What is this wiring diagram symbol?

It's part of the power supply circuit and probably has something to do with the wall wart power supply, but I'm not confident enough in that explanation to move ahead with it.

Picture of What is this wiring diagram symbol?
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lemonie6 years ago

It's a power socket, "barrel". The outer is -ve / GND and +9V is the centre.
For one of these / or one end of.

L

mole1 lemonie6 years ago
If you look at bunch of electrical stuff in a store, you'll see that some things are configured the opposite way.. with the negative on the outside and the positive on the inside. It matters.
So if you're trying to substitute or replace something, those symbols have to match.
lemonie mole16 years ago

I said "The outer is -ve / GND and +9V is the centre"
You said "the opposite way.. with the negative on the outside and the positive on the inside" - that is the same, not opposite.

L
mole1 lemonie6 years ago
Oh. Sorry, Lemonie. I thought the image meant that the inside was negative and the outside was positive.  Wrong, huh? 

Ignore me, Applesnacks. ...   <mole1 scurries from field>
lemonie mole16 years ago

Easily done.
(there's a little + on the inner connection)

L
mole1 lemonie6 years ago
OK, I see the +... but what's the gray line with the little - going to the inner circle?
(I've only seen these things embossed on plastic... black on black.) Bet I'm missing something REALLY basic here.
lemonie mole16 years ago

The gray line is an electrical connection, you use the symbol in circuit diagrams.

L

E.g.
t.bmp
mole1 lemonie6 years ago
Aha! Thanks, Lemonie!