27 May
2005
27 May
'05
8:30 p.m.
Dag nerbit.
I have an IBM PC Convertible and the manual, but I am lacking the power
supply and the manual does not contain specifications (at least I couldn't
find any). Does anyone know the specs on the power supply for this?
Shanks!
--
Sellam Ismail Vintage Computer Festival
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27 May
27 May
9:10 p.m.
Yes My convertible has the power supply(AC adapter) The DC output is 15V
at 2.7 Amps. The I'm not sure of the size of the power connector but
it's the common black tipped barrel variety
I also have an unopened IBM battery which I think is for the same
machine (It came in the same IBM case)
#6820790 bar code on the box. I've never opened the convertible case to
see it's the same battery!
On the Battery itself it says P/N2684331
The good news if that is indeed a battery for the machine is that its
rated at 9.6V at 1.8 Amp/Hr and it appears it connects by a simple 2
wires to the computer. I think the battery may be too small to actually
power the laptop (although its big) but rather to keep a power state to
the computer. I think it actually stores basic in a static ram. I think
if you look through a lot of HP printer adapters, you may find one that
close.
Cheers
Tom
Vintage Computer Festival wrote:
Dag nerbit.
I have an IBM PC Convertible and the manual, but I am lacking the power
supply and the manual does not contain specifications (at least I couldn't
find any). Does anyone know the specs on the power supply for this?
Shanks!
10:14 p.m.
On Fri, 27 May 2005, tom ponsford wrote:
Yes My convertible has the power supply(AC adapter)
The DC output is 15V
at 2.7 Amps. The I'm not sure of the size of the power connector but
it's the common black tipped barrel variety
Urg! Thanks for the voltage specs but what about polarity? ;)
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
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10:49 p.m.
Vintage Computer Festival wrote:
On Fri, 27 May 2005, tom ponsford wrote:
Well looking high and low over the adapter. I could not find ANY
markings that would show the tip polarity. it might be on the jack inlet
on the computer itself, which I don't have in front of me. For some
reason I always though the tip polarity was on the inlet itself or was
indicated by the color of the tip (or was that the size indicator?) .
It's too late and past my bedtime for me to give cognizant answers :-)
Looking at the manual though, the battery pack does power the computer
for 6-10 hour normal use. Until you can find an adapter (and the right
tip polarity) you can still power it up by making your own battery pack
as its connected to the computer with a simple 2pin 2 wire connector. If
I can't find the right batteries around the house or shop, I just head
down to batteries etc, and they can always whip something up. Heck they
even put together a real nice authentic looking TOY battery for my vax
with even the plastic coating!! But usually I do it myself.A 9.6 volt @
1.8 A/hr shouldn't be hard to find.
Yes My convertible has the power supply(AC
adapter) The DC output is 15V
at 2.7 Amps. The I'm not sure of the size of the power connector but
it's the common black tipped barrel variety
Urg! Thanks for the voltage specs but what about polarity? ;)
11:55 p.m.
On Fri, 27 May 2005, tom ponsford wrote:
Didn't see any markings on the computer itself.
Urg! Thanks
for the voltage specs but what about polarity? ;)
Well looking high and low over the adapter. I could not find ANY
markings that would show the tip polarity. it might be on the jack inlet
on the computer itself, which I don't have in front of me. For some
reason I always though the tip polarity was on the inlet itself or was
indicated by the color of the tip (or was that the size indicator?) . It's too late and past my bedtime for me to give
cognizant answers :-)
Can you just put a voltmeter to it in the morning and let me know?
Thanks!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
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11:10 p.m.
From: "Vintage Computer Festival" <vcf at siconic.com>
Sent: Saturday, May 28, 2005 12:14 AM
On Fri, 27 May 2005, tom ponsford wrote:
It should only take a second to check for ground, you probably won't even
have to open the case.
Randy
www.s100-manuals.com
Yes My convertible has the power supply(AC
adapter) The DC output is 15V
at 2.7 Amps. The I'm not sure of the size of the power connector but
it's the common black tipped barrel variety
Urg! Thanks for the voltage specs but what about polarity? ;)
--
Sellam Ismail Vintage Computer
Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger
http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage
mputers ]
[ and academia at www.VintageTech.com || at
http://marketplace.vintage.org ]
11:57 p.m.
yOn Sat, 28 May 2005, Randy McLaughlin wrote:
Assume I'm dumb.
How?
:)
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
Urg! Thanks
for the voltage specs but what about polarity? ;)
It should only take a second to check for ground, you probably won't even
have to open the case.
28 May
28 May
12:22 a.m.
From: "Vintage Computer Festival" <vcf at siconic.com>
Sent: Saturday, May 28, 2005 1:57 AM
yOn Sat, 28 May 2005, Randy McLaughlin wrote:
Assume I'm dumb.
How?
:)
--
Sellam Ismail Vintage Computer
Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger
http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage
mputers ]
[ and academia at www.VintageTech.com || at
http://marketplace.vintage.org ]
Just do a resistance test between a known ground and one connector then the
other of the power socket. Zero ohms tels you that you have the (-)
connector.
Known grounds usually include the nuts of DB type connectors.
Randy
www.s100-manuals.com
Urg!
Thanks for the voltage specs but what about polarity? ;)
It should only take a second to check for ground, you probably won't even
have to open the case. 
4:33 p.m.
It should only
take a second to check for ground, you probably won't even
have to open the case.
Assume I'm dumb.
How?
7465
days inactive
7465
days old
8 comments
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participants (4)
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ard＠p850ug1.demon.co.uk -
cctalk＠randy482.com -
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vcf＠siconic.com