My Vintage Computer Virtual Museum and blog page.

Carterfone Data Coupler 337 Modem

My Carterfone Data Coupler 337 acoustic coupler modem (added to my collection in 2018)

Date stamps on the components inside date this modem to somewhere in mid 1969.

This page will be updated as I learn more about this modem, and get it repaired and working correctly.  As of now it powers up and briefly produces a tone, however it will not recognize a carrier tone and respond, and it appears to be originate mode only, so I can’t have it attempt to answer a data call either.