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HP-25
01-08-2018, 07:17 PM (This post was last modified: 01-08-2018 09:48 PM by larthurl.)
Post: #1
HP-25
Just for fun, I just finished reading the HP-25 manual as provided in the excellent Thumb Drive contents from the HP Museum. I don't have a working HP-25, but I remember using one in the late 1970s.

What an enjoyable read. It brought back so many memories and one thing stood out - the excellent writing and examples of HP. I think few if any companies could match the HP documentation from the 1970s and 1980s. Just superb.

And what a great machine. I never owned one, but my father did after moving up from an HP-35 initially. Interestingly, I had an HP-65 when he had the 25, but I clearly remember admiring the capability of the HP-25, the packaging and the owners manual.

Just wanted to share a thought which I know has already been echoed by others.
btw, I still have his HP-25 but it is dead. I don't have a charger for it and am not sure the battery is still good. Hopefully, the calc wasn't ruined by running it on AC without the battery. In the last 10 years of my father's life, he used an HP-11c. I have that and it is still going strong.

......Art
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01-08-2018, 08:11 PM
Post: #2
RE: HP-25
(01-08-2018 07:17 PM)larthurl Wrote:  <...snip...>
btw, I still have his HP-25 but it is dead. I don't have a charger for it and am not sure the battery is still good. Hopefully, the calc wasn't ruined by running it on AC without the battery.
<...snip...>

I bet that HP-25 could be resurrected with the help of a Panamatik infusion!

http://panamatik.de/html/hp_calculator_repair_kit.html

Good luck!

smp
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01-08-2018, 08:21 PM (This post was last modified: 01-08-2018 08:29 PM by AndiGer.)
Post: #3
RE: HP-25
Would suggest first to replace the batteries and try to power up.
Could be rechargeables or alkalines (don't use the charger with the second of course).
Or try to power up with an external 2.5V - 3V DC power source.
Andi
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01-08-2018, 08:37 PM
Post: #4
RE: HP-25
(01-08-2018 07:17 PM)larthurl Wrote:  Just for fun, I just finished reading the HP-25 manual as provided in the excellent Thumb Drive contents from the HP Museum. I don't have a working HP-25, but I remember using one in the late 1970s.

What an enjoyable read. It brought back so many memories and one thing stood out - the excellent writing and examples of HP. I think few if any companies could match the HP documentation from the 1970s and 1980s. Just superb
And what a great machine. I never owned one, but my father did after moving up from an HP-35 initially. Interestingly, I had an HP-65 when he had the 25, but I clearly remember admiring the capability of the HP-25, the packaging and the owners manual.

Just wanted to share a thought which I know has already been echoed by others.
btw, I still have his HP-25 but it is dead. I don't have a charger for it and am not sure the battery is still good. Hopefully, the calc wasn't ruined by running it on AC without the battery. In the last 10 years of my father's liefe, he used an HP-11c. I have that and it is still going strong.

......Art

An exellent option is to try GO-25 emulator From APP store. You could run all programs from HP Application Manual. I have an iPod 5 and the calculator runs the same as physical device, you will like this very much. GO-25 SciRPN from BigCatOs
https://itunes.apple.com/ar/app/go-25-sc...49517?mt=8
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01-09-2018, 01:09 AM
Post: #5
RE: HP-25
(01-08-2018 09:31 PM)Mike (Stgt) Wrote:  
(01-08-2018 08:37 PM)PedroLeiva Wrote:  An exellent option is to try GO-25 emulator From APP store.

You may also find some for free:
http://nonpareil.brouhaha.com
http://www.panamatik.de/html/hp_woodstock.html
http://www.teenix.org

Of cause on a smart phone the form factor is closer to ther original.

Ciao.....Mike
Sure Mike, I also have Panamatik in my NoteBook and is really a very good product too
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