On Mar 31, 2024, at 16:52 , n4buq via groups.io <n4buq@...> wrote:
Glad it isn't the TD. Yes, I've pulled side panel to get to the right-hand side of the time-bases. Getting to the left-hand side is a bit more of a challenge.
Did you also look at the other TD?
VR322 and VR358 both look OK on the curve tracer, or at least what I think a 4.7 mA TD should look like. I started tracing things out with the side panel off, and things looked reasonable until the Trigger Generator <4> of the manual from tekwiki.
A waveform was present at Q309 and Q317, but not at the base of Q326, so I'll look at that area more closely and take better notes. The triggered holdoff stage description in the manual is over my head, as usual.
thanks,
Adam
