started trying some of those changes listed in the second link, so far not sounding right unless i'm reading it wrong. so somebody correct me if this is wrong.
R112 change to 1M in series with 2nf and the 330k voltage divider goes from R112 to ground ?
second cathode R11 4.75 to 2.7
3rd stage cathode R12 10 to 2.7
3rd stage bypass c11
4th cathode R19 bypass w/1u
plexi mode is R101/C55
