Gordon,
Short form no.? The 6146 does require power to the grid to run though small.
the key thing is you need 25-50V p-p of RF and to do that across the grid resistor
and the 10-20pf of input capacitance.
The other part is that the bitx needs a stable load and the grid of 6146 is not that.
I'd think at several watts a 4:1 or maybe 9:1 would do.? However if yu want stability?
you have to load that transformer with resistance as the 6146 just like IRF510
is very intolerant of sloppy RF design and will oscillate to destruction.
Allison