  Radial-velocity measurements and sine-curve fits to the orbital radial
velocity variations are presented for ten close binary systems: EG Cep,V1191
Cyg, V1003 Her, BD+7_3142, V357 Peg, V407 Peg, V1123 Tau, V1128 Tau, HH UMa,
and PY Vir. While most of the studied eclipsing systems are contact binaries,
EG Cep is a detached or a semi-detached double-lined binary and V1003 Her is a
close binary of an uncertain type seen at a very low inclination angle. We
discovered two previously unknown triple systems, BD+7_3142 and PY Vir, both
with late spectral-type (K2V) binaries. Of interest is the low-mass ratio (q =
0.106) close binary V1191 Cyg showing an extremely fast period increase; the
system has a very short period for its spectral type and shows a W-type light
curve, a feature rather unexpected for such a low mass-ratio system.
