1964 Antique MODEM Live Demo

Circa 1964 Livermore Data Systems “Model A“ Acoustic Coupler Modem, live demonstration. Q&A: Background: This modem was given to me ~1989 by the widow of a retired (IBM?) engineer. has a Model B dated 1965, and I’ve seen a ~1967 Model C written up in a magazine. (Interestingly, incorrectly identified as being only 110 baud.) Even better than seeing it in a museum, I decide to hook the trusty Model A up and make it talk to somethin