HI Mike, dr pepper,
Thanks again guys. I follow up to the patent literature Mike and found the origin of the text. The trans was meant for flickering neon light for it's high voltage output. Now for my attempt to make a similar trans, the transformer maker needs spec such as VA, input and output voltages. With info of Primary secondary turn ratio 1:200, primary winding feedback of 50:1, input voltage of 5Vdc, would that be sufficient spec? I measure a working trans an inject a 5V on the primary side, without connecting any other component, what I get was 36V on the secondary (open circuits). This info, will it be sufficient? What do you think guys?