Re: HP11C emulators?



krw wrote:
In article <Ffaej.33025$JD.8246@xxxxxxxxxxxxxxxxxxxxxxxxxx>, sci.electronics.design, notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx says...
krw wrote:
In article <YwBdj.988$pA7.697@xxxxxxxxxxxxxxxxxxxxxxxxxx>, sci.electronics.design, notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx says...

<snip>

AFAIK PDAs don't have stellar battery life. That's the most important parameter to me with all things portable. The HP11C is the secret hero in that domain. It ran 15 (!) years on the first set. Only my wife's alarm clock that she got from our ultrasound company beats that. Over 20 years on the first battery and still humming.
Should be several hours, no? My old WorkPad was certainly good for one work day.

But that's not good enough. You can leave the HP11C on all day, weeks, months. I never had that one go blank on me because of battery exhaustion. When the asterisk flashes you can still complete a whole business trip without a mad dash to the supermarket. And good luck finding a new battery for the PDA in the boonies when it decides that it has had enough charge-discharge cycles.

<shrug> My cell phone battery doesn't last years (like my 11C did) either. It simply gets recharged every night. If I had a PDA (not organized enough to use one) it would simply sit next to it.
BTW if someone else sees that asterisk in the lower left corner: It is the low battery indicator and after a fall you may have to clean the batteries, clean the contacts or adjust the contacts. Sometimes giving the batteries a twirl fixes it.
That would have been good to know, if someone hadn't "liberated" my 11C.

Sad. I don't really understand people who do that.
I think one of my Fluke 77s followed it.

:-(

In my travel bag there is a Harborfreight Cheapo. No tears if that gets "liberated".

I keep them in my tool boxes too. They're really bait (do you really use these?". The Flukes are kept out of sight.


Actually I do use them. They are surprisingly accurate for mundane stuff like DC levels and currents. Just don't open one and see who they are built (I did). I've convinced a client to buy a bag full as well. Now we can place a meter anywhere we want because there are so many.

--
Regards, Joerg

http://www.analogconsultants.com/
.



Relevant Pages

  • Re: HP11C emulators?
    ... Bent over to solder something at a client, the trusty HP11C slipped out the shirt pocket and hit the tile floor really hard. ... Not an 11C emulator, but XCALC is an excellent RPN calculator. ... Over 20 years on the first battery and still humming. ... And good luck finding a new battery for the PDA in the boonies when it decides that it has had enough charge-discharge cycles. ...
    (sci.electronics.design)
  • Re: HP11C emulators?
    ... You can leave the HP11C on all day, weeks, ... I never had that one go blank on me because of battery ... clean the contacts or adjust the contacts. ... I think one of my Fluke 77s followed it. ...
    (sci.electronics.design)
  • Re: AC adapter info for Fluke 8060A?
    ... (adobe pdf - 6.18 MB) ... Typically 170 hours with an alkaline battery. ... "Battery Eliminator Jack" is wired the same as the schematic. ... want to trust _my_ Fluke to such unknowns. ...
    (sci.electronics.equipment)
  • Re: Purchasing a new high end multimeter
    ... Hi Dave - how would you compare the Agilent to the Fluke? ... The 189 has a 72 hour battery life, ...
    (sci.electronics.design)
  • Re: Capacitor value, can you help me?
    ... Because the Fluke use up battery also in OFF state. ... Did removal of the capacitor fix the battery drain problem? ... there isn't any difference between theory and practice. ...
    (sci.electronics.repair)

Quantcast