[Boatanchors] Fusing Secondaries on Boatanchor Gear

[Frank S.]

Hello to the list,

I have several BA receivers in various stages of
restoration. I am always concerned about safety and
add line fuses and 3 wire cords.  I am also concerned
about protecting the components and tansformers in the
gear which brings me to my question for the list.

I am interested in fusing the transformer secondary
leads B+ and filiment to protect against damage should
a failure occur. I am unsure how to select the proper
fuse for the B+ as I dont recall the stadard glass
fuses having DC voltage ratings. Would a 250VAC glass
fuse with the same current rating for my application
provide protection at say 150-200V B+ or is there a
calcualtion one can use to aid in selecting the
correct fuse for DC?

Thanks and 73,

Frank




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