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EHHA Rev A - Interest Thread - Page 6

post #76 of 1671
Thread Starter 

Yes, although it is not absolutely necessary, it seems like nearly everyone gets better results with DC heaters on the EHHA. The gentleman who built the Rev A proto had the same result too.

Dr. Cavalli gained notoriety with his first DIY amplifier projects. His success has blossomed into Cavalli Audio, a world leader in amplifier design.
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post #77 of 1671

Integrated DC heater power supplies. 

 

Man, this thing may never get off the ground.  

post #78 of 1671

Next thing you know people will want all in one stereo config with integrated DC heater supply. >.>

 

Anyways, I like the current board, and I don't mind running a few wires over the score line. But if the board could be in red and yellow to match the millett filament supply it would be even better! :p


Edited by ujamerstand - 8/17/10 at 5:38pm
post #79 of 1671


 

Quote:
Originally Posted by ujamerstand View Post

Next thing you know people will want all in one stereo config with integrated DC heater supply. >.>

 

 

 

Quoting myself of a few posts back:
 

Quote:
Originally Posted by cobaltmute View Post

A two channel board with integrated power/heater supply would rock for building.  And then two boards would equal a fully balanced rig.

 

Maybe it would be dreaming, but then having the two channel board fit into a 1455T2201 for total ease of casework...


Dream big
 

post #80 of 1671

^^ bwahahahaha you must've predicted the future! Here's a smack on my head for not reading carefully. //>.>

post #81 of 1671
Quote:
Originally Posted by ujamerstand View Post
.... But if the board could be in red and yellow to match the millett filament supply it would be even better! :p


I'd prefer black boards - I built an exstata from the last "beta" run and those black

boards are really beautiful! Far better than the common green ones.

post #82 of 1671

I'd vote clear, but I love the look of the bare copper.

 

Black (and yellow) are apparently the worst choices for soldermask from a testing and manufacturing point of view.  The mask doesn't flow and cure as well, leading to a lower resolution mask.

 

Apparently clear is the best, followed by green, red and blue.

post #83 of 1671
Thread Starter 

You guys know what Henry Ford said when he was asked if people could have different colors on his cars? "They can have any color they want as long as it's black." Or something similar.

 

 

Dr. Cavalli gained notoriety with his first DIY amplifier projects. His success has blossomed into Cavalli Audio, a world leader in amplifier design.
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post #84 of 1671
post #85 of 1671

The downside is that you get your hands all dirty in the process...

post #86 of 1671

The downside is exposed copper traces for you to short with a probe during setup...

post #87 of 1671

I guess runeight won't sell insurance in case people do so...

post #88 of 1671
Thread Starter 

Black boards, white silk. You will like them.

Dr. Cavalli gained notoriety with his first DIY amplifier projects. His success has blossomed into Cavalli Audio, a world leader in amplifier design.
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post #89 of 1671

two thumps up !

 

I think I'll take a set of boards too.

 

- I do not need another headphone amp (got an M³, the exstata, a Meier Audio 2Move and soon a jibos-buffer-amp).

- I don't have space to put it somewhere near the rest of my hifi-system

- I don't listen to my Beyerdynamic DT880 much anymore since I have the stax ...

 

Well, the only reason why I want it is because I love shining tubes and building something.

Just can't hold my hands still  - especially during the winter months.

post #90 of 1671

If anyone wants it i have a set of pristine NOS matched pair of Telefunken 6GM8 tubes. The best i have heard on the EHHA. PM me if interested.

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