Hi All,
Just finished with the mods for a TL-922 and thought I would pass along a
tip.
Raychem now has 250 volt poly fuses in several usable values. These are
self resetting thermal fuses that are common in computers these days. I
installed one in the 110 volt DC supply to protect the filament transformer.
Should work in the SB-220 as well.
These are available in DigiKey.
Anybody see a problem with this type of protection circuit?
Steve
KT4FY
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