[Boatanchors] OT power xfmr protection

[J. Forster]

It sounds like you are trying to protect the iron in case of a filter cap
failure.

I'd make sure the fuses are of the correct rating and type (fast or slow
blow) and leave it at that.

If the fuse rating is not known, I'd measure the current under operating
conditions and pick a slow-blow type about 10% to 20% above the normal
current draw. If a cap goes short, you may lose the rectifier, but not the
iron.

-John

==============

> Need some ideas here. My brother has an old Seeburg jukebox and
> someone told him he better get the xfmrs some overload protection.
> This thing does not have a single power supply. Each audio amp (R-L)
> has it's own power supply.
>
> I thought about getting him those overcurrent relays for the
> secondaries and the primaries already have fuses. Maybe just the old
> fashioned crowbar would do the trick. Zeners would be useless at those
> voltages and an SCR would be a bit of overkill.
>
> What are your thoughts?
>
> 73, Dick KF4NS
> St Petersburg, FL 33714 USA
> Keep The Glow!
>
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