[TinCanAlley]

I decided I would give my battery operated scope a shot at it. I do know that back in 2012, I scoped just about everything major on it with my Tektronix before anyone mention "hot" chassis. I did inquire about it after reading that and had mixed responses about using an isolation transformer. Some said it was ok not to since it had a transformer for all sources of power, while others said it was better safe than sorry. I am in the camp of better safe than sorry, so I'll be using battery operated and only if that doesn't work will I bring out the big gun.

Maybe someone can tell me if I have this correct.... I want to scope the B+ DC coupled. If I then do AC, won't that show me ripple? If so, how much ripple is too much ripple? The filter caps for the B+ came off the canister cap, but other than the values in it, I can't find anything about ripple. I do know about what I replaced it with and it has a ripple of 1.5A. I don't know if that's too much, but all the caps I could find were between 1.4 and 1.6A for ripple. I've learned quite a bit over this project, but somethings still mystify me.