27 Sep
2001
27 Sep
'01
5:34 a.m.
I quit using most of my other calculators and, today,
use an HP 25C almost
exclusively, though I have a '21 also. I didn't know those were
collectibles.
back in the '70's, I modified the battery
holder so I could replace the
batteries when they went bad. This was a common problem. The use of
1.5-volt
batteries probably won't hurt anything if my own
calculators are any
indication,
though I've usually replaced the NiCd types with
others of the same sort.
Way back in '77 (I think), I got a mailing from TI advertising and
offerring for sale the TI Programmer, which was a simple 4-function
calculator in that standard black-plastic format they used to use,
replete with the also-standard LEDs. However, it wasn't actually a
four-function calculator, because it included radix conversion and
several standard logical operators.
At home, when I need radix conversion, instead of the Casio Fx-115m or
the Calc accessory, I still reach for the TI Programmer...
-dq