[time-nuts] CSAC State of Play

[Bob kb8tq]

Hi

Root cause (as mentioned earlier) seems to be a problem with the seal on the
inner “magic guts” of the device. There are units that seem to run on and on forever
with no issues, so it’s not a 100% sort of thing. The problem goes back to fairly
early CSAC production lots and seems to have been a tough one for them to 
take care of. 

We had some early CSAC units die that way and they were replaced without much hassle. 
They had not seen any sort of extended (as in weeks / months) high temperature 
exposure. They had been through standard testing which would take them over the
entier temperature range. While the failure mode *could* have been the same, there is
no way to be 100% sure. 

Bob

> On Jan 11, 2021, at 8:36 PM, Nigel gm8pzr via time-nuts <time-nuts at lists.febo.com> wrote:
> 
> A few years ago SA45s CSAC modules were all the rage, and I was more than happy to acquire a few
> as fallout from a UK MOD project.
> 
> It wasn't too long after though that reports were suggesting earlier failures than expected, but I can't for the life of me remember why.
> Something underwater does come to mind, a long term project that wasn't perhaps as long term as expected, either way someting went pear shaped, anyone have any idea of what it was and the current state of play?
> 
> Nigel, GM8PZR
> 
> 
> 
> 
> 
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