[pabbi1]

Any update on the discrete buffers?

 

[dsavitsk]

Quote:

Originally Posted by Erik S. Is there a noticable difference by using Holco or Roederstein resistors instead of of Vishays?

I think Holcos in the signal path sound harsh and brittle which does not compliment this circuit well. Rumor is that some of them have steel caps, though I don't know if this is really true. If I were using a boutique metal film I would use a PRP over the Holco (though I am not familiar with how Roedersteins sound as I've not had the opportunity to use them.) Of course, you can also leave the output resistors out completly which should be the best option.

-d

 

[Emon]

Quote:

Originally Posted by pabbi1 Any update on the discrete buffers?

The Millet site on DIYforums said the prototype boards were ordered in May. I'm quite interested in these, as I imagine the Burr-Brown buffers are the weak point in the system.

 

[bg4533]

What is the performance difference between 24V and ~28V? 24V would allow the use of the 25V Cerafines and Silmics that are pretty easy to get.

 

[drewd]

Quote:

Originally Posted by bg4533 What is the performance difference between 24V and ~28V? 24V would allow the use of the 25V Cerafines and Silmics that are pretty easy to get.

I hear no difference at all.

-Drew

 

[n_maher]

Quote:

Originally Posted by pabbi1 Any update on the discrete buffers?

For the love of Pete, give us a moment to catch our breath will ya

. Drew and I are concurrently working on buffer options, Drew's being the far sexier of the 2. If I can get a handle on Eagle I may have something post in the next month or so. But progress is going to be slow as a lot of free time was devoted to this project and the missus is, how you say, not pleased

.

Quote:

Originally Posted by bg4533 What is the performance difference between 24V and ~28V? 24V would allow the use of the 25V Cerafines and Silmics that are pretty easy to get.

In my opinion you do so at your own risk. The concerns of using caps that barely meet the voltage requirements of the power supply have been discussed already but the long and short of it is, if you're willing to risk an entire amps worth of caps that's up to you. Take it from someone who's blown one up the cleanup sucks.

Nate

 

[pabbi1]

Yeah, yeah, yeah, I can listen to that (re: the missus isn't pleased) at home...

However, leaving that pic of the discrete buffer on the web page for everyone to scroll through every time we have to reference something is just waving the red flag at the bull... you have to anticipate a charge sometime. And, with the development status morsels (ya'll are listening to protos), well, what's a rabid DIY gonna think?

 

[n_maher]

Quote:

Originally Posted by pabbi1 And, with the development status morsels (ya'll are listening to protos), well, what's a rabid DIY gonna think?

Well, to be perfectly blunt the proto blew up so we're back to revising the boards

. If you want an exploding diamond buffer just let me know!

Nate

 

[pabbi1]

Well, thanks for the cold shower... between making a STEPS with no fuse, and exploding buffers, looks like my 4th of July is all set...

Like Tom Petty said, the waiting (for parts - Wellbourn) is the hardest part.

 

[n_maher]

Quote:

Originally Posted by pabbi1 Like Tom Petty said, the waiting (for parts - Wellbourn) is the hardest part.

They weren't exactly "quick" w/ my delivery either so I've since found other sources for the parts they offer. Don't get me wrong, they aren't that bad, but they just don't have anything I can't get elsewhere anymore.

And sorry for the downer on the diamond buffer, Drew's working on other options as well, but both he and I have full time jobs that have to get done in order to pay the bills

.

N

 

[pabbi1]

Not a downer at all... just thought I'd ask about it... and, started to bring up "March Madness", but, like by telepathy, the good doctor popped up.

 

[mrdon]

Almost complete. Just need a few more parts, pieces, and finishing of the wood. I'll post the finished product when complete. Enjoy!

 

[rreynol]

Been listening all day and enjoying it (Still not sure about going topless or drilling the holes for the tubes to stick through).

 

[n_maher]

Now those two posts put a serious smile on my face after a dang long day at work.

 

[aeroes]

I got all the parts already except for the tubes

Can someone tell me whats the most detailed tubes that works with millet?

TIA!