About this recording 19–150 President Richard M. Nixon White House operator January 28, 1972 White House Operator Richard M. Nixon Conversation No. 19-150 Date: January 28, 1972 Time: Unknown between 5:25 pm and 5:26 pm Location: White House Telephone The President talked with the White House operator Request for a call to H. R. (“Bob”) Haldeman Secret White House Tapes | Richard M. Nixon Presidency 19–150 Rewind 10 seconds Play/Pause Fast-forward 10 seconds 0:00 Download audio Previous 949–9 Next 450–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 450–1 audio icon 47–1 audio icon 450–10 audio icon 450–11 audio icon 450–12 audio icon 450–13 audio icon 450–14 audio icon 450–15 audio icon 450–16 audio icon 450–17 audio icon