Note
This document presents "The Master Headset Finder," a comprehensive historical catalog published in the February 1999 issue of The Old Timer's Bulletin (OTB). Serving as a memorial to the late OTB "Headsets" editor, Dick Mackiewicz, the registry compiles and updates vintage radio headphone data originally built upon foundational work by Lud Sibley.
The catalog details an extensive alphabetical listing of antique headset manufacturers, model names, material compositions (such as Bakelite and aluminum), and specific electrical impedance specifications. It outlines Mackiewicz’s meticulous cataloging methodology, which accurately preserved the original typographical variations found on physical specimens and distinguished verified physical artifacts from models only documented in vintage advertisements. Ultimately, the publication functions as both a vital reference framework for antique radio collectors and an open archive inviting ongoing historical contributions.