[Currawong]

The Sun box is very classy. I have some of those....back in Australia.

I'll definitely be building this when it's available, as I have to give back my borrowed 007t.

 

[runeight]

Quote:

Originally Posted by les_garten /img/forum/go_quote.gif @Pabbi1 are you getting any hum with this setup?

Pabbi1 may have missed this post. I can only say that so far he has not reported any hum or noise.

 

[les_garten]

Quote:

Originally Posted by runeight /img/forum/go_quote.gif Pabbi1 may have missed this post. I can only say that so far he has not reported any hum or noise.

Thanx! Just curious with the Transfos kinda close.

 

[spritzer]

There are some very cheap 4-gang stepped attenuators on ebay which would fit this nicely. They all use the same old, cheap 23 step switch but some use Vishay resistors for about 30$.

Quote:

Originally Posted by dBel84 /img/forum/go_quote.gif That adjustable bias makes me think that those panel led meters will be very handy ..dB

This could work if the meters have a very high input impedance. Otherwise the bias voltage will drop and you won't get an accurate reading.

 

[n_maher]

Great work guys! I wish this had been around a year ago, might have saved me some serious $$.

 

[manaox2]

Got the tubes and sockets, have been waiting on the BOM. Thanks so much all for doing this, this is going on my Christmas list.

 

[pabbi1]

Quote:

Originally Posted by les_garten /img/forum/go_quote.gif @Pabbi1 are you getting any hum with this setup?

Absolutely zero. The Triads are mechanically noisy, and have gromets underneath to isolate this, but absolutely none comes through the amp, at least not that I can hear. But, isolated mounts will be required with the (really cheap) Triads.

 

[luvdunhill]

Great work! It's sort cool that we have two additions to the uber-high-end and now two additions to the low-end electrostatic amplifier family after such a long time of no new designs

 

[manaox2]

Quote:

Originally Posted by luvdunhill /img/forum/go_quote.gif Great work! It's sort cool that we have two additions to the uber-high-end and now two additions to the low-end electrostatic amplifier family after such a long time of no new designs

T2, SS eXStata, Tube eXStata, whats the second uber high-end DIY design? (Assuming your not talking about the KGSS or BH)

 

[wiatrob]

Quote:

Originally Posted by pabbi1 /img/forum/go_quote.gif Absolutely zero. The Triads are mechanically noisy, and have gromets underneath to isolate this, but absolutely none comes through the amp, at least not that I can hear. But, isolated mounts will be required with the (really cheap) Triads.

X2 - I have used bothe the Triads and Hammond very close to the boards in testing and there's no induced hum. This amp seems very robust when it comes to extraneous noise - I have had quite a bit of spagehtti on the bench and as long as the grounds are correct, silence...

 

[Emooze]

Congrats all for seeing this through. I think I found my next build, eagerly awaiting a BOM and boards.

 

[luvdunhill]

Quote:

Originally Posted by manaox2 /img/forum/go_quote.gif T2

that would be the improved (working) "ES-1/ES-2" design

 

[nattonrice]

Quote:

Originally Posted by manaox2 /img/forum/go_quote.gif T2, SS eXStata, Tube eXStata, whats the second uber high-end DIY design? (Assuming your not talking about the KGSS or BH)

He means the diy SRX.

edit: lol had a funny feeling I'd be too slow typing =]

 

[les_garten]

Quote:

Originally Posted by pabbi1 /img/forum/go_quote.gif Absolutely zero. The Triads are mechanically noisy, and have gromets underneath to isolate this, but absolutely none comes through the amp, at least not that I can hear. But, isolated mounts will be required with the (really cheap) Triads.

Quote:

Originally Posted by wiatrob /img/forum/go_quote.gif X2 - I have used bothe the Triads and Hammond very close to the boards in testing and there's no induced hum. This amp seems very robust when it comes to extraneous noise - I have had quite a bit of spagehtti on the bench and as long as the grounds are correct, silence...

Awesome, Thanx!

 

[runeight]

Quote:

Originally Posted by luvdunhill /img/forum/go_quote.gif Great work! It's sort cool that we have two additions to the uber-high-end and now two additions to the low-end electrostatic amplifier family after such a long time of no new designs

I wouldn't necessarily compartmentalize this amp this way. It may be inexpensive but it may not at all be low-end. The performance may be much better than the price tag indicates.