Jim Schissler wrote:

> I building the 12v-18v converter from Dan Medley's design. I'm at work and
> want to drop by the electronics parts store on the way home to buy parts i
> still need, but I need some information that someone may be able to provide.
>
> I need to know the size of the plug (jack?) that is on the end of the
> 115vac-18vdc converter cord that comes with the LX200. The cord is the one
> on the 18v side and about 12" long.
>
> Thanks - Clear Skies (glub,glub)
> Jim Schissler

If you mean the plug that goes into the LX200 socket, it is called a battery
connector, or battery plug. There are a number of sizes, perhaps 6 or 8. The
socket on the LX200 takes a plug that is 5.5 mm outside diameter and 2.5 mm
center conductor. Do not get the 5.5 mm OD with the 2.1 mm center pin as it
will not fit.

The little DC power supplies that radio shack and other have have plugs like
these on them.
You can get the plugs separately of course. They are cheap, wretched little
things which are unrelaible and easy to pull out accidentaly since they have no
locking mechanism. They are also nasty to connect wires to.

Unfortunately they are the ones used by many electronic items that take an
external DC power supply. The only plug that competes with them for low quality
is the ubiquitous RCA audio connector.

Doc G <http://www.mailbag.com/users/ragreiner>

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