1966 Guild T1 RVT - REVERB not working

[TelRay]

See how much signal you can get at pin3 (control grid of pentode section) of 6BM8 with fairly hot settings of amp and reverb level. Should be able to get several volts I would think.

I was looking for a good point to hook up the scope's probe to do what you suggested when the full signal came in (i had a load on the big speaker but the reverb speaker connected to the amp)... a connection problem with the 0.15 uF capacitor.
I guess we should never underestimate the power of hitting components around with a wooden stick