Dopplesonde fixed bias

[sinusoids]

A. I built a pair of Dopplesondes with 5F6 preamps.  All is operational except the fixed bias.  As built, it had -20V B-.  With Cathode bias switched in, B- was -340V.  After trying lower R for the Bias supply I found with only 56k R, the bias was -94V with one set fixed and-56V with both sets fixed.  I now have one 56k R and 22uF C dedicated per tube set.  Both tube sets now have -56V max bias each.  They still interact quite a bit.  I can set bias for both V3+4 and V5+6 but if I have both in fixed bias the idle current for both increases quite a bit.  Any guidance here?  These current values include a switch to the grey 115VAC PT input tap – originally had used the black 125V tap.

B. Is my TUT bio editable?  I did not know that info would be included with every post – can I delete the bio for new posts?