Tony Duell wrote:
Personally I regard them as about the most
dangerous thing around.
I've yet to see one with proper mains fusing, most don't have output
current limiting, and so on.One common type sold in the UK has a
4-way cross-shapped plug on it (3.5mm jack, 2.5mm jack, 2.1mm coax,
2.5mm coax) with separate 1.3mm coax ('Walkman' plug) and a 9V
battery clip on the same cable. It's very easy to get a
short-circuited output if those conenctors touch each other.
It's even more "fun" when the 4-way is plugged into the power jack on a
machine, and the 9V connector wipes against, say, an edge connector.
Instant fried chips, and not the edible kind.
That's pretty much how my Jupiter Ace got wrecked (and speaking of
which, I *still* haven't managed to get in touch with the guy who was
*supposed* to be repairing it....)
Then there was the customer who plugged his power supply in to the _back_
of his 64, in the only socket where it would fit -- the video connector.
Funny how that works sometimes...