22-05-2013, 02:08 PM
I finally did it!!!!
The scope is working OK with the 60Hz EHT PSU. I got -1300V for cathode and +3500V for anode, on the CRT. No noise present. See pictures bellow. It istill a bit unfocussed but i guess this due to some lack of negative voltage in the focussing plates. I hope to solve that next weekend. Synchonization is perfect, and the trace is steady in the screen.
The scope is working OK with the 60Hz EHT PSU. I got -1300V for cathode and +3500V for anode, on the CRT. No noise present. See pictures bellow. It istill a bit unfocussed but i guess this due to some lack of negative voltage in the focussing plates. I hope to solve that next weekend. Synchonization is perfect, and the trace is steady in the screen.
