[Amps] SB220 Meter blown

Paul Christensen w9ac at arrl.net
Sun May 17 20:05:30 EDT 2020


>"Also a 2nd  HV  fuse..in series with just one leg of the  secondary of the  plate xfmr."

Jim,

Just curious as to how you're implementing the HV fuse on the HV XFMR secondary to prevent it from blowing during the initial inrush of the filter cap charging (assuming C input).  Obviously, step-start in the primary is going to be a big factor but is that enough to keep a useful size fuse from blowing during the initial inrush?

Paul, W9AC



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