Description

thermometers

configured to make and break a circuit at the rhythm of a Morse-code transmission for telegraph-history demonstrations

yellow) sit in 50 x 50mm mounts

Used to teach how AC/DC ammeters and voltmeters work

Electromagnetic pickup that converts sonometer-string vibration directly into an electrical signal

Large Loudspeaker for Physics Demonstrations Subcategory_Spring Scales thermometersBuilt in 300mW variable gain amplifier with 1 megohm input impedance accepts low output signal generators directly through the included coaxial to 4mm plug lead on this enclosed loudspeaker.

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Large Loudspeaker for Physics Demonstrations Subcategory_Spring Scales thermometers

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