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eXStatA Build Thread II - Page 35

post #511 of 567
Quote:
Originally Posted by drclaw View Post

I have had the amp board stuffed for some time now and waiting to get the parts for the ps; however, it looks as if I will not be able to for the foreseeable future.  So, I would like to pass this project on to someone else who can give it the life it deserves.  It is the tube version, and I have the amp board stuffed.  The power supply board is not, and I don't have any parts for it except a cap, I think its position is C6.  I also have 5 RCA tubes and 4 other tubes.  Also I have several connectors.  I figured it would only be fair if I charged what I paid for it all, it's not negotiable.  PM me if you have any questions, want pics, the price, etc. 


I have a hybrid eXStatA with a bad right channel.  I have the complete BOM to build SS amp boards to go in it, but I can't stuff them.  I would be very interested in your stuff, where I would take the built amp boards and transplant them into my broken amp (and then sell my SS boards and parts)

 

I'll PM you now.  Thanks!

 

post #512 of 567

Hey all. I am embarrassed to say that I am one of those builders who has been sitting on his exstata boards. But, having recently finished restoring a fisher 500c tube amp, I feel a bit more confident in my DIY skills, and am ready to start planning and gathering for the exstata.

 

At this time, I have:

-1 set of exstata hybrid boards

-luvdunhills plugs for both normal and high bias

 

Are there things from the BOM that i should get from members here?  I'm thinking specifically of the matched items. Tubes, jfets, etc.  

 

I have been out of the loop for a while. We're there any tweaks to the hybrid boards that I need to be aware of?

 

Over the next month or so, I will be reading all of the exstata threads to avoid asking questions that have been addressed already.  I will be back for help without question.   I'm very excited about finally getting it together on this. I hope to start building by January at the latest. 

post #513 of 567

Hi

 

If anybody has a board set (SS or Hybrid) that they would like to sell, a PM would be appreciated.

 

Many Thanks

 

Andy

post #514 of 567

Hi,

This is my amplifier. It's the "SS" version. I am very pleased the sound! smile.gif

 

 

P1080832.JPGf3411cd1_011.JPG 001.JPG

post #515 of 567
Quote:
Originally Posted by Keithpgdrb View Post

Hey all. I am embarrassed to say that I am one of those builders who has been sitting on his exstata boards. But, having recently finished restoring a fisher 500c tube amp, I feel a bit more confident in my DIY skills, and am ready to start planning and gathering for the exstata.

 

At this time, I have:

-1 set of exstata hybrid boards

-luvdunhills plugs for both normal and high bias

 

Are there things from the BOM that i should get from members here?  I'm thinking specifically of the matched items. Tubes, jfets, etc.  

 

I have been out of the loop for a while. We're there any tweaks to the hybrid boards that I need to be aware of?

 

Over the next month or so, I will be reading all of the exstata threads to avoid asking questions that have been addressed already.  I will be back for help without question.   I'm very excited about finally getting it together on this. I hope to start building by January at the latest. 



 I might have some parts that you could use and taht i need to get rid of. Let me know and its yours. 

 

 

Quote:
Originally Posted by loserica View Post

Hi,

This is my amplifier. It's the "SS" version. I am very pleased the sound! smile.gif

 

 

P1080832.JPGf3411cd1_011.JPG 001.JPG



Nicely done!!!

post #516 of 567


geez, would you believe I just found this.  pm incoming.

Quote:
Originally Posted by sachu View Post



 I might have some parts that you could use and taht i need to get rid of. Let me know and its yours. 

 

 



Nicely done!!!



 

post #517 of 567

not much action here anymore.  I must be the last one who hasnt built his amp yet.  how humiliating.

post #518 of 567

I haven't built mine either.  I keep thinking, "Sometime when I'm not so busy" and that never happens.

 

Last time I checked, I had all the parts.

post #519 of 567

Before I built my own electrostatic amp I improved eXStatA ... I increased Iq (which was originally quite low), but (for me) with no significant step forward. For me EXStatA is just badly designed amp, because I'm a fan of low distortion amps.

If you are looking for more accurate amp try another one. If you are (as I call it) "distortion lover" try higher Iq.

post #520 of 567
Quote:
Originally Posted by AmarokCZ View Post

Before I built my own electrostatic amp I improved eXStatA ... I increased Iq (which was originally quite low), but (for me) with no significant step forward. For me EXStatA is just badly designed amp, because I'm a fan of low distortion amps.

If you are looking for more accurate amp try another one. If you are (as I call it) "distortion lover" try higher Iq.


Wtf?
post #521 of 567

Is there any link or proof to that measurements?

post #522 of 567

Keithpgdrb: you maybe misunderstood me, I am not saying that eXStatA is bad in general. It's just bad for me, because I prefer low distortion, neutral sound,... Many other people like amplifiers that intentionally adds distortion, so from their point of view it's great amp!

marcus1: those numbers are roughly similar to my measurements.

post #523 of 567

 

Quote:
Originally Posted by Sathimas View Post

Is there any link or proof to that measurements?


Yeah, the evidence can be found if you know where to look. The Exstata pushes some pretty high distortion at even 100V P-P. Still sounds great with the Lambda to my ears.

post #524 of 567

 

Quote:

Yeah, the evidence can be found if you know where to look

 

Well, this is worse than no answer ...

 

 

I just saw that kevin gilmore himself showed these values, so I think it's reliable.

 

As far as I could see the "improvements" mentioned where never concretely discussed?

post #525 of 567

Quote:

Originally Posted by Sathimas View Post

 

I just saw that kevin gilmore himself showed these values, so I think it's reliable.

 

As far as I could see the "improvements" mentioned where never concretely discussed?


Well, by the time you tack on all the extra bits required to bring the distortion down, you lose all the benefits the Exstata had anyway - low power usage, small footprint, etc. So why jazz up the Exstata when you can just start with a more robust base design?

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