Remote of CTC-10

[6GH8cowboy]

Been working on a set for TVCOLLECTOR and the remote was badly damaged by leaked battery at one time (not original remote to the set).
This is the one with the lucite buttons. The copper foil is about gone in many places. It has been carefully cleaned. I have replaced the traces with wire, replaced both caps, and transistor. Continuity checks indicate good path end to end from components to contacts on all functions. Only one function works only some of the time, the rest don't. The scope shows only a burst with no sustained oscillation.
I suspect either the PCB material itself is contaminated in some way and no longer a good insulator or the coil is bad. In this hobby remotes seems to be a nitch within a nitch. If anyone has a good idea or insight it would sure help.
This device has a great look and feel; like how the car doors closed in the 50s. This is going to be a awesome final touch if I can get it working and stable.