O.G. Villard's Q-Multiplier Patent
Herb Brier, "Use a Q-Multiplier," Popular Electronics, May 1956
Robert Grenell, "Bring Back the Q-Multiplier, 73, October 1969
H.E. Harris, "Simplified Q Multiplier," Electronics for Communications Engineers, pp 29-33
Ronald L. Ives, "Use of Q Multiplier...," 73, date?
Jack Najork, "The Built-in Q Multiplier," CQ, December 1958
Joe A. Rolf, "Q Multiplier Boosts Selectivity & Gain," Popular Electronics, April 1974
Wilfred M. Scherer, "Q Multiplier," CQ, January 1955
Donald L. Stoner, "Citizens Band Q Multiplier," Popular Electronics, March 1961
Heath QF-1 Q Multiplier Schematic
