[miniman82]

Everything about the 6AL5 is as it should be, it's just too close to the flyback. Remember that this is not a stock 630, the fly makes more HV and has higher pulses being driven into it (chassis now uses a 6CD6 instead of a 6BG6). I held my scope probe in the same location as the 6AL5, there's a ton of horizontal noise in that area so it's unavoidable that some of it would be coupled into the tube. Even when it's remote mounted it's not perfect, my extension harness isn't shielded so it can be better than it is now.