I've started a thread on LPF about this project about 1 year ago, at this moment it is fully complete. I've started building this laser after I had a big luck buying a russian sealed off CVL tube named UL-102 with a set of mirrors for it. The laser head itself and the power unit, that consists of three blocks I've built myself. The power unit consists of the Blumlein generator with a magnetic switch, thyratron driving oscillator and the HVDC source for the anode of the thyratron. All circuitry had been built with the use of vacuum tubes instead of modern solid state electronics. The main HV transformer is fully custom built too, including its oil tank. Estimated output power of the laser is about 5W on both lines (510 and 578 nm) out of 2 kW from the wall plug. More information about developing this project is here, on LPF. https://laserpointerforums.com/f43/h...tem-99252.html