US$ 489.50
providing a quick swap-in reference for general-purpose AC-circuit and timing-experiment work
Eight 15 x 10 x 10cm pinhole boxes
showing the hexagonal bonding within each layer and the weak bonding between layers
Pack of 12 metal lattice support clamps fitting rods up to 12
supporting up to three pendulums simultaneously for harmonic-motion work
Single Contact Morse Code Key Base_Octagonal providing a quick swap-in referencePlated spring arm with press knob and a single contact stud, configured to make and break a circuit at the rhythm of a Morse code transmission for telegraph history demonstrations.
US$ 489.50
US$ 1212.50
US$ 146.40