syntonizer

Etymology

From syntonize + -er.

syntonizer means that which syntonizes. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

noun

That which syntonizes.
A device consisting essentially of a variable inductance coil and condenser with a pair of adjustable spark balls, for attuning the time periods of antennae in wireless telegraphy.