I have an old HP 32S calculator. I used it so much in college and grad school, I got very used to it. The display has faded, however, so using it is very unpleasant. There is little contrast now.
I got myself a new 35S, and HP welshed on their written promise to send me a paper manual, so now when I want to learn how to do something, I have to look at a ridiculous PDF, or I have to print the 352-page PDF out and keep a fat, clumsy bundle of papers next to me.
I would love to put the 35S in a drawer and use the old 32S. Is there any way to get a faded calculator display to work better?
I got myself a new 35S, and HP welshed on their written promise to send me a paper manual, so now when I want to learn how to do something, I have to look at a ridiculous PDF, or I have to print the 352-page PDF out and keep a fat, clumsy bundle of papers next to me.
I would love to put the 35S in a drawer and use the old 32S. Is there any way to get a faded calculator display to work better?