In 1922 the French Compagnie générale de la télégraphie sans fil established the Centre Radioelectrique on the rue Richaud (now 3 Nguyen Dinh Chieu), Saigon (10°47′24″N 106°42′04″E / 10.79°N 106.701°E / 10.79; 106.701) for government communications.
Their pretense no longer necessary, the VC commander and his men from the E2 Water Engineer Company rushed into the building and either killed or subdued the staff inside.
The VC brought along a tape recording of Ho Chi Minh announcing the liberation of Saigon and calling for a "General Uprising" against the government of President Nguyễn Văn Thiệu, but they were unable to broadcast it because the previous day the director-general of the station Lieutenant colonel Vu Duc Vinh had arranged to the take the station off air on giving a prearranged signal.
The signal was duly given and the lines from the main studio to the transmission station were cut and instead broadcast a mix of Viennese waltzes, Beatles, Rolling Stones and Vietnamese martial music.
[1]: 358 At 10:24 on 30 April 1975 Radio Saigon broadcast President Dương Văn Minh's order for all South Vietnamese forces to cease fighting and later his declaration of an unconditional surrender.