Organ Pipe Polished Wood, With Movable Piston Marked With The Chromatic Scale From C (512) To (1024), Overall Length When Fully Extended 880 mm May Be Used For Investing The Phenomenon Of Beats In Conjunction With A Second Pipe Of The Same Type.
ultrasonic Continuous Wave Generator With Probe, Power Consumption: 5-60 Va; Failure at 100 Va, Mains Voltage: 90-230 V, 50/60 Hz, Fuse: T630 Ma at 115 V; T315 Ma at 230 V, Generator Frequency: </=20 Mhz, Frequency Increment: 1 Hz
Assorted Large Drilled Ball Set, set of 12, A 3mm hole is drilled through the center of each ball. Every set comes in a convenient plastic storage case, with a foam bottom that holds each ball firmly in place