RE: Disassembling transformers

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Dave Halliday" <dh@xxxxxxxxxxxxxx>

Richard Quick suggested freezing but then running the transformer with a
short across the HV output for an hour or two.  This will warm the core
enough so that the chunks of frozen tar can be pulled away without
damaging the windings.

He used kerosene (a lot less dangerous) and mentioned that the
tar-kerosene mixture was an excellent sealer for asphalt driveways if
you have one.

Dave

> -----Original Message-----
> From: Tesla list [mailto:tesla@xxxxxxxxxx]
> Sent: Thursday, February 09, 2006 9:13 PM
> To: tesla@xxxxxxxxxx
> Subject: RE: Disassembling transformers
>
>
> Original poster: "Robert Hanford" <pomnept@xxxxxxxxxxx>
>
> Hi,
> I froze my NST, chipped away some or the tar, then soaked it
> in gasoline til
> almost all the tar was gone. Don't remove all of the shunts.
> There is good
> internet material on this. I think a lot of us have stories about this
> particular aspect of coiling.
> Good luck,
> Robert Hanford
>
> -----Original Message-----
> From: Tesla list [mailto:tesla@xxxxxxxxxx]
> Sent: Thursday, February 09, 2006 10:38 PM
> To: tesla@xxxxxxxxxx
> Subject: Disassembling transformers
>
> Original poster: norman@xxxxxxxxxxxxxxxxxxxxxxxxx
>
> Has anyone tried to open up an OBIT or NST and dissolve the
> potting material
> in
> order to remove the magnetic shunts?  If so, could you explain how.
>
>
>
>