| Hi Jeffrey
What you have there is a classic ferroresonant Constant Voltage Transformer. 
The capacitor and second primary winding are resonant at mains frequency 
Stabilisation is achieved by core saturation.  
Check out information sources such as
 
http://www.engineeringtalk.com/news/rlo/rlo145.html
and products such as 
http://electrogard.com/cvt.htm
http://www.sunups.com/star.htm
73 Mark G4AXX
www.granta.digital-crocus.com
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>>> "Jeffrey Madore" <K1LE@ARRL.NET> 07/05/03 16:56:54 >>>
I have a transformer question that someone might be able to shed some light 
on....
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                
                                                 
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