Start learning or refreshing with multiplication and division which use
the C and D scales. Not difficult at all.
<http://sliderulemuseum.com/SR_Course.htm>
Chuck Norcutt
On 8/27/2012 8:57 PM, Mark Marr-Lyon wrote:
> On Mon, Aug 27, 2012 at 6:10 PM, <usher99@xxxxxxx> wrote:
>> Some calculators die hard. I have read many still love the HP12C
>> financial calculator. I believe they are still sold and the relatively
>
> The HP15c was the scientific version and was also very popular but out
> of production, though HP did sell a limited run of them a year or so
> ago. I've got several old HPs which all still work, like the HP35 and
> HP67 (with magnetic card reader), but I've always been partial to the
> HP48, which HP has released the ROM for so emulators are freely
> available.
>
>> I was spoiled rotten as a kiddie as we often
>> had a giant 4 fxn calculator (forgot who made it) and could ck long
>> division on it just after I learned how. This was pre LED's and had
>> weird neon tube thingies for the display and cost as much as a car.
>
> It probably used Nixie tubes. They have undergone something of a
> revival, and people are making clocks from them again.
>
> I've also got my dad's old slide rule, but haven't a clue how to use
> it. Neither does my dad any more :)
>
> Mark
>
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