The 464 Dual Channel Storage Oscilloscope is designed to display non-repetitive or slow moving signals. A portable unit with DC to 100MHz response. CRT mesh filter installed to minimize CRT faceplate radiation. Four signal-output BNC connectors on the rear chamber changes to a type that improves shielding of the connected signal leads. Features two modes of storage: Variable Persistence and Fast Transfer. Stored writing speed of 110 div/usec. Deflection factor from 5 mV /div to 5 V/div in a 1-2-5 sequence. Sweep rate of 5 nsec/div with X10 magnifier. Weighs 26 lbs.