Re: QCX+ Audio Eventually Fades Away
The PCB already *IS* double sided and is a professional quality FR4 PCB with through-hole plating, solder mask, silkscreen, the works.
The Si5351A you buy locally will I assume, be the same quality as the one I supply in the kit. There is only ONE source of Si5351A, which is SiLabs. I buy my reels from Digikey, Mouser and Arrow (depending who has stock and a minor difference of a cent or two in price).
I am not aware that any of the components have quality issues, but for sure nothing is 100.0%... and one of the perils of producing a kit is that you have no opportunity to test the finished product before shipping. Because it is the customer himself who finishes the product.
As Howard sad entirely correctly, the first instinct of most people with a problem, is to suspect defective components. Indeed, sometimes there really IS a defective component. But it's 10x more likely to be a construction error.
73 Hans G0UPL