Description
sized to detect bidirectional milliampere currents in induction
5A standard rheostat with oxidized constantan winding on a vitreous-enameled steel tube
and mammalian organ systems for comparative vertebrate teaching
supporting medical and health-science teaching
Morse Sounder Mechanics_Force & Motion sized to detect bidirectional milliampereUsed to receive Morse code signals as audible clicks, this electromagnet driven pivoted arm sounder on a wooden base produces the snap of early telegraph operation when current pulses the coil.
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