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"The Wiener" TPA3118 amplifier, group buy #3 + "Wiener Pro" prototypes.

Running behind on parts. Just ordered $937 CAD worth of Coilcraft parts for the PBTL and Pro cards. Got 8 extra 10uH inductors and 8 extra 15uH inductors for building extra cards.

Now to count my stash of parts and get the Mouser order done, and start organizing the shop...
 
Tell me about it. 45 stereo cards, 18 PBTL cards and 23 Pro's. Total of 86 cards. Plus more to handle failures. I've got stencils for all of the cards so I can toaster oven reflow the works of them, which will save a good bit of time.

I'll get your card mailed out when I get the microcontroller code done.
 
gmarsh, let me know if you need any help, testing etc. I have a AVRisp-mkII to program parts and the compiler env setup.
I have yet to pay you for 2 Pro' pcb's and uC's. Will also need the coils. I can order parts from Mouser if you supply the BOM or share me in on the Mouser project BOM like we did last time with Weiner.
Interested in performance vs Weiner and other references, listening tests and measurements.

Cheers
 
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start organizing the shop...

Always the worst part 🙂 Congrats on the progress, excited to hear how the bring-up goes and eventually hear the Pro itself!

I've been doing SMT prep in my basement lab to assemble my and Loafimus' boards. Solder paste sorted (Kester NXG1) and reflow oven built (ControLeo2 based kit from Whizoo.com), image attached.

Once you have the design vetted, could you send out the paste layer Gerber so I can get the OSH Stencil order in?
 

Attachments

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Wiener Pro BOM is attached in PDF format. I've e-mailed out the Mouser BOM to facilitate parts ordering, but it doesn't have the ref designators.

One thing I must warn: I haven't actually built one of these cards yet 🙂 Got my fingers crossed that the design works.
 

Attachments

Wiener Pro BOM is attached in PDF format. I've e-mailed out the Mouser BOM to facilitate parts ordering, but it doesn't have the ref designators.

One thing I must warn: I haven't actually built one of these cards yet 🙂 Got my fingers crossed that the design works.

Awesome - got my cart loaded up with ref designators!

Happy to be an early adopter and understand that the design is subject to verification/change/surgery.

Question: the pdf has a small discrepancy for R44-R46, R50, R51, R55. Should they be 200ohm or 150ohm?

BK