29. Winding Secondary Bobbins for High Voltage Transformers
COVID-19 resulted in Battel Engineering getting its own bobbin core winder in order to develop some special high voltage bobbins for testing. Various cores types and bobbin types were investigated (wound by yours truly) for developing the 10,000 volt sine wave drive for the 170,000 volts multipliers shown in some of the earlier pictures. This particular bobbin has a 2400 turn secondary. Actually, it was very challenging to wind using 38 AWG wire.