Date: Sun, 30 May 2004 00:57:26 +0000 From: "Matt Hanson" <[EMAIL PROTECTED]> Subject: Re: [LIB] 50/70 plug dimensions part# needed
From: Raymond <[EMAIL PROTECTED]>
I know it's cheating but I've had no problems plugging the L50/70 power supply (actually it's the same as several other Toshiba 15 volt plugs such as the Portege) into a chassis mount 2.5mm DC power socket (the Libretto plug seems to be a standard 3.1mm (inner diameter) DC plug you can get from your average electronics enthusiast store such as http://www1.jaycar.com.au/productView.asp?ID=PP0513&CATID=35&keywords=&SPECIAL=&form=CAT&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=651,
Okay... that page gives what would seem the correct size for the equivalent on the Tosh AC adapter: 3.1mm(ID) x 6.3mm(OD) x 10mm shaft length
That may settle the specification question for the connector on one side (AC adapter cable side). From what I see on Xin's wesbite (http://www.fixup.net/tips/battery/battery.htm) He's talking about "6.3/3.0 mm coaxial power plugs" on a Radio Shack cable.. so 3.1mm is darned close. ;-P
or at least I've been using a standard 3.1mm plug first with my L50 and now with my Portege 7220CTe when I was tapping the power line for running other things and it's had no problems ... funny how they sell the plug but not the socket).
Well, I can follow the Shogyo catalog from ( http://shogyo.com/listtypes.html?tablename=dcpower ) and find this:
http://shogyo.com/displayproduct.html?tablename=dcpower&itemnum=MJ-078N
But like all other sites I've found, it only specifies the 2.5mm pin size. I'm guessing they're assuming a 5.5mm or 6mm i.d. for the hole. This beacuse I've come up with specs of 2.5mm x 5.5mm for a lot of similar coaxial connectors.
I also see this there:
http://shogyo.com/results.html?search_type_no=656&tablename=dcpower&family=DC+Power+Jacks
It >looks< good, but not the specs for sizes they list.
The type I'm talking about is the open frame type as in http://www1.jaycar.com.au/productView.asp?ID=PS0518&CATID=35&keywords=&SPECIAL=&form=CAT&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=651 ... you might need to squeeze the 'spring' contact a little with a pair of pliers first and after you use it with a 3.1mm plug it probably won't hold a 2.5mm plug very well but it works a treat!
I'm confused. The spring there looks like it'd be able to hit the outside edge of the 6.3mm o.d. of the standard 50/70 power adapter. It already >has< a 2.5mm male shaft in the center. What would bending the spring do? I'm missing something.
P.S. As for tapping into L100/110 supplies (and some of the Porteges like the 3110), I find a standard 2-pin header (the sort you put jumper caps on in computers) works nicely if you cut about 1.5mm off the ends (and for plugging into the computer side, a 2 pin header plug filed down on the sides and with a little bit of plastic superglued to provide a polarity key works real nicely.
I'm a bit lost there too.
P.S.S. All this I'm assuming you're actually looking for the male connector (the computer side) and not the female connector (the power supply side)?
Funny trying to apply the terms 'male and 'female' to sets of matching connectors that have both male and female components. But yes, the computer side connector is what I'm after it. Ive been calling it 'male', as from what I see, I stick the plug on the end of the AC power adapter >into< it, and not the other way around. But how can you use this reasoning with something androgynous??? :-D
Especially with concentric or jacketed connectors it can get a little ambiguous but I find a general rule of thumb that you look for the smallest pin or hole in a concentric connector, if it's a pin it's male and if it's a hole it's female.
Ah so... now we're getting into the subject of absolute/dualist logic vs. relativistic/quantum logic! Where's my I Ching?
Matt
At 11:47 AM 28/05/2004 -0700, you wrote:
>Date: Fri, 28 May 2004 18:47:03 +0000
>From: "Matt Hanson" <[EMAIL PROTECTED]>
>Subject: 50/70 plug dimensions part# needed
>
>I wonder if anyone can give me dimensions or a part number somewhere for
>the male connector on the end of the 50/70 AC adapter.
>
>I've been trying to find either an inline female power connector for the
>50/70s, or any other that physically mounts inside the system. I searched
>and searched Digi Key (http://www.digikey.com/), and finally called their
>tech support, and they couldn't define just what dimensions or which stock
>connector this would be.
>
>I'm taking off across the country in a few weeks, I need to make an
>adapter cord that will accept the standard 50/70 Toshiba male AC power
>adapter plug at one end, and has the screwy 100/110 male power plug at the
>other end.
>This so I can power the 100 with my old XTend PowerEtender Airplane & Auto
>Adapter.
>
>David was great at finding the Hirose cord with 100/110 male plug on the
>Digi Key website as part number: RP34L-5PA-2SC But I'm totally confounded
>at just how he did that, as neither the tech guy there or I could find the
>standard 50/70 AC>DC male adapter plug without a part number or dimensions.
>
>So I'm back to asking here on the list. Any help on finiding that female
>connecter would be greatly appreaciated.
>
>Matt
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