Pavek Museum of Broadcasting
The Pavek Museum (amazing website) holds an great collection of vintage broadcasting and media equipment. They’ve got examples of all sorts of things, including some rather odd inventions that never took off. I visited based on a tip from Atlas Obscura.
Rather rare for museums (particularly of vintage artefacts) they encourage vistitors playing with the exhibits. Many of them were still in working condition and museum staff happy to turn them on. I particularly enjoyed the Star Wars theme played on twin 1920s cinema speakers the size of grand pianos.
How does a vintage paper pamphlet like this survive so long in such good condition? Many of the machines had their accompanying promotional material next to them. Really great to see the outlandish claims and instructions that were included.
This table had a collection of curiosities. A stereo record player (note the twin heads and tracks on the disc), a lamp (top left) with record player in the top, and the base acting as an amplifier.