was just dinking around with oshpark. but since i had to get multple i’m putting up one for anyone who wants to play/experiment (if intl you pay postage)
I’ll holler for it – and I’ve got the equipment to make measurements. As the author pointed out, doing stripline on FR4 is a crapshoot, as the properties of the material can vary from batch to batch, panel to panel.
Let me know about postage (I sent you a message with my address).