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Old 7th June 2003, 02:48 AM   #11
chops is offline chops  United States
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This is close to what I would like to do to my DAC8. The only thing is, the d/a converter for the Nad cd player is a Sigma-Delta. Mine is a..... well, I'm not sure what it is exactly. All it says in the manual is that the "Resolution" is 18 bits.

Maybe someone can figure something out!

Click the image to open in full size.

I found this and other various interesting projects at UltraAnalog
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Old 7th June 2003, 03:06 AM   #12
PassFan is offline PassFan  United States
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Default Re: DR. EVIL.

Quote:
Originally posted by fdegrove
Hi,



It was my understanding you requested the circuit diagram for the MF X10-D.

Dr.Evil has decided you won't get it.
He slammed you in the door pretty hard Frank. Someone with more wit than you perhaps?


Dr. Evil lives
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Old 7th June 2003, 04:13 AM   #13
mig-ru is offline mig-ru  Russian Federation
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Default Re: Barf.

Quote:
Originally posted by fdegrove
Hi,

Using 10 6AS7G/6080s per channel in my amps and having tried several sources I can only say that both sources could be correct,

I had some old NOS 6AS7Gs that really sounded, errrr....like radio nostalgia: too sweet and dull.

Generally speaking this tube is a formidable performer with no sound I can think of...

So, in conclusion I think Bob Danielaks' description is more accurate.

Of all triode DHT powertube tubes it certainly is one of my favs.

Cheers,
Aren't the 6AS7G and 6080 tubes indirectly heated??
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Old 7th June 2003, 09:29 AM   #14
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Talking RE:DR. EVIL.

Hi,

Quote:
Aren't the 6AS7G and 6080 tubes indirectly heated??
Oops...yes, that should read IDHT.

Goes to show that Dr.Evil is still alive and well, doesn't it?

Cheers,
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Old 7th June 2003, 02:50 PM   #15
chops is offline chops  United States
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One other thing I found out last night on the internet, AMC apparently made a DAC9 with guess what?... A tube output stage!

However, I could not find any reviews or articles on the DAC9, or specs for that matter. In fact, I couldn't find much of anything about the DAC9.

So, in the long run, I think it would be better to do a DIY project out of the DAC8, since I would have control on what goes into it as far as parts and the like.

I am going to be opening it up today to check out the innards and snap some shots. If anyone is interested, I will post a few of them if you think that might help some.

I am also going to be looking into doing some tweeks to it like upgrading the RCA jacks to good quality gold ones that bolt to the chassis, possible upgrading some internal wiring, and maybe even upgrading the psu. (I'm not too sure about that last one yet though.)

Is there any thoughts or ideas on what to look for when I open it up? What about the # code on the DAC chip or the clock? Anything else anyone can think of, please let me know about it!
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