  The PIP-II linac will include thirty-six beta=0.61 and twenty-four beta=0.92
650 MHz 5 cell elliptical SRF cavities. Each cavity will be equipped with a
tuning system consisting of a double lever slow tuner for coarse frequency
tuning and a piezoelectric actuator for fine frequency tuning. The same tuner
will be used for both the beta=0.61 and beta=0.92 cavities. Results of testing
the cavity-tuner system for the beta=0.61 will be presented for the first time.
