Re: 5116+5D10 intensity problem
Have you (and can you) safely measure the high voltage when this wandering happens? First, though, I'd check ripple and voltage on the supplies. That you have no stable trigger tends to make me think (in general terms) that there's ripple on the power supply somewhere.toggle quoted messageShow quoted text
It's possible that the supplies start good, and then something changes in the supply goes bad and the ripple goes up.
On 2/14/2020 10:57 AM, Yeun-Jung Wu wrote:
I just digged out the A3 HV board and checked all the transistors, diodes except CR247, CR298, which is a 10kV, 5mA silicon diode and a 800V, 25mA silicon diode, respectively. I forgot to check the thick film hybrid resistor R272, which had multiple wire juction at A, B, C, D, E, F.