From: forkliftcontrols@yahoo.com on

The old faulty inverter uses the BIT3105 CCFL controller chip FYI, I
tried to replace the four shorted mosfets (FDS8958A) but they still
keep frying...maybe a shorted primary winding on one (or more) HV
transformers?

The cheap "PC-mod" inverters seem to work great so far with the
transistor switch.

Thanks for the help everyone!