"oscillator" - key terms from Wikipedia

audio oscillator
colpitts oscillator
controlled oscillator
crystal oscillator
damped harmonic oscillator
electronic oscillator
harmonic oscillator
harmonic oscillator	vcos
hartley oscillator
local oscillator
lorenz oscillator
master oscillator
oscillator
oscillator	circuits
oscillator	klystron
parametric oscillator
quantum harmonic oscillator
quartz oscillator
relaxation oscillator
simple harmonic oscillator
supersonic wave oscillator
universal oscillator	equation
virtual oscillator	model