I start building process of experimental dekatron cell. The idea is to develop and debug Read and Write control circuits for dekatron.  All other computer stuff can be just created from regular logic elements, but not this one. Voltage difference is up to 900V, about 6 different voltages and cray amount of tubes.

I selected 3D-wiring because need to develop schema first. So this unit is for debug purposes only. Further 17 dekatron unit would be PCB-based with subminiature tubes.

This is how future 3U block will look like. Lately I'll add other modules, PSU, coolers and so on.