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GeorgeP

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About GeorgeP

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  1. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    The DIY T2 is the improved version of the Stax original. From what I understand, the newer/other versions that for example Joamat and Kerry have made are not necessarily improved versions of what Kevin did, but rather use some more affordable and more easily obtainable parts. I suspect that the interest in building this newer version will still be limited as the newer parts probably only shave $300-$400 off the parts cost of building the T2 - and since it would still remains a mega-buck build, what is an extra $300-400? And it is inevitable that those newer parts will soon be hard to find as well.
  2. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    Guessing that is the case because if you want to build a T2, you can with the existing boards (albeit with a higher parts cost). The only thing I could see that might be worth while updating would be the power supply, but even then.
  3. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    Joachim, let me know if you need any j79s, as I have a healthy supply.
  4. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    Guessing all the (fun) experimentation has over time totally conflicted that J79...
  5. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    They were in the gerbers, but Kevin might have corrected them. That said the error was simple to correct (and is documented in this thread). I do have one of the blue amp boards before the correction - almost too high quality with 4oz copper and very thick boards (you need a good iron to work on these boards).
  6. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    Yes, his first run full-size boards were not the greatest if you had to do any desoldering.
  7. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    The lil knight shrunk board has one or two small board errors that can be easily fixed, but the amp board really isn't much smaller than the original (about 1/2" smaller), and the psu board is basically the same as the original. Also they use the same parts as the original diy boards.
  8. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    hmmm, I thought that that boardset was a work in progress and never completed... maybe Kevin will recall.
  9. GeorgeP

    Dynalo Mini enclosure group buy

    Added just now - thanks.
  10. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    Yeah, that has fallen aside a bit. Would SumR be ok with you, because I was originally thinking of doing one with Paul Houlden, but apart from the high shipping cost (I recalled he wouldn't ship more than two sets in one box from England to Canada), I did a buy with some other folks a couple of years ago and we were about 6 sets or so and the savings was only about $15-20/set. As well, I had him make me a traffo for the Carbon that became the loudest buzz monster I ever heard after a couple weeks of use. That said, I never had any issues with his T2 traffos, so don't know what to make of it.
  11. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    Just checking if there is any interest in the original Kevin Gilmore boards. The boards fit the original KG DIY-T2 chassis perfectly (group buy for chassis was a little while back). Will be using Custom Circuit Boards. Not looking to do a big group buy - just looking for 2-3 additional interested folks to get pricing to be reasonable (for 6 boardsets it is $204.16/set, for 7 it is $189.30/set). Will be placing the order in a week or so. So just shoot me a pm if you want a boardset. Edit: Order placed.
  12. GeorgeP

    KGSSHV Carbon Build Thread

    Newark has a the SIC MOSFETs in stock.
  13. GeorgeP

    The Headcase Stax thread

    If you are looking to spend in the neighborhood of $5k, then go BHSE (which is about $6k or thereabouts, all in). If you want to spend less than $4k then look to the myriad of KGSSHV carbon builders out there, or pick up a used one for even more savings. But none of the above answers are wrong (except maybe getting the T8000).
  14. GeorgeP

    The ultimate DIY? A Stax SRM-T2!

    I suppose there are two possibilities - 1) your JJ tubes are out of wack and you set the batteries taking into account their faults (and the sylvanias are fine), or 2) you need to look for a new tube reseller because this one is no good. I find a lot of resellers only test one side of the dual-triode, and I have seen some dual triodes measure new on one side and poor on the other side - this would cause problems in the t2. Not saying that is what happened here, but what you described shouldn't happen if the tubes are good. If your tubes are good, you should be able to switch them without having to make any adjustments to the batteries. The only time I have had an issue was when the two halves of the dual triode were not reasonably close. And in answer to your email, I have had bad tubes in my t2, but nothing where the bad tube took out any transistors.
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