The ultimate DIY? A Stax SRM-T2!

[luvdunhill]

yeah, but less tubes is less better, right?

[Dusty Chalk]

Um...that's a trick question, right?

[deepak]

Um...that's a trick question, right?

The T2 has moar tubes

[Les_Garten]

The proper version of the ES-1/2 (i.e. what I built in my ESX), with a few cool twists, which fits in the same chassis as the T2. The PSU is 100% that of the T2 and it uses the same compliment of 4 noval tubes (12AT7's for lowest distortion) and four EL34's.

Ahh, OK, now I get it, thanx!

[Inu]

This is my 2nd post...

Progress.

Imageshack - t2main2.jpg - Uploaded by inuponken

[shokunin]

new solid state designs.... check

ESX board to fit into the T2 with the T2 power supply.... check

(although i doubt more than a couple of people are interested in this)

+1 interested in the ESX design project and the SS projects...

[spritzer]

This is my 2nd post...

Progress.

Imageshack - t2main2.jpg - Uploaded by inuponken

Very nice and great use of spacers to elevate the parts. I'm wondering what those small black resistors are, since they look a bit like Holco's which would never work at these voltages.

+1 interested in the ESX design project and the SS projects...

The ESX is very cool, with TO220 power resistors and even a CCS for the output stage should you choose to use it.

[mrarroyo]

You guys have a lot of patience and talent, nice going.

[swt61]

The spacers are there to keep the heat away from the board, or to better cool the part? Very nice looking work Inu!

[kevin gilmore]

I really wanted to use those spacers, because i have seen them used a bunch of times, but

i could never find the part number for those things.

Please post the part number for the spacers. I think its a good idea that everyone use them.

[luvdunhill]

I really wanted to use those spacers, because i have seen them used a bunch of times, but

i could never find the part number for those things.

Please post the part number for the spacers. I think its a good idea that everyone use them.

Kevin, that's just teflon tubing I believe.. well, at least that's what I would have used if it were me

The black resistors (that are not Mills) are IRC mil-spec resistors. Very nice devices, but not cheap.

Edited February 20, 2010 by luvdunhill

[n_maher]

Looking at the hi-res version of the pic they sure just look like cut bits of teflon tubing.

[kevin gilmore]

Yep you are right, teflon tubing... Not what i wanted. What i'm talking about is .5 inch high plated tin tubes

that are solderable and have a round bump at the end so they stay put. I can get a picture of the old ones,

but no idea who still makes them.

Edit: i saw what i wanted to see, hoping someone had found those things

Edited February 20, 2010 by kevin gilmore

[spritzer]

The black resistors (that are not Mills) are IRC mil-spec resistors. Very nice devices, but not cheap.

That would make sense but somebody might be tempted to use Holco's (i.e. cheap but good) so it's better to ask.

Yep you are right, teflon tubing... Not what i wanted. What i'm talking about is .5 inch high plated tin tubes

that are solderable and have a round bump at the end so they stay put. I can get a picture of the old ones,

but no idea who still makes them.

Edit: i saw what i wanted to see, hoping someone had found those things

So something like what Stax are using on the new SRM-600?

[ATTACH=CONFIG]2697[/ATTACH]

[fierce_freak]

Birgir, have you heard the SRM-600? I've been curious about it since I noticed it was released.

[Kerry]

:) :)

Very cool stuff here! A KG designed balanced DAC - This is going on my list of things things I can't wait to build!

Nice work Inu.

A question on the spacers - I see the need on the hotter resistors, but are they needed on the diodes?

[Duggeh]

Forgive my getting lost in threads or posts and not remembering what goes where. But if theres still option for T2 PCB buy, where does one put ones name?

[spritzer]

Birgir, have you heard the SRM-600? I've been curious about it since I noticed it was released.

Nope, not yet. I was tempted to pickup one but I'd have no use for it.

Forgive my getting lost in threads or posts and not remembering what goes where. But if theres still option for T2 PCB buy, where does one put ones name?

Just drop KG a PM.

[swt61]

Are you considering building this yourself Doug?

[Inu]

Very nice and great use of spacers to elevate the parts. I'm wondering what those small black resistors are, since they look a bit like Holco's which would never work at these voltages.

Black resistors, 100 1W, 5.1K 1W, 10K 1W are MILLS MRA-5 (Mills Resistors)

1.1K = RN60D (Metal Oxide, Carbon Film & Metal Film Resistors - 846 Ohm to 1,229 Ohm)

301K(300K) = RNC60J (Metal Oxide, Carbon Film & Metal Film Resistors - 216k Ohm to 332k Ohm)

[Inu]

Looking at the hi-res version of the pic they sure just look like cut bits of teflon tubing.

Bingo!

[Icarium]

I'm back in... been a good year so far

[kevin gilmore]

All of the boards/chassis sets are now sold.

Will keep the 2 people wanting units on the overflow list should one of the

earlier people change their mind.

I could do another run of boards, 10 minimum, but the price would go up a bunch.

And i'm definitely NOT going to do any more chassis sets.

[nattonrice]

I will definitely not be dropping out!

I already reorganized my desk just to have somewhere to store the damn boards =)

[digger945]

All of the boards/chassis sets are now sold.

Will keep the 2 people wanting units on the overflow list should one of the

earlier people change their mind..