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