makes sense to reuse parts where possible.
My experience with output transformers is more ferrite the better.
However the 2:4 turn transformers at 12-13V had very poor efficiency
as in under 40% and a lot of heating and the linearity was also poor.
Didn't make any difference which device.
Note I measure the current to the finals alone since the board provides
the separate feed. As a result anything over 2A for 10W was deemed
not good (under 50%) and with the 2:3 and 2:4 I was seeing typically
2.6to 3A again for only 10W out. Going from 43 to 61 ferrite made little
difference if the ferrite was enough except at 80m. A transmission
line transformer 1:1 hooked in with DC blocking caps (.1uf 100V) as
a balanced to unbalanced was remarkably good on a BN43-6802 at 10W.
Most cases of ferrite heating it was the wire or how it was wound had
a greater effect.