Original poster: "tesla by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla-at-paradise-dot-net.nz> Finding a LDPE Cap is most interesting. Would like to test loss in a few MWO Caps myself. Has anybody tried measuring the loss angle for one of these and can describe a method ? Can apply RF Sig gen, and CRO to the project. Rgds Ted L in NZ