Eeyore wrote:

"Ron(UK)" wrote:

Eeyore wrote:
"Ron(UK)" wrote:

You're never going to be able to protect against stray metal object clattering
around inside,
Quite !

and I`m sure the original designers never gave it a thought.
In which case it shouldn't have a CE sticker.

I would imagine that the stray object originated inside the amp,
probably a panel screw or captive nut never secured in the first place.

I thought the OP said something did actually fall inside ?

Maybe


How often you you pick up an item of gear and hear something loose
rolling around inside

Thankfully not too often. I do recall one time about 30 yrs ago when I withdrew a
Bulgin mains lead and the earth prong of the equipment connector came out with it
though ! They were just held in place with screws !

They were held in by the same screw that held the cable iirc

I once found the entire tip and centre core of a jackplug neatly welded
twixt power transistor and heatsink. Presumably some clown snapped off
the plug, so pushed it right through with another.

The one thing most designers fail to allow for is the stupidity of the
end user.

Ron(UK)