Woodstock Display Problem

[teenix]

(02-12-2020 08:07 PM)cjmcc Wrote:  I have an HP-29C that is working great except for the legibility of the display. The difference between lit and unlit segments is so small that it can be difficult to discern what is a 8 versus a 9, or where exactly the decimal point appears in the result. (OK, the last one is a trick question since I normally use the FIX 2 mode, but you get the idea.)

Any suggestions on how I can improve the display?

-Chris-

I haven't had a chance to play with these, but I see on the circuit there is an adjustable resistor attached to the cathode driver, so I assume it sets the display current and thus the brightness.

cheers

Tony