Since I got the Sommerkamp FT-307 ,
might get also the companion FV-107, external VFO, not the "same" brand but with the same schematic, so last week scored one on an auction site and received yesterday.
Today did a light on test and all fine, I'm sure the oscillator works also, if not will be an easy fix:
I previous had one FV-107 in grey colour that I sold and at that time made an adapter/converter circuit so an FV-107 could be used on the FT-102 because the external VFO for the FT-102 line it's hard to find, here's mine:
Have a nice weekend!