An automatic frequency-controlled oscillator and amplifier for driving mechanical vibrators

Author:	Potter, Elmer Vernon,
Year:	1943
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:3702
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	3702
Subjects:	Vibrators
	Oscillators, Electric
Link:	https://hdl.handle.net/2027/mdp.39015078491696