[Fredrik]

Here are some pictures of my latest project. A retro TV built with tubes.
I built this from a description in an old radio magazine called "Polulär Radio" from the 50s. The problem was that I could not get the exact same parts. I have to use different transformers in the horizontal and vertical output sections. So it required some changes in component values, especially in the vertical section, to get the picture linear and at the right height. Also used a slightly more modern CRT with electrostatic focusing.

Another change I made was that I used a mains transformer and 6.3 volts tubes, instead of building a hot chassis as the original was.

To make it easier, there is no HF and MF sections. The signal is connected directly to the video amplifier.

Audio section is a simple amplifier built with a ECL82.

The cabinet, I designed and built myself. Several details and parts are printed with a 3D printer.

It works better than expected. It has been in operation for a few hours now without any problems. The picture is good and stable.