tetrode

IPA: tˈɛtroʊd

A thermionic valve similar to a triode with the addition of a screen grid to improve the thermionic emission.
A dynatron.
A dual-gate MOSFET.

Examples of "tetrode" in Sentences

We thank Ruud Joosten for help with construction of the tetrode arrays and with surgeries,
"For recording, we used chronically implanted multi-tetrode arrays - a technique that offered us the chance to monitor many neurons at extremely high recording quality."
To get to distance from acceleration, the Rocket had to integrate twice-needed a moving coil, transformers, electrolytic cell, bridge of diodes, one tetrode (an extra grid to screen away capacitive coupling inside the tube), an elaborate dance of design precautions to get to what human eyes saw first of all-the distance along the flight path.
Graphical Symbol in full simplified diode, indirectly heated duodiode, indirectly heated or triode, indirectly heated or duotriode with separated cathodes, indirectly heated, heating filament with central tapping, internal screening of the system tetrode pentode, suppressor grid connected with cathode triode - pentode triode - heptode (according to the circuit, the systems may be drawn left-and-right reversed) 1.10.