printing or toner transfer etc?

 

[spyNet]

It is carved with cnc then filled with black paint.
I will make a review after I make some changes to the circuit and share then with you.

 

[HypnoToad]

Very nice work, makes me wonder how many of these have been built?

 

[ghazzer]

You could probably get a count of boards from yourself, Sachin and Skrodahl, then add a factor for DIY.

 

[spyNet]

Only one, mine. You can ask Sachin how many boards I have bought. If it was for commercial use a ready made iec filter would be used and not that ugly diy.
I just wanted to be as good as it gets I don't think that this is bad think.
You can visit the this forum and see other diy projects a lot better than mine.
We are a bunch of diyers helping each other, one with cnc the other with measurements the other with schematics and so on. We just love what we do.

http://avclub.gr/forum/showthread.php/149672-Οδοιπορικό-με-ένα-ντιούικο-dac?p=1057848656&viewfull=1#post1057848656

http://avclub.gr/forum/showthread.p...e-100W?p=1057657809&viewfull=1#post1057657809

http://avclub.gr/forum/showthread.p...GA23xx?p=1057742881&viewfull=1#post1057742881

 

[spyNet]

And my thread with refers to the sources of each part.

http://avclub.gr/forum/showthread.php/154981-Cnc-Phono-PreAmp

 

[spyNet]

The changes i have told to do is remove the 2.2uf capacitor and replace it with one 0.15uf so to cut the frequencies below 20Hz like a subsonic-ruble filter.
I have a viny with such problems and saw the woofer jump without hearing anything.
What do you think about that?
Second, to put a 20R resistor in series at the output of the second stage opamp protecting from an accidentally sort circuit.
Is that a good idea?

 

[Bugler]

My son recently gave me a Gold Aero DB45 Signature phono preamp. It came with a set of "resistor plugs" to adjust the impedance. He can't find the manual for it. Very little info about it on the web other than glowing reviews and a list price of $1000. Anybody know anything about it? A manual would be awesome. It's actually in mint condition. Reflections were a problem.
TIA for any assistance.