On 27/01/2021 10:10, Brian Gaff (Sofa) wrote:
Really big powers of several kilowatts tend to use Valves still, You can get
surprisingly high powers from mosfets but they are still more fragile than
the old bottles from the abuse point of view. High powers using
semiconductors seems to mean devices parrarelled up and I just wonder what
happens to the others if one dies in such a stack?

They tend to have redundancy built in, and many seem to use hot
swappable modules and PSUs these days, so you can replace failed ones
while still continuing to operate.

--
Cheers,

John.

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