"John Byrns"
"Phil Allison"


** In simple theory, it cannot swing to more than twice the DC supply.
However, when you factor in the effects of OT leakage inductance, the
various stray OT capacitances and the OP tubes acting like fast switches
when driven hard into a notionally infinite Z ..... bad things do
happen.

Your theory is too "simple", real theory says it can swing to more than
twice the DC supply, even without any leakage inductance, me thonks you
need a theory check.



** And this "real theory" is to be seen where ??

Coming out your backside all that smoke ?

Considering a PP stage operating with secondary unloaded, plate voltages on
one side have to go negative for the voltage on the other side to exceed
twice the supply.





............... Phil