I am in need of a replacement power transformer for a Marshall Lead 12 3005 amp. The current one looks like it was leaking something or had something spilled on it and looks like it is corroded. It in the schematic here http://www.drtube.com/schematics/marshall/3005.gif and Marshall has told me the direct replacement is a Dagnall B1PTB63015 which can be found here: http://www.gretschparts.com/products/1724/Marshall-Transformer-Power-50-watt.htm

I would prefer something that is well made like Mercury Magnetics, but they say they do not have anything that will work. I am not even sure what specs I need to give to a manufacturer when querying them about transformers. Any help would be appreciated.

The filter caps on this thing are also shot and am looking for good replacements there as well.

Thanks