[fierce_freak]

I should get my case today, then I'll have everything I need for my amp except the LDR's for the lightspeed style attenuator I'm going to build for it (I'm just going rca inputs). I do have a stepper I can use in the meantime.

Biggest problem I have is no headphone cable, lol.

 

[pabbi1]

Quote:

Originally Posted by Beefy /img/forum/go_quote.gif In a stroke of luck, my custom SumR transformer arrived today - I walked into my building just as the postwoman was walking out. It is sitting on a CD for size reference. A touch scuffed on the encapsulation, but who the hell cares? I now have absolutely everything I need to have my amp fully built and cased, except for Stax Jacks (in the mail) and FPE panels (99% designed, pending jacks), so assuming no failures or part oversights, its going to be a productive holiday season!

Very nice - what was the final cost?

 

[Beefy]

Quote:

Originally Posted by pabbi1 /img/forum/go_quote.gif Very nice - what was the final cost?

Canadian $67 for the transformer, an additional $13 for shipping within Canada, tax, PayPal...... CA$87.36 at my door.

The proof will be in the pudding when I wire it up to a PSU - should be before the New Year.

 

[les_garten]

Quote:

Originally Posted by Beefy /img/forum/go_quote.gif In a stroke of luck, my custom SumR transformer arrived today - I walked into my building just as the postwoman was walking out. It is sitting on a CD for size reference. A touch scuffed on the encapsulation, but who the hell cares? I now have absolutely everything I need to have my amp fully built and cased, except for Stax Jacks (in the mail) and FPE panels (99% designed, pending jacks), so assuming no failures or part oversights, its going to be a productive holiday season!

How are you mounting the STAX jack?

 

[Beefy]

My Stax jacks are coming from luvdunhill. I will screw them in from the back of the front panel with blind threaded holes.

It adds approx $15 to the FPE work compared to just screw holes through from the front, but I think it will be worth it.

 

[macm75]

Are the pdf images on the "Before You Start" page 1:1 scale?
The eXStatA Electrostatic Amplifier
Just trying to identify a good box size (given phase 3 is a go (couldn't find a praying smiley)).
Thanks.

 

[wiatrob]

Yes, these should be 1:1 PDFs

 

[luvdunhill]

Quote:

Originally Posted by Beefy /img/forum/go_quote.gif Of the 25 I bought from Mouser, 16 were Idss <10mA....... not great.

you kididng? that's great

You're just not building the right amp. Sorry for not checking up, looks like digger945 took care of you though

 

[Beefy]

Yep, Idss were all quite low. And digger945 definitely saved my bacon for making a really good JFET quad.

What is strange though is that all of his recorded Idss were all exactly 15% higher than what I measured. Someone's multimeter is off......

 

[wiatrob]

Here's what might be Sherwood's eXStata Beta (yah, it's just my proto case with the new PS and Hybrid board in it - I put it together so a 'certain individual' can have a listen).

Looking into getting a custom finish treatment on the front. Damn inconvenient these holidays.

Listening to it now. Sounds fantastic. Needs a window so you can see the toobs. OH, there's CCS heatsinks in front of them. Nevermind!

 

[fierce_freak]

Anyone have a matched quad I could grab? I bought 30 with no dice =/

 

[bidoux]

Maybe you can use them even if they don't perfectly match. Post your values and ask someone who knows better than me.

 

[digger945]

Quote:

Originally Posted by fierce_freak /img/forum/go_quote.gif Anyone have a matched quad I could grab? I bought 30 with no dice =/

Pm sent, my good man.

 

[Keithpgdrb]

Quote:

Originally Posted by wiatrob /img/forum/go_quote.gif Here's what might be Sherwood's eXStata Beta (yah, it's just my proto case with the new PS and Hybrid board in it - I put it together so a 'certain individual' can have a listen).

 

[sachu]

tested the first of the power supply boards.

Came up right away.
T1 and T3 measuring about 340V wrt G.
Bias voltages are dialed in, 291V zener string. Using a 269JX for the transformer. Have a 369JX as well for the other power supply board and amp.

Will now bring up the second board.