Hello Im new to the forum and have been researching the Expression amp for a new build project. I have a Power transformer that was salvaged from an old Baldwin organ. The transformer is stamped C512-029863
and has the following readings with a 110V primary
High Voltage 271-0-271
There is also a 70% tap
32V w/CT
6V
5V
my wall voltages are more like 120v so everything is a little higher in real application. The organ amp it came out of used to run 4 el84 power tubes and 4 12ax7's so the heater winding should be within spec for an Express amp.
Please let me know if this makes sense or if im off the mark completely.
Expression transformer questions
Moderators: pompeiisneaks, Colossal
Re: Expression transformer questions
It's probably good. Does it show any power rating...which might be in V/A terms ?
Re: Expression transformer questions
Unfortunately all I have to go on is that serial number that stamped on it and that led me to it coming out of a Baldwin organ. I did the voltage testing on a variac myself. I wish there were amperage ratings but its an older transformer. It is pretty heavy though so Id say it can handle the required current.