issue resolved
Gents - please stop flaming each other, that is not achieving anything except getting blood pressure high.
Best solution is using zener from B+ to g2 with flyback diode, bypass the zener with good quality audio capacitor and use a resistor to ground to bleed some "unwanted reverse current". Voila, problem solved.
Thanks to all who have contributed, much appreciated and as far as I am concerned this thread can be closed now.
Gents - please stop flaming each other, that is not achieving anything except getting blood pressure high.Best solution is using zener from B+ to g2 with flyback diode, bypass the zener with good quality audio capacitor and use a resistor to ground to bleed some "unwanted reverse current". Voila, problem solved. Thanks to all who have contributed, much appreciated and as far as I am concerned this thread can be closed now.
As far as I am concerned the issue has been resolved, voltage on g2 stays stable, no "negative" (or "inverse") g2 current and the voltage on the cathode is no longer fluctuating when large signals are being amplified. (as observed on an oscilloscope). Cannot hear any difference in sound quality but that was not the objective of this exercise; the objective was to ensure longivety of the 6L6GC and have it operating within manufacturers specifications and recommendations.
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