B&K Tube tester Dyna Jet 707

The B&K 707 is the ultimate professional-grade tester for any user that values his or her time and appreciates convenience.
Features a clever voltage control circuit that eliminates the need to constantly set the AC line level to insure accurate tests,
regardless of line voltage variations. Has sockets for most late model hifi tubes, including compactrons, novar, duodecal, and Nuvistors.
Dyna Jet System, where many popular tubes can be tested by just setting two dials.
Dual section tubes can be checked with just two push buttons. Sensitive grid leakage and shorts read on the meter and on a neon lamp,
indicating grid emissions, internal shorts, or gas. Life-test push button, which will indicate on the meter,
gives indication of relative good use left in a tube.

Very nice tester, Will ship at actual cost