Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun a
compound thermionic valve containing atriode andtetrode ; was used insuperheterodyne radio receivers
Etymologies
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Examples
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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.
1. Selected Graphical Symbols of Electrotechnology Klaus Janoske 1991
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