old tv - REALLY old

[NutmegCT]

Awhile back I posted about TV in the 1920s.

So I built one.

Using info from https://www.televisionexperimenters.com and https://www.nbtv.org I built a 32 line receiver based on the pre-electronic systems of the USA and UK. Interesting to see how the old systems worked.

Image originates as mpeg created by my Sony Cybershot (or other mpeg files), converted to 32 line format by NBTV software.

How far we've come ....

Tom

 

[aeronca65t]

Cool.

We go the ~David Sarnoff Library~ in Princeton on a regular basis and it's neat to see how far we've come.

That old video has a sort of *creepy* effect.

 

[sparkydave]

Very cool! I collect antique radios, and I've got a book titled "They All Laughed" that describes the history behind some inventions (like television) and how early on they were dismissed as useless. It gives a good history on the development of mechanical television, and how it worked.

 

[sideache]

That's terrific that you built one.

 

[PATR8]

Speaking of old, I have an old edison phonograph missing the flute (I beleive that is what it is called) It plays wax cylinders of which I have 2. How does one find teh value of something like that? It works still, really needs some attention above what I can offer it. We have it sitting in our family room

 

[wkilleffer]

I remember reading the book "Tube" a couple of years ago. Went into all kinds of detail about John Logie Baird and his work with the Nipkow Disk. I was just amazed that the system worked as well as it did, and of course wanted to build one to check it out for myself. Have yet to have taken the plunge. Cool on you for doing so.