About this recording 3–150 President Richard M. Nixon White House operator May 27, 1971 White House Operator Richard M. Nixon Conversation No. 3-150 Date: May 27, 1971 Time: Unknown between 6:38 pm and 7:53 pm Location: White House Telephone The President talked with the White House operator. Call to H.R. (“Bob”) Haldeman Secret White House Tapes | Richard M. Nixon Presidency 3–150 Backward Play Stop Forward Download audio Previous 253–9 Next 254–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 254–1 audio icon 506–1 audio icon 506–10 audio icon 506–11 audio icon 506–12 audio icon 506–13 audio icon 506–14 audio icon 505–15 audio icon 505–16 audio icon 3–165 audio icon