6kV Bench PSU
![Built PSU](eht/eht psu.jpg)
Introduction
In mucking about with devices such as cathode ray tubes I found I often needed a few kV at a few milliamps for experiments and trials. I was able to buy a couple of adjustable EHT modules on ebay so I set about building a small bench PSU using them.
The Design
The design is nothing more than the module, a mains fed, adjustable DC power supply and a meter all packaged up in a purpose made laser cut acrylic case held together with 3D printed corners.
![Schematic](eht/ehts.png)
![PCB layout](eht/ehtb.png)
The design was made to include 115V and 230V mains operation and to fit modules with different footprints. Common are the Brandenburg 568-409 and the Matusuada UR-6PN.
As part of a larger PCB order I had a few "prototype quality" PCBs made for the project. They are entirely adequate as nothing fancy was required.
![Prototype PCB](eht/bare pcb.jpg)
Documentation
You should look in the "/Workshop Projects/EHT Bench PSU" folder.
I'm not expecting anyone to actually copy this design exactly as you would struggle to find the mains transformer and the 100uA meter FSD I used. Seeing the design here just might help a bit with a similar project.