Hi All, We're trying to troubleshoot a problem in the high voltage supply of our Mat 251 RMS. The problem appears to be the big transformer(T3)in the digital electronics power supply (BLZ). This is a C306T transformer. Finnigan no longer supports this instrument and no longer carries this part, so I'm wondering if anyone can give me a lead on where to get this transformer or an equilivalent part. The old Finnigan part # is 316730 and the transformer has the number C306T31673/00 prnted on it. Unfortunately, that is all the information that I have regarding this part. Please let me know if anyone can help with this problem. Bernie Genna NCSU