HP-29C now has dots across the display...

[rprosperi]

(09-02-2024 07:21 AM)Bill Duncan Wrote:  Yes, brand spanking new Duracell double A batteries. Tested. I'd cleaned the contacts with the pink eraser when I'd changed the batteries to be sure.

Good news that the problem appears to be gone. However I advise you to replace those Duracell batteries with another, more reliable brand. Duracells have long been known to be of poor quality and they often leak and damage units. As far back as the mid-80's, HP advised all calculator owners to NOT use this brand, and in the case of the 71B (which used 4 x AAA cells) even advised customers to get reimbursed by Duracell for any needed repairs, as they were known to leak and cause damage.

It sounds like you take good care of your toys, so please heed this advice and keep your 29C happy and safe for years to come.