Analog multiplizieren: Die Hyperbelfeldröhre

+++ Save the date: Starting March 24, 2023, you can see the hyperbolic field tube in the new HNF exhibition area on analog computers! +++ A glass cylinder with special capabilities: The hyperbolic field tube is considered one of the few physical tools that can be used to perform multiplications in analog computers. The only known example today comes from the Institute for Practical Mathematics (IPM) at the Technical University of Darmstadt. The hyperbolic field tube was built in the 1950s and used in the ELARD electronic analog computer. This computer was developed by Friedrich-Wilhelm Gundlach and Walter Dhen. Only a few tubes of this type existed – four of them in ELARD. Later computers used the more complex parabolic multipliers or expensive Gilbert cells instead. In the video, HNF curator Dr. David Woitkowski tells you more about the hyperbolic field tube, demonstrates circuits for multiplication in analog computers, and takes you on a short journey through the world of computers at the Heinz Nixdorf MuseumsForum. ______ Don't want to miss any videos? Subscribe to our channel:    / heinznixdorfmuseum   ______ More from the HNF online: 🌐Homepage: https://www.hnf.de/start.html 📸 Instagram:   / hnfpb   💬 Twitter:   / hnfpb   📘 Facebook:   / heinznixdorfmuseumsforum   🖋 Blog: https://blog.hnf.de/