dennis@home wrote in
web.com:

Ohm meter and visual. The Ohms reading indicates it has resistance,
so the filament must be intact, and it looks intact too.

JD


How much resistance?
A working 20A fuse should read pretty close to zero with an ohm meter.

Apologies; I meant to say it has "very low resistance" (as opposed to the
very high resistance of a blown bulb).

JD