Re: [TCML] GFI Transformer Help

[Matthew Stevens <truesoutherngeek@xxxxxxxxx>]

That's what I was afraid of. Thanks for all of your help, I'll check
and see if maybe I can trade it for an older one somewhere.

On Fri, Apr 17, 2009 at 5:10 PM, David Speck <Dave@xxxxxxxxxxxxxxxx> wrote:
> Matt,
>
> Sounds like you have a modern solid state inverter unit, which is unsuited
> for TC work.  The GFI units in question are small circuit boards tucked in
> along with big heavy iron core NSTs in steel cases filled with asphalt or
> epoxy with large insulators on the ends.  By dissecting out the connections
> to this board, some experimenters have been able to identify the power input
> leads and the connections to the transformer primaries.  These may be
> reconnected judiciously to bypass the GFI functionality.
> In the solid state inverter units, the GFI function is integrated into the
> control electronics (likely a custom microcontroller), and is unlikely to be
> circumvented.
>
> Dave
>
> Matthew Stevens wrote:
>>
>> Sorry I haven't gotten back with ya'll sooner, I've been at a student
>> convention all week. My transformer is a smallish, light weight, black box
>> that is mostly empty when you take the cover off. There is a part inside
>> that is encased in white epoxy looking stuff. Is that the GFI?
>
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