HP-29C - Brighter LEDs?

[rprosperi]

I don't have access to my non-C HP-25's at the moment, other than my unit which has been converted to a Woodstock Low Power 25E, which is not fair to compare.

My 25C and 29C are not as different as those you show, perhaps because they are both Continuous RAM designs as you suggest.

Overall I do see LED brightness variation among the ~10 Woodstocks I have, and I assume that this is just component variation and/or battery strength, and not indication that any of them have problems.

I've found that when treated properly (i.e. charging batteries outside the unit, not dropping, etc.) Woodstocks are fairly resilient and reliable.