Ronald Dekker has just posted this - a V6 uTracer that can do Va at 1000V and 1A.
His weblog on this is at https://www.dos4ever.com/uTracerlog6/tubetester6.html
uTracer6 weblog online
Dear uTracer friends,
Let me start by wishing you and everybody dear to you a great and above all healthy 2020!
The uTracer3 has been around for a number of years now and over time many people have asked me for higher voltages and higher currents. It is not so easy to come to a design that hits the sweet spot between performance on one hand and simplicity on the other hand. I think I am now on the right track for a well-balanced design, and I felt confident enough to start a web-log about it. The target specs for the uTracer6 are 1000V @ 1A for anode and screen, and a -100V to +100V range for the control grid. The coming months I will add chapters to the blog as the work progresses.
Once a year I ask people who have built a uTracer and who are satisfied with it to send me a few pictures and a few lines for my testimonial page. If you have not done so, please take a few minutes time to do so. it is highly appreciated!
Marie-José & Ronald
If they glow, this is the place to be
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