what name are those plugs?

What is the name of those plugs that you see at the end of most laptop power supply? It looks like two round concentric steel cylinder wrap around each other thereby forming the +voltage and -voltage source for the laptop.

Where can you buy some blanks? I am looking to build a replacement laptop power source, I have the right voltage/amp but need the correct connector going into the laptop.

These plugs are what we call 'highly standardized' - there are about a dozen or so standards. Radio Shack has many of them.

Some call them "barrel connectors"

I've actually been to RS looking for one, and the drone actually had a string of comparison connectors. (kind of like a very long charm bracelet.) Take the laptop in, and start trying connectors until one fits. Buy that one. :-)

Cheers! Rich

No, they don't. A "barrel connector" is one that you poke a wire into each end and crimp them in. Also known as a "barrel splice", but I have seen them called "barrel connectors", like at the hardware store.

Cheers! Rich

Obviously, some do:

"Barrel connector" is so generic that it has no useful meaning: You will find as many definitions as there are tech diciplines:

I wouldn't call Rich's gizmo a "barrel connector" or a "barrel splice". I'd call it a butt splice.

And your absolute expertise derives from ....?

This is a big land, with many cultures. Tissue; Kleenex. What is a milkshake in Indiana is a frappe in Massachusetts, where "regular" coffee has milk or cream in it. There's soda and pop. Also sodapop. Travel some, Rich, and learn.

OK, three corrections in one post! Guess I can take three days off now. ;-)

(actually, I already knew about the butt splice; just had a minor lapse of attention, aka brain fart. :-) )

Thanks! Rich

power

I liked JeffM's correction(s) better, but thanks. :-)

Cheers! Rich

Rich Grise wrote: (snip)

milkshake

Always happy to oblige. ( It's non-fattening. ;-) )