john12ax7
Well-known member
Have a bunch of pcb mount transformers to evaluate and wondering how others approach this. Thinking of making a type of universal pcb with sockets that they could be plugged into.
Considering there are so many different footprints, and the usual test requires accessing only one primary and one secondary at a time, I would suggest you use croc clips suited for the taskjohn12ax7 said:Have a bunch of pcb mount transformers to evaluate and wondering how others approach this. Thinking of making a type of universal pcb with sockets that they could be plugged into.
Actually, if your concern is with parasitic capacitance, you should concentrate on the connection to your test equipment and said equipment own input impedance. Capacitance of a PCB trace is only a few pF, not too dissimilar to flying leads, but 1 meter of BNC cable adds about 30pF.john12ax7 said:Looking to do objective tests, (frequency sweeps, distortion, cmrr, etc) and subjective listening tests (imo they all tend to sound a bit different). I have BNC and XLR to clip leads that I normally use, but the main concern is that this will be introducing different parasitics than what will be in actual use. PCB mount vs flying leads is not necessarily the same thing.
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