If I were to bet (and lord knows how we could really find out)... I'd bet that Jack Elliano does all of his own design work. My hunch is that John from One Electron probably engaged a transformer designer to design his line of tranneys... I'd bet 3:1 odds that he didn't tear down another companies product and copy it. And who else did we have on the list? Lundahl.... surely a ton of design capability in house.

As for myself... when Wayne and I were chatting on the phone... he asked me about the MQ name. And I explained to him that it was intended originally as an umbrella name to hold the designs (from several companies) that we purchased. When SE circuits became popular... contrary to the lore of the golden era.... there were really not any\many existing designs in our archives that we could build from. So we designed our own single endeds... the entire DS and FS series as just two examples.... we're designed in house at MQ. And then sold under the MagneQuest moniker as I did not (even though I had the legal right to) pin the success or failure of these new designs on the coattails of Peerless (which was one brand name that we did own).... they were our fresh new designs so they had to fly or falter on their own without artificial help....

transformer design can be mastered or at least one can acquire a really useful working knowledge of magnetics without resorting to teardowns, reverse engineering or etc.

the public domain designs would be, in my opinion, a great place to start.

msl