Unitrode's rhymes with:
crossroads, inroads, railroad's, railroads, railroads', anodes, boatloads, carloads, caseloads, cathodes, copycodes, crossroads, diodes, downloads, episodes, inroads, microcodes, nematodes, overloads, payload's, payloads, planeloads, railroad's, railroads, railroads', shiploads, truckloads, workloads
Unitrode's sounds like:
underdog, underdogs, undertake, undertakes, undertook, undertows, underwoods, underwrites, untruths