  The binary nature of the bright (V = 4.2 mag) Mercury-Manganese star Phi Her
has been known since 1976 and it was considered a low-amplitude single-lined
SB. In a recent study we found evidence for lines of the secondary star. Other
recent results from interferometry provide a good measure of the light ratio.
It is very plausible that the secondary is a late main-sequence A star. We find
the rotational velocity of the secondary to be ~42 +/- 5 km/s.
