[R-390] RE: 390A relay problems

Bob Young youngbob53 at msn.com
Sat Sep 29 12:38:05 EDT 2007


>
>Don't forget the possibility of multiple pathologies.  Could be a selenium 
>rectifier starting to fail plus an inrush limiter that is too big for the 
>job.
>
>Of course, the current limiter could do it all by itself.  Remember, an 
>inrush limiter has a high-ish resistance cold, and depends on the load 
>current to keep its resistance low during operation.  Macho types who 
>select a limiter rated for a much greater load than the actual load "just 
>to be sure" can end up being too clever by half, as the actual load won't 
>keep the current limiter's resistance down where it belongs.
>
>Best regards,
>
>Don
>

Hi Don

>Perhaps it is too big?, it's a 300 watt limiter. I also notice if I switch 
>past standby and go right to AGC, it immediately pulls right in,

Bob
KB1OKL

>




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