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The JFET is externally-powered by the DC voltage V + through a resistor which sets the gain and output impedance. The output audio signal is received though a DC blocking capacitor . An electret microphone is a microphone whose diaphragm forms a capacitor (historically-termed a condenser ) that incorporates an electret .
Symbol for an P-Channel JFET with label (S,D,G) Date: 1/06/06: Source: From Scratch in Inkcape 0.43: Author: jjbeard: Permission (Reusing this file) PD: Other versions: Same, but without labels. Derivative works of this file: JFET P-Channel Labelled ru.jpg,
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
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This current dependency is not supported by the characteristics shown in the diagram above a certain applied voltage. This is the saturation region, and the JFET is normally operated in this constant-current region where device current is virtually unaffected by drain-source voltage. The JFET shares this constant-current characteristic with ...
Common circuit diagram symbols (US ANSI symbols) An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may ...