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.

A photo of the rear of a vintage studio television camera as the operator would see it. There's two circular dials lower down, and a small CRT display in the center. The number '3' is written in marker in the middle.

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.

A photo of the front of a vintage 'tube tester'. The camera is looking directly down on a control panel. There's dials and inputs all over, with a large swinging gauge in the center.
A vintage electronics pamphlet held in a hand above a piece of vintage electrical equipment. The pamphlet reads 'Anyone can replace TV tubes'.

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.

A photo of telegraph signals encoded as morse code on a long ribbon of paper. The ribbon is about 1/2
'5 level' tape from a telegraph machine. More here.
A photograph of a vintage radio player. The player has two reading heads side by side rather than one. The record has two visible tracks.

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.

A photo of the front of a vintage recording device. The device has a label on the front reading
1950s spring driven recorder. Originally priced $289.50 - $399.75
Photo of a vintage poster describing with words and diagrams how to use a rotary telephone. The main reading reads
A large vintage suitcase telephone. It has a standard receiver, but the rotary dialer is much larger than normal. The whole unit is about the size of a small suitcase and has a handle on the top. It looks comically large.
I'm unsure if this is a gag or a real thing that existed.
A close macro photo of a vintage radio postcard. The postcard reads
A grid of radio postcards on a wall. The cards are evenly spaced, but each very differently designed. Some have bold typography featuring 5 letter codes. Others depict animals / planes / local scenes.
A photo of a map of the United States. There are approximately 30 maroon or grey push-pins inserted at various locations.
Photo of the front of a vintage radio battery. The battery is brightly coloured with a graphic dark blue, light blue, white and red design. The front text reads