My cheat sheet shows the K1G is an NPN transistor #MMSTA05 for which a MMSTA55 can be substituted. Measure the package and pin spacing. It comes in SOT23 and SOT323 packages. It is rated at 60V and o.5 A,I have a K1G T3 that is shorted between the base and emitter.
Can't find it on line so I'll require a substitute.
Would the bc847c be a close match?