The loose clamping is a mere hypothesis. We haven't ascertained it yet. We can look at some heat resistant epoxy if it proves to be the case.
It is an oddity if open design that you tend to only hear of broken/blown systems rather than the working ones. Of the five hundred odd v2s shipped about 20 to 25 of them blew up their PAs. This would have been almost normal but for the fact thay we have almost never heard of a ubitx blowing up the PA in the recent times.
On 28/05/2023 5:37 AM, Ashhar Farhan wrote:
>
> As the boards that blew up were return we are finding that the
> heatsink clamps were invariably loose, this could happen only in
> transit. Perhaps we need a different and failsafe way to clamp these.
> - f
>