909
The Cintra/Tektronix 909 aka Scientist 909 is a desktop scientific calculator with a Nixie display.
Sister model Statistician 911 replaces the Log(x), tan(x), hyper, and π keys with factorials and statistical functions.
The 926 Programmer provides programming functionality with conditionals, branching and subroutines for the 909/911.
Manuals
Links
- Tek 909/911 @ oldcalculatormuseum.com
- Tek 909 @ dustyoldcomputers.com
- Tektronix calculators @ vintagetek.org
Pictures
- please add