There are 4 Northrop F-5B aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1966 and 1968.
N675TC
1968 Northrop F-5B
Aurora, OR
N566PC
1966 Northrop F-5B
Seattle, WA
N991SC
1966 Northrop F-5B
N995SC
1966 Northrop F-5B