Regulated AC/DC Power Supply, 12V 1A Science at Home_Chemical Science landing it back in the

landing it back in the same barrel as the car rolls forward

Set of eight steel tuning forks tuned to scientific pitch (C4 = 256 Hz) for classroom work on sound waves

this analog DC microammeter measures 0-100uA at 2uA resolution on a tabletop housing

Transformer activity set with a plastic base

Eight aluminum-shank tuning forks tuned to scientific pitch (C4 = 256Hz) and ranging from 5 9/16 to 7 1/8 inches

Regulated AC/DC Power Supply, 12V 1A Science at Home_Chemical Science landing it back in theDelivers six selectable outputs from 1. 5V to 12V at up to 1A, drawing both DC and AC simultaneously with short circuit protection via a 0. 4A rear panel fuse.