Does my transformer have PCB oil????????

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>

I just acquired another old GE transformer, and was wondering if anyone
would know if there was PCB oil in it.

GE Pole Transformer
Black Cast Iron type approximately 50-60 years old.
4000V Primary - 120/240 center-tap secondary

I think the transformer was probably made way before PCB oil was being used,
but just wanted to make sure.

Dan