tickler coil

American  

noun

Electronics, Radio.

1. the coil by which the plate circuit of a vacuum tube is inductively coupled with the grid circuit in the process of regeneration.

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tickler coil British  

noun

1. a small inductance coil connected in series in the anode circuit of a valve and magnetically coupled to a coil in the grid circuit to provide feedback

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Etymology

Origin of tickler coil

First recorded in 1920–25

Example Sentences

You can tell whether or not it is going if you suddenly increase or decrease the coupling between the tickler coil and the input circuit of the audion.

From Letters of a Radio-Engineer to His Son by Mills, John

“I suppose you use a tickler coil in the plate circuit, don’t you?” ventured Joe.

From The Radio Boys at Mountain Pass The Midnight Call for Assistance by Chapman, Allen

Don't expect to get as good results with a two-coil tuner as with one having a third, or tickler, coil.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)

With Three Coil Loose Coupler.—To construct a really good regenerative set you must use a loose coupled tuner that has three coils, namely a primary, a secondary and a tickler coil.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)

Don't think you have to use a regenerative circuit, that is, one with a tickler coil, to receive with a vacuum tube detector.

From The Radio Amateur's Hand Book by Collins, A. Frederick (Archie Frederick)