Here is a list of things I am very interested in. So, if it is my birthday, Christmas or you feel you owe me something for fixing your computer then here are some hints :)
Hewlett Packard 15c calculator
Image and more information thanks to http://www.hpmuseum.org/hp15.htm
- The HP 15c was made between 1982 and 1989 and is still regarded my many as the best scientific calculator made. They pop up on online auctions at times for rediculous prices. I have a the voyager series (landscape as above) HP 12c, which is a very capable financial model and the HP 48G+ which is a nice portrait style scientific calculator, but the 15c is a dream for one day.
Faber Castell 2/83N Novo Duplex Slide Rule
Photo and more information can be found on http://home.clara.net/sliderules/collection/10inch/020/1021-fabercastell-2-83n.htm
This slide rule was produced in 1974 around the same time that electronic calculators were becoming relatively affordable. It is a beast :)
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