Tuesday, November 25, 2008

1966 Telephone Encryption Device

Wiretap-proof telephone
This scrambler keeps private phone conversations safe from wiretappers and eavesdroppers. Fitted to an ordinary handset, it needs no electrical connection, has its own power source. To hear, a person needs an unscrambler coded identically. Delcon Division, Hewlett-Packard Co., Palo Alto, Calif., sells it for $275, keeps your name and code locked in its vault.
(more)

Unsold units were later turned into platform shoes :)
Just kidding.