SignedEngraved on wood base A.P. GAGE / BOSTON, MASS.
FunctionFor the demonstration of and experimentation with high voltages and the sparks they produce. This device includes a vibrator which intermittently opens and closes the circuit for the continuous supply of very high voltages and sparks. Frequently used to power discharge tubes.
Historical AttributesThe painted triangle indicates that this instrument was used for teaching at Harvard University. Physics 3 course in the 1920s.
ProvenanceFrom the Physics Department, Harvard University. Jefferson Laboratory, Oct. '58.