[phreakmonkey] got his hands on a great piece of old tech. It’s a 1964 Livermore data Systems model A Acoustic Coupler Modem. He recieved it in 1989 and recently made a decision to see if it would actually work. It took some digging to find a proper D25 adapter and even then the original serial adapter wasn’t working because the oscillator depends on the serial voltage. He dials in and connects at 300baud. then logs into a remote system and fires up lynx to load Wikipedia. lucky for [phreakmonkey] they managed to decide on a modulation standard in 1962. It’s still remarkable to see this maker working 45 years later. He’d love to hear from you if you’ve used a similar device.
[via Waxy]