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6BE6Sensibly equivalent¶ to:See also:
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![](../pics/acx0019.jpg)
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The 6BE6 is a heptode or pentagrid valve. The heptode is classically used as a frequency changer in a superhet receiver. Radio and Television both use the superhet principle. To change frequency the incoming signal is mixed with a local oscillator. The electron stream is effectively switched on and off by the oscillator. In practice the process is one of producing sum and difference frequencies rather than just mixing of two signals.To prevent the oscillator and the signal interfering in unplanned ways a screening grid keeps the circuits apart.This example has white lettering, whereas, 6BE6 has red lettering. This valve is British Made, whereas the other was Made in England. This exhibit has the signal grid supports at right angles to the rest, the other has the grid supports in line. The suspicion is that this was made by another company and not STC.See also 12BE6 for the 12.6 Volt heater version.![](../pics/acx0019a.jpg)
The signal grid supports are placed at right angles to the main line of grid supports.The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 45 mm tall.References: Data-sheet & 1040. Type 6BE6 was first introduced in 1950. See also 1950 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | ![](../static/key.gif) g1 | k | h | h | a | g2,g4 | g3 |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm | Vosc | ![](../static/pdflogo.gif)
| 6.3 | 0.3 | 250 | 100 | -1.5 | 3 | 7.1 | 1M | 0.475 | 10 |
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Updated August 23, 2023.
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