I haven't seen an article describing this, but it could be done.
However, it would require significant modifications to the driver and PA stages, (tank circuit, VHF suppressor, etc.) along with removal of the low pass filter, which is set to cut off at about 34 mc.
Considering what's involved, it's probably not worth it. It's much easier and more enjoyable to use a transceiver like a Gonset G-50, Lafayette HA-460, etc. or a tranmitter that was meant for 6.
Chris