TI-66 double speed mod

[John Garza (3665)]

Thanks Nigel,

I took your advice and made the upgrade.
Only issue for me was I had a physically larger (1/2W) 68K resistor, so I wired it in and nestled it in some heat-shrink tubing next to the batteries. Works great!

The machine is now pleasant to use. The delay used to be annoying even in manual calculations.

It makes a nice handy desk calculator for me. I grew up (high-school) with a TI-59, so the programming paradigm is familiar and comfortable. And I don't have to take out my 59 and bang it around in daily use.

-J