a compound thermionic valve used in superheterodyne radio receivers

listen to the pronunciation of a compound thermionic valve used in superheterodyne radio receivers
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pentagrid converter
a compound thermionic valve used in superheterodyne radio receivers

    Heceleme

    a com·pound ther·mi·o·nic valve used in su·per·he·ter·o·dyne ra·di·o receivers

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