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Group Build: Dynafet

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Hrm I need to think about how to divide up my treasure trove.

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  • Did some work on mocking up the chassis and getting into a more listenable state. I will need to get aluminum top/bottom and rear panels for this (not using the steel ones that it came with). I'm also

  • Finally got around to casing this (also posted in the What are you building thread. Needs a bit of wiring cleanup, and the transformer needs to get bolted down, but sounds great.  

  • Got both boards up and running with mods 1 and 2 above. Ran RMAA on it at 150mA, 100mA and 75mA bias. I think 150mA is probably the best. See what any of you think of the plots attached. Als

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Yes, it is perfect! :)

The only thing I would ask you to ship the kits to Chris (Dreadhead) address, since I am out of town next week. I will ask him to send you his address again just in case you don

  • Author

Boards arrived today.

The only thing I noticed, which isn't a huge deal, is the mounting holes aren't through-plated. I looked into this, and most fabs require all holes to be through-plated and upcharge if they aren't. In the case of where the prototypes were done, PcbFabEx they automatically through-plate all holes, unasked, so this is probably why we didn't notice... or perhaps Jacob did this on purpose with the final files, who knows.

Anyways, they look rather nice. Pics later!

Yes, it is perfect! :)

The only thing I would ask you to ship the kits to Chris (Dreadhead) address, since I am out of town next week. I will ask him to send you his address again just in case you don

invisicaps FTW.

I see it now: Invisicaps for the ultimate in neutrality. Nothing gets between you and the music.

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I see it now: Invisicaps for the ultimate in neutrality. Nothing gets between you and the music.

however, they sound best when bypassed with polystyrene caps.. that's my secret recipe.

Am I correct that the board is a single channel?

So two for stereo and four for balanced?

What config. are you building Marc?

Am I correct that the board is a single channel?

So two for stereo and four for balanced?

Correct

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Getting there guys.

Pars, your package went out today.

I am planning on having all but Team j4cbo parts sent out on Tuesday. I need to do more matching to get their parts ready and the chances of me having time this weekend are pretty slim. Give me a few more days guys :)

I have decided to include 10% extra 2SA1145/2SC2705 in each kit. I figure these are the most likely to go (I blew one and so did digger945). This is considering that everyone basically has double the FETs anyways needed for a "Dynahi-scale" build. I'll include a modest upcharge for this, at the tune of $0.50 per board. I'm considering adding an extra dual-heatsink per builder as well, so they have something to practice on. It would add a few dollars ($2.50 IIRC), but I think it might be worth it. I'll start a build thread at some point and document the process, once I find someone to help take pictures during the 5 minute curing time.

Packaging will be a few dollars per order as well, as there are copious amounts of ESD bags, bubble wrap, tape, markers and other miscellany involved. I have a single receipt from OfficeMax that I'll simply divide down the middle.

I will be sending everything via USPS Priority with Delivery Confirmation using flat rate boxes.

For Team Spain, I am probably sending things via Express (EMS) since it seems far too great of a risk to send it via first class mail, and Express is the only method that guarantees tracking door-to-door. I think this is best, but feel free to chime in.

I think that's it.

Thank luvdunhill :) I'm sure the rest of team j4cbo appreciates it as much as I do :) We are in no hurry until hifi2000 is settled.. we have a quote without shipping that I'm working on checking over but the cost for chassis work has gone up significantly from what was mentioned...

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Vlad/Chris, Silvio, KG, Peter, Naaman, Renato:

I just sent your packages. You should have a PayPal request for the remaining balance, as well as a USPS Priority Mail tracking number in that very same e-mail.

Vlad/Chris, Silvio, KG, Peter, Naaman, Renato:

I just sent your packages. You should have a PayPal request for the remaining balance, as well as a USPS Priority Mail tracking number in that very same e-mail.

:dan:

Thanks for the quick shipping Marc, but you could have waited til today to ship! And thanks for all of your efforts in this as I am sure it has taken up a fair chunk of time and worry. :dan:

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worry.

that part isn't quite over until we have all the amps up and running :D

Erm, the kit just arrived here, looks very sexy :)

Digipete was supposed to be the recipient ;)

I got mine safe too! Thanks!!!

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If there are any special instructions, address changes, etc. please let me know as soon as possible. Honestly, I'm not exactly sure how everything is grouped for the multiple personality builds, so sending a PM anyways my way won't hurt.

Erm, the kit just arrived here, looks very sexy :)

Digipete was supposed to be the recipient ;)

oops! At least I gave fair warning though :)

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