cspirou

Thanks! Very much appreciated. I don't see it posted. Does it take awhile?

For source switching I found this: http://gilmore.chem.northwestern.edu/baseboardbal3.jpg But I don't see any files for it. Have you made any progress on it?

To power 2 ubal/bal boards and 4 diamond buffer, is one GRLV enough?

Updated the TKD spreadsheet, let me know if there are any weird math errors. TKD likes to deal in yen, I use euros and dealing in dollars would mean that I would have to convert between 3 different currencies to make the purchase. Way too complicated, so all prices have been changed to euros. Also learned my lesson with the Song Huei GB and I have included a 21% VAT, plus 2% to deal with currency fluctuations. Any discrepancies will be credited to your shipping. Prices are based on the last quote I received so consider them estimates for the time being. Final prices will be updated right before I request money for the order. When it comes time to pay, I'll send a request through PayPal or TransferWise. I advise using Transferwise if you are using dollars or anything that isn't euros because they give reasonable rates and low fees. On the day of the order if I haven't received your money then your pots won't be included in the order. Also let me remind you that there is no minimum order amount on any item with TKD. So if there is an item that I haven't listed in their catalog that you want, let me know and I will add it. If you have trouble editing the spreadsheet then let me know what you want and I'll add you.

Most US/EU people have received their stuff by now. Just the people in Oceania haven't reported yet. Anyone else received their pots and haven't mentioned it yet?

I'd like to build my own transformers. Where can I source laminations and bobbins?

Besides wear and engraving it looks damn near identical. Hope they perform similarly.

For a preamp I have the following plan: input -> (ubal/bal) -> digi.attenuator -> diamond buffer -> output What value attenuation do I need to use?

Added my name. Ordered a bunch of ubal - bal boards because I saw the small size and I assumed it would be pretty cheap.

What's the gain on the ubal -> bal boards?

Great! How are they compared to Alpha pots?

@gepardcv-the yellow column that says "remainder" is everything that you owe me. I can post or PM the amount too if you would like

The system always find you! I just wish I would get charged at the point of transaction instead of 2 months later.

Doh! Ok so not entirely finished. Seems like running my very first group buy is a bigger learning experience then anticipated. I just received a bill for the VAT on the Song Heui pots. I forgot to incorporate VAT on the price of the pots and I have added this extra cost to the spreadsheet. It shouldn't be that much more for most of you but in total it is a significant cost for me, so please try to pay when you receive your package.

Everything that I can ship has been shipped. Consider the Alpha Pot group buy finished. If I get something bounced back because I screwed up on customs, I'll let you know and pay for reshipping myself. Anyone with experience with the Alpha pots please let us know how these compare and if they really are the same. I thought they measured pretty well. This means that I can focus on the TKD group buy. https://docs.google.com/spreadsheets/d/1qq-ZR84X_Ik1KyHVINC6cdwdEbZ-HRh2Wf2VVBJZBkw/edit#gid=1096418962 Good news about delaying this is that the EUR/USD has gotten stronger vs the JPY, which should mean that these items should be cheaper. I was considering closing it now however sbelyo has a group buy going on with the Dynalo Mini using TKD pots. The quad pots aren't widely available so I'd like to keep this open until the other group buy closes. However if there is enough protest I can close this one now since it's already been open for awhile. My measuring/shipping setup is much more streamlined now so I promise a quick turn around time. Or else I'll just eat shipping fees again. I believe there's also a lot of mini boards with Alpha pots out in the wild. Currently gathering interest to see if I should hold a group buy for bulk orders of the Song Heui pots to reach the 1000 MOQ. If we get to 500 MOQ I'll send them a message to see if we can order under minimum. Since the order will be so large I will do zero testing and just ship them out. The trade off is that for the price of one TKD pot you can get multiple Song Heui pots. Also thanks for letting me help you guys out with your projects. This is a great community

no need to post the attenuator board. I got one from sorenb. I believe he has more if anyone else needs any. Although I wouldn't mind if you can get this controller board.

Is there a way to donate directly?

more packages shipped today for everyone that has paid so far.

It looks like the buffer is single ended. So would you need 4 diamond buffers for 2 balanced channels?

Everyone that has paid so far has had their packages mailed. Let me know when you receive them and the condition. The shipping was a bit lower then I thought but I think it's because some intern was working and forget to weigh them and posted everything as a minimum weight package. Hopefully it doesn't get redelivered back to me. My discount is still below the shipping price for most of you. For those that paid a bit more it's only by a dollar or 2. Whatever excess I might have will be donated to Head-Case but if this is a big enough issue for you then I can refund the difference.

@Pars-correct. Some people still owe me associated fees and the remainder includes that. People with zero (or negative) are in good standing.

Looks like I won't need sbelyo to repackage anything for US/CAN. For most people the number of pots is low enough where this is considered a small package, which is priced a little bit above a letter. The savings for repackaging are trivial so it's better to ship direct. The spreadsheet has been updated with the discounted shipping prices. If you didn't PM me your address then I am using the address I have through paypal so be sure it is correct. The prices I set are with no insurance or signature. If you need something fancy or with faster shipping then please let me know right now. My paypal email is in this post: If you are in the EU and would rather pay me in Euros directly then you can send it to a different paypal account I use for Euros. Send me a PM and I'll let you know the address or I can just send you an invoice. The exchange rate is close enough where you shouldn't bother converting and just consider the price I posted as the price in Euros. You should still come out ahead because you'll be avoiding the paypal conversion fee.

Love Mathematica. If it's too pricey and you don't need to do heavy computation then I would just get a Raspberry Pi 3 for $40. It's free with Raspbian. Otherwise I like using Matlab, but I should really learn how to use Octave.

Ok so little update. While I have been busy there really is no excuse for me to be sitting on these pots for this long. To make up for it I will eat up some of the shipping costs. Everything has been tested and is packed up ready to ship. For the US/Canada everything will be shipped to @sbelyo and he will redistribute from there. Everything will be addressed and packaged already so all he needs to do is weigh and ship. If you would like to receive your pots sooner I could ship them directly to you, but just know that this is likely to cost $20 or more. I will also try to work out a similar deal with Aus/NZ. Of course for the EU I'll ship everything myself. This should be somewhere between 5 - 8 euros each. Thanks for your patience.

Sorry about that guys, I am still here. Was away a bit for the holidays. another post coming before the end of the day.