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HL210Sensibly equivalent¶ to:See also:
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The Marconi HL210 was first introduced in 1928 and is a general purpose triode.The dome carries the HL210 Type designation as well as the circular lettering of Made in England.![](../pics/abn0091a.jpg)
The etching on the face of the envelope Marconi Valve and has the BVA logo beneath. The anode is positioned horizontally. The grid wire can be seen. The filament is a single strand in a V shape - just as the image in the advert shows.The balloon envelope is 41 mm in diameter and, excluding the B4 base pins, is 78 mm tall.References: Data-sheet & 1043. Type HL210 was first introduced in 1929. See also 1929 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | ![](../static/key.gif) a | g1 | f | f |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | ra | gm | ![](../static/pdflogo.gif)
| 2.0 | 0.1 | 150 | 28k | 0.5 |
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Updated October 05, 2018.
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