| Thermionic valve; dot tree (anag.) |
The Telegraph Cross Atlantic |
27 Jan 2025 |
| Type of valve designed to deter (7) |
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| A radio valve with four electrodes, usually an anode and a cathode (7) |
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| Valve used to deter misconduct (7) |
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| Tube to deter travelling around? |
The Telegraph Cryptic |
25 Feb 2021 |
| Walked, bumping into Peg in the tube |
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| Valve succeeded passing check and remained unchanged |
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| Walked with external support, a bit of electronic apparatus |
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| Two-grid vacuum tube |
Premier Sunday |
02 Dec 2018 |
| Certain vacuum tube |
Premier Sunday |
12 Aug 2018 |
| A type of vacuum tube to deter conversion |
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| First of the early travellers had journey in the tube |
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| Vacuum tube variety |
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| Radio tube |
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| Electron tube |
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| Vacuum tube |
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| Type of vacuum tube |
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| Electron tube. |
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