RE: NSTs & PCBs?!?

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

Original poster: "Mccauley, Daniel H by way of Terry Fritz <teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>



There is a possibility if they are old NSTs that PCBs are used in the TAR.
PCBs were commonly used in all types of
potted transformers - one particular example is the ballasts used in old
flourescent lighting.

The Captain




Hi,

does anyone know if PCBs were ever used in the tar potting of old neon
transformers???  When i picked up some NSTs today, the man at the sign shop
mentioned i probably should not try to depot them as there may be PCB in
the tar.  But now that i think about that, i would think they would have to
use better methods of sealing off the case of the NST, if that were true
(but then again, they didnt really think PCBs were bad at the time of its
use).
So to make sure, did the use PCB??  It makes me worry when i think of all
the old transformers i unpotted!

Steve Ward,

PS, i hope im not setting off a false alarm. if so, sorry about that!

PPS, is anyone else having a heck of a time getting NSTs???  The sign shops
dont want to give up the old ones, and say that the price of new ones is
sky rocketing.