tickler coil
- noun
- Archaic
- The engineer adjusted the tickler coil to achieve optimal feedback in the radio circuit.
Examples
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If the tickler coil is too loosely coupled, the feedback may not be sufficient for oscillation.
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Early regenerative receivers often used a tickler coil to amplify weak signals.
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The tickler coil enhances the performance of the vacuum tube.
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Many tickler coils are used in radio circuits.
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Early regenerative receivers often used a tickler coil to amplify weak signals.
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The engineer adjusted the tickler coil to achieve optimal feedback in the radio circuit.
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If the tickler coil is too loosely coupled, the feedback may not be sufficient for oscillation.
Synonyms
A piece of wire wound into a spiral used in electric devices
Surface Forms
Morphology
tickler + coil
This is a domain-specific technical term: while 'coil' is a transparent lexical item, the constituent 'tickler' is not a common noun for B1 learners (and is absent from the provided dictionary entry) and does not transparently convey the feedback/stimulation function of the component. Knowing 'coil' alone would not allow a learner to infer the specific role or smallness implied by 'tickler coil', so the overall meaning is not derivable from the parts for an average B1 learner.
Etymology
Tickler coil comes from the idea of 'tickle' as a light touch: the word tickler suggests a small, gentle touch and the coil is a small loop of wire that sends a tiny signal back into a radio circuit. That little 'tickle' makes weak signals stronger or helps the circuit keep working, so the term now means a small coil used to give 'feedback' in radios.