Craig
Thanks for that info.
Yes, I have seen other RIFA snubber combo units (cracked) which I junked, and replaced with separate R+C - but that was without doing any brainwork.
Now I want to understand this concept properly.
Now, going back to the Tek A2A1 schematic, there is a R+C snubber R1018 30R + C1018 68nF , and also R1016 68R + C1016 68nF
I have seen R1016 burnt a few times, which I have replaced with a Ceramic Composite.
BTW, Metal Oxide (IMO) is unsuitable for these pulsed circuits.
A non-inductive Ceramic Composition resistor would be the best choice.
Any inductive resistor is going to cancel out the benefits of the snubber, and the ringing will simply continue.
