The schematic is a bit smudgy - can you repost with pin function annotated?Pin 1: .68v
Pin 2: .88v
Pin3: 0v
Pin4: 0
Pin5 : 0
(Those two are connected)
Pin 6: 369
Pin7: .7
Pin 8: 9
Pin 9: 0
That 170v reading must've been a fluke
Could that 470k resistor be at fault
The cathode voltage on the cathode follower stage should be a few volts higher than the grid - the data sheet should tell you how many.