-UPDATE- pin 3+8 Phase Inverter voltages are at zero. However the voltages are on pins 3+8 for 5 seconds when the amp is cold started!
Replaced the tube- BAM problem solved.
When the PI (a JJ' ECC83S) Heated up to normal temp for some reason current would stop flowing through the cathodes... Just a bad tube. Hope this helps anyone! he said he had just replaced the preamp tubes. I have had 1-2 JJ' brand tubes be DOA right out of the box. But I love there sound, will just have to buy tested ones.