I built this fixture some time ago. It makes measuring chokes, baluns and ununs common mode very simple. The SOL(T) CAL loads are built onto the PCB.
My interest in common mode reduction now lies in VHF and UHF where this jig will not function because of lead lengths. All mounting hardware (except the banana sockets) has been replaced with stainless steel.
$50 includes USPS shipping in the USA.
Regards,
Dale W4OP
