EH voice box, one upper harmony setting. SM58 into EH box into AR20DL analog delay into '66 Deluxe Reverb for vocals. '59 Les Paul Reissue direct (OMG!) into '78 Marshall SL100 for guitar.
For more info and purchasing see:
http://www.buyanalogman.com/EH_Voice_Box_harmony_machine_and_vocoder_p/ehvoicebox.htm