Description
Eight 15 x 10 x 10cm pinhole boxes
Plated spring arm with press knob and a single contact stud
Eight aluminum-shank tuning forks tuned to scientific pitch (C4 = 256Hz) and ranging from 5 9/16 to 7 1/8 inches
measuring period under different loads to isolate mass from weight
Pack of 12 metal lattice support clamps fitting rods up to 12
Single Contact Morse Code Key Base_Octagonal Eight 15 x 10 xPlated 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.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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