Hello,
One of my other hobbies is everything HP from 1970 to 2000. In fact I am finishing a book about the thirteen families of HP calculators. Restoration techniques, upgrades, photos, how to and etc. It will be around 400 pages when completed (soon). I belong to a group of people based on the first computer club in the world formed around the HP 65, the first programmable hand held calculator:
The HP 65:
Short write up on the HHC:
http://h20331.www2.hp.com/hpsub/downloa ... %20V2c.pdfNow to the DWF. This year the conference was held in Ft Collins, with a tour of the atomic clock facilities at Boulder Colorado as a follow up. On the way down to the conference from Vancouver Canada, I decided to create a PowerPoint on the flight about the HP 01. It might be of interest here so follow this link:
https://m.youtube.com/watch?feature=you ... RE3-xsbyb0Cheers, Geoff