Those are really cool! I hope you're listening to "Dark Side of The Moon". Did you know it's on the soundtrack of the new Dune movie? https://www.imdb.com/title/tt1160419/
There's a Jodorowsky Easter egg! Terry, Communications engineer for 43 years. On Mon, Sep 14, 2020 at 1:17 PM Frank Znidarsic <fznidar...@aol.com> wrote: > I found these earphones at local flee market. They were $20. They were > made by Schwarze Electric in Detroit circa 1923. I got them working with a > minor repairs. I tried to attach cotton lamp cord. This did not work out > so there they are with modern earphone wire. At least with this > arrangement I can unplug them. These earphones are of a 3000 ohm high > impedance design. The voice coil goes over a fixed magnet. The magnet > operates on a thin steel armature with no electrical connections on it. > The sound is very tinny and awfull The Radiola III actually sounds much > better with modern low impedance earphones. > > There I am hoping to live to see the upcoming modern age of the low > impedance high fidelity loud speaker. > > > When you find something like this from the incipient age of electrical > communication and get it working, you realize how short of a time that our > modern electrical age has existed. > > Frank Znidarsic > > > http://www.angelfire.com/scifi2/zpt/temp/OutOf1923.jpg >
