MotoTRBO History of 2 Way Radios through Time

Hmmm … missing is the first fully transistorized HT, the HT-200 (which preceeded the HT-220 by a few years).

Otherwise, okay (was this orginally done for the sales staff or customers I wonder?).

BTW, I had the MOTRAC (Motorola Transistorized Research Line) series pegged as starting about the year 1959 judging from the IEEE Vehicular (?) Communications society pubs.