Boingboing recently featured this beautiful Trommelwähler (try saying that five times fast!) vintage telephone. The phone belongs to the Herbert H. Warrick, Jr. Museum of Communications in Seattle, who tweeted out a video of the phone.
According to the translated German Wikipedia page, Trommelwählers have:
a cylinder that is rotatable about a horizontal axis instead of a dial . The drum has the ten digits corresponding to ten indentations; The user puts a finger into a recess and thereby rotates the cylinder downwards until the stop is reached. After releasing, the cylinder ran back again.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — How Authority and Decision-Making Differ Across Cultures
Wearables — Perform operation
Electronics — Soldering Pointer!
Biohacking — EGG – Gut Monitoring Using Electrical Signals
No comments yet.
Sorry, the comment form is closed at this time.