6E6p-e Little Tiny Wire - diyAudio
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Old 10th February 2013, 12:03 AM   #1
jlsem is offline jlsem  United States
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Default 6E6p-e Little Tiny Wire

The 6E6P-E tube has an element at pin eight that consists of a very fine wire that circles about three-quarters of the way around the internal structure of the tube. It is fastened in four places on the top and bottom micas but isn't connected to any other elements. There is a description in the second data sheet at this link but I can't read Russian.

''GSTube.com''. Tubes, sockets etc. Parameters and characteristics 6E6n-DP

Does anyone know what this does?

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Old 10th February 2013, 01:45 AM   #2
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"Проводящий слой внутренней поверхности баллона (Вывод 8) должен иметь отрицательный потенциал относительно катода. Обрыв цепи Вывод 8, а также приложение положительного относительно катода потенциала к проводящему слою приводят к выходу лампы из строя."

"The conductive layer (=screen) inside the tube (Pin 8) should have a slight negative potential in relation to the cathode. If Pin 8 is left open, or a positive potential in relation to the cathode is applied, it can cause a tube failure."

This means the usual way of dealing with such a screen. Simply apply ground potential. Due to the cathode resistor, the screen will be naturally a bit more positive than the cathode.
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