8 May
2001
8 May
'01
9:03 a.m.
Well since it appears I'll be holding on to this calculator, and I've
verified that it does indeed work if I kludge up a battery pack. Does
anyone have a spare HP battery pack I could buy/trade for? It doesn't
particularly matter if the pack is dead, we can rebuild it :-)
--Chuck
8 May
8 May
10:24 a.m.
I have an HP-21 and a 25C. For over 20 years, I've used a slightly modified
battery pack, modified only in that the individual NiCd's are removable and
easily replaced. This was done in about 15 seconds with an Exacto knife. The
batteries are easily exchanged if they go south, but I often use alkaline
batteries if I really need to, with no ill effects yet.
Dick
----- Original Message -----
From: "Chuck McManis" <cmcmanis(a)mcmanis.com>
To: <classiccmp(a)classiccmp.org>
Sent: Tuesday, May 08, 2001 3:03 PM
Subject: WTB/T: hp-21 battery pack anyone?
Well since it appears I'll be holding on to this
calculator, and I've
verified that it does indeed work if I kludge up a battery pack. Does
anyone have a spare HP battery pack I could buy/trade for? It doesn't
particularly matter if the pack is dead, we can rebuild it :-)
--Chuck
10:50 a.m.
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11:05 a.m.
I have an HP-21 and a 25C. For over 20 years,
I've used a slightly modified
battery pack, modified only in that the individual NiCd's are removable and
easily replaced. This was done in about 15 seconds with an Exacto knife. The
batteries are easily exchanged if they go south, but I often use alkaline
batteries if I really need to, with no ill effects yet.
Dick
I did the same thing with my sister's HP21 (which I used, gave back and
she lost 8-()
Boy I wish I still had that calculator.
Bill
---
Bill Gates is a Persian cat and a monocle away from being a
villain in a James Bond movie -- Dennis Miller
bpechter@shell.monmouth.com|pechter@pechter.dyndns.org
6:17 p.m.
I've had lots of different calculators over the years, and these two are the
ones I use now. It's odd, since I really never learned to like RPN types. It
must be the handy size that keeps me using 'em.
Dick
----- Original Message -----
From: "Bill Pechter" <pechter(a)bg-tc-ppp74.monmouth.com>
To: <classiccmp(a)classiccmp.org>
Sent: Tuesday, May 08, 2001 5:05 PM
Subject: Re: WTB/T: hp-21 battery pack anyone?
> I have an HP-21 and a 25C. For over 20 years,
I've used a slightly modified
> battery pack, modified only in that the individual NiCd's are removable and
> easily replaced. This was done in about 15 seconds with an Exacto knife.
The
batteries are
easily exchanged if they go south, but I often use alkaline
batteries if I really need to, with no ill effects yet.
Dick
I did the same thing with my sister's HP21 (which I used, gave back and
she lost 8-()
Boy I wish I still had that calculator.
Bill
---
Bill Gates is a Persian cat and a monocle away from being a
villain in a James Bond movie -- Dennis Miller
bpechter@shell.monmouth.com|pechter@pechter.dyndns.org
16 Aug
16 Aug
6:21 a.m.
Hello -
I have a 29C, with recharging problems. I'm hoping the battery packs
are similar. How did you get the back cover on the battery pack to stay
on after you cut it off?
On Tue, May 08, 2001 at 07:05:34PM -0400, Bill Pechter wrote:
--
************************************************************************
* * *
* John Ott * Email: jott(a)hamming.ee.nd.edu *
* Dept. Electrical Engineering * *
* 275 Fitzpatrick Hall * *
* University of Notre Dame * Phone: (219) 631-7752 *
* Notre Dame, IN 46556 USA * Fax: (219) 631-9924 *
* * *
************************************************************************
I have an
HP-21 and a 25C. For over 20 years, I've used a slightly modified
battery pack, modified only in that the individual NiCd's are removable and
easily replaced. This was done in about 15 seconds with an Exacto knife. The
batteries are easily exchanged if they go south, but I often use alkaline
batteries if I really need to, with no ill effects yet.
Dick
I did the same thing with my sister's HP21 (which I used, gave back and
she lost 8-()
Boy I wish I still had that calculator.
Bill
---
Bill Gates is a Persian cat and a monocle away from being a
villain in a James Bond movie -- Dennis Miller
bpechter@shell.monmouth.com|pechter@pechter.dyndns.org
8:50 a.m.
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9:02 a.m.
Hello -
I have a 29C, with recharging problems. I'm hoping the battery packs
are similar. How did you get the back cover on the battery pack to stay
on after you cut it off?
On Tue, May 08, 2001 at 07:05:34PM -0400, Bill Pechter wrote:
> > I have an HP-21 and a 25C. For over 20 years, I've used a slightly
modified
> > battery pack, modified only in that the individual NiCd's are removable
and
> > easily replaced. This was done in about 15 seconds with an Exacto knife. The
> > batteries are easily exchanged if they go south, but I often use alkaline
> > batteries if I really need to, with no ill effects yet.
> >
> > Dick
>
I just cut the plastic between the batteries enough so I could
screwdriver out the AA batteries one at a time and replace them with
the standard AA nicads.
Bill
8287
days inactive
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days old
8 comments
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participants (7)
-
ard＠p850ug1.demon.co.uk -
cmcmanis＠mcmanis.com -
edick＠idcomm.com -
jott＠mastif.ee.nd.edu -
pechter＠bg-tc-ppp1491.monmouth.com -
pechter＠bg-tc-ppp74.monmouth.com -
rigdonj＠intellistar.net