Re: New assembled High Bands QDX went into smoke
开云体育I of course don’t know from start to finish how firm all of the statements are but after having been in electronic for the best part of my working career, my guess failure was most likely due to a faulty component. ?In analytical control manufacturing we would burn in the equipment for 30 hours or so before making financial adjustments prior to sending the equipment to its destination.Back then heat was generated that had to be compensated for the expected operating conditions. ?Some components at the time would change characteristics as a conditions changed…… some FAILED, and that’s why we would burn the equipment in. I still have some stuff running from the 70’s so I have to think it was built OK. When I get a new “whatever” today I assume that very little real testing & burn in has been done so I watch the processes especially for the first 30 or so hours, no smoke it’s a go ! I step down, John ?Each mistake is a learning opportunity.? On Jul 15, 2023, at 4:38 PM, mweidle@... via groups.io <mweidle@...> wrote:
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KK4ITX John