Considering 35s acquisition

[HP67]

(02-10-2014 11:52 AM)robert rozee Wrote:  the software issues are quite minor when compared to mechanical and materials considerations. it is very unlikely that even a fraction of the 15C LE calculators made will still be functional in 10 years time, due to failure of the flexible conductive plastic cable between PCB and LCD, and also because of the use of lead-free solder in the construction. there will be nobody who buys a 15C LE at the beginning of their career and still has the same calculator operating at the end.

the materials in the cable decompose over time, leading to the ends detaching, while lead-free solder grows dendrils (long tin crystals), which eventually produce shorts between adjacent pads. these are both well known issues in the electronics industry.

I guess this means our 50g models are also destined to die horrible premature deaths? I read the other day about somebody buying an extra just in case they stop making them. I did the same. Now perhaps it won't help?