605 time delay crossover

[Alien_Shore]

Here are the same measurements, with a bit more sensitivity on the scope:

LF only:



HF only:



Combined:



No joy on the dual channel triggering. I did manage to get all three devices going with a USB bus, but the scope software still only will look at the internal signal generator and the probe. So with that experiment I was at least able to see the electronic trace of the test chirp as it came out of the amp into the filter, but just cant put anything else on the display with it. I plan on building another tube amp this winter, so I'll be on the lookout for a standalone scope or some better software.