Arash Posted December 28, 2011 Share Posted December 28, 2011 hi there has anyone have any information about type AA transformers? about primary and secondary and impedance etc... I can twist myself but I have no information about them. any help badly appreciated in advance Quote Link to comment Share on other sites More sharing options...
djk Posted December 28, 2011 Share Posted December 28, 2011 Total inductance is about 35~40mH, with taps about every 3dB. Quote Link to comment Share on other sites More sharing options...
Guest " " Posted December 28, 2011 Share Posted December 28, 2011 ,,, Quote Link to comment Share on other sites More sharing options...
djk Posted December 30, 2011 Share Posted December 30, 2011 If I was winding my own tapped inductor (autoformer) from scatch (for the Klipschorn, LaScala, or Belle) I would make the first tap at -3dB and then add taps at -4dB, -5dB, -6dB, and -7dB. BEC and ALK both offer a transformer with these finer steps. Quote Link to comment Share on other sites More sharing options...
Guest " " Posted December 30, 2011 Share Posted December 30, 2011 also...only one winding.... Quote Link to comment Share on other sites More sharing options...
erik2A3 Posted December 30, 2011 Share Posted December 30, 2011 Just for the sake of clarity in terminology, it might be helpful to refer to the topic of discussion as an "autoformer" rather than "transformer" (as also indicated above at one point) This device is really more of a multi-tapped choke or inductor, as can be seen in the diagram, with a single winding (also. Above) where a true transformer will have both a primary and secondary section. Quote Link to comment Share on other sites More sharing options...
erik2A3 Posted December 30, 2011 Share Posted December 30, 2011 ....very easy to confuse the two since iron core frame types like these can look very transformer-ish. Quote Link to comment Share on other sites More sharing options...
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