Question About Harry's Gift To Mr. Weasley

[Carol]

Tonks wrote:
> 
> OK, I think we are about the same age, but you are in England. I 
remember fuses. You took the old one out and screwed in a new one. IF
I remember right, you could tell when the old one was blown because a
little metal thingy in it was melted and pulled apart. <snip>

Carol responds:

Something like this, right?

http://farm1.static.flickr.com/157/425978902_4c23391b88.jpg?v=0

That's the kind I remember, too. No wire involved. You just unscrewed
the blown fuse and replaced it with a new one. Not quite as easy as
flipping a tripped circuit breaker, but not difficult.

I wonder if JKR meant an automotive fuse. I found this photo article
by an American trying to change a fuse in a (British-made) Jaguar. It
looks like a nightmare:

http://www.bernardembden.com/xjs/refusebox/index.htm

Didn't TVs also have fuses in the old days? Can't remember any wire
being involved, though.

Carol, who has never been good at electronic or electrical stuff but
can change a light bulb