We have a Hastings VT-4B made by Beede Electronic Instruments Co,
Inc. The line transformer in this unit has burned. It's a custom
transformer, made by Regional Mfg. Specialists, part number 528214-G.
From what I can tell, it just feeds into a bridge, center tap
grounded, which powers the LM78L12 & L79L12 regulators. Dimentions on
it are 1.635in x 1.325in x 1.325in. It has wire leads, no terminals,
and is mounted by two screws through the cores. Any suggestions for
replacement? Would a 12.6-0-12.6 transformer give enough headroom for
the regulators?

Thanks,
Steve