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Hi all, Some more updates. I'm waiting on a few more component samples from various suppliers to reach my OEM and then I'm going to get a big shipment of them to the USA for me to evaluate and develop with. Just in AC power cables alone, I have samples from about 10 different companies... I...

Some updates for today. I am replacing the overcomplicated TPS63710-based -5V supply with the LM2776 inverting charge-pump as used in the Jammafier. I was concerned that the 0.2A that the LM2776 can supply would be insufficient, but after seeing a lack of reports of that and confirming that...

Some updates. I am getting custom step-down audio isolation transformers made to lower the BOM cost (the transformers were by far the most expensive thing on the whole board) and also simplify the design, removing the need for the attenuation resistors. I am also starting to complete orders for...

Hi, it's stilll ongoing! Some IRL stuff happened that I had to drop everything to deal with, but I'm getting the ball rolling again. I've been thinking about the design a bit, and I'm going to add a few things to make the design even more robust and failsafe. Updates to come!

For the record, do you remember where that power supply came from? Maybe add a picture too. Others may unwittingly be using similar fakes. I've already decided to go forward with the single-rail supply, FWIW. It will reduce total purchasing cost and eliminate the variable of poor-quality ATX...

Somewhat redoing the design again because I'm migrating to a new CAD program and I am moving to a single 12V supply with onboard regulators. I plan on selling Mean Well GST60A12-P1IR as well as a good quality lower-cost Chinese PSU from Alibaba as options. I am interested in offering the...

If you don't mind, can you give me some more details on what specific board and PSU you used, and what type of noise you mean? I would like to be aware of any pitfalls that exist. Mean Wells are specified with fairly low ripple, but if the specific supply is not suited for the load maybe that...

I'm getting close to putting the finishing touches on a redesign. How would people feel about me bundling a multi-rail Mean Well PSU with a plug on it (a-la the Cbox Mini) and raising the price by ~$40? I was planning on charging somewhere around $100-120 for the fully assembled board so that'd...

Thanks for posting all of that. What chip does the Viletim board use? I would prefer to integrate it in the redesign. I'm going to get started on the schematic in EasyEDA. Edit: Found it (link). It's a SGM8052 op-amp. Here's a hasty attempt at reverse-engineering it based on the photos since it...

The order finally completed. Strangely, I was only charged $50. Here are the files, enjoy! If you use them and can afford it, please consider making a contribution to share the cost. You can do so via Paypal (link). I will remove the donation link if I receive a total of $40 (the $50 I paid...

Since many people are wanting it, I have paid for the Pad2Pad->Gerber conversion. I will post the files once the order is completed.