06-04-2022, 05:59 AM
While I appreciate that PCB insulated coils offer some advantages by generating higher voltages for sparking(better able to leap a large gap) I'd rather not have one around. As AG Wood notes above, they began to be used around 1929. I'm not sure the vintage of Runbaken coils mentioned, but presumably they were post 1929. PCBs are nasty chemicals, slow to degrade, cause cancer, and three headed chickens.
Erich in Mukilteo
https://en.wikipedia.org/wiki/Polychlorinated_biphenyl
Erich in Mukilteo
https://en.wikipedia.org/wiki/Polychlorinated_biphenyl