Was making steady progress until I discovered crumbly rubber wiring in the IF can. I decided the best course of action was to unmount, disassemble and rewire.
Also made some repairs on the speaker cone. Previous repairs were made with something like liquid electrical tape, but I refer diluted Aleene's Tacky glue.
It soaks into the paper resulting in a stronger cone, while remaining flexible and adding little extra mass.
After the glue on the tear set up, I went over the whole cone with diluted glue.