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A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board. The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15. The number is sometimes followed by a letter, indicating that components are grouped or matched with ...
Phantom power, in the context of professional audio equipment, is DC electric power equally applied to both signal wires in balanced microphone cables, forming a phantom circuit, to operate microphones that contain active electronic circuitry. [ 1] It is best known as a convenient power source for condenser microphones, though many active ...
Electronic symbol. 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 vary from country to country ...
Phantom circuit. In telecommunication and electrical engineering, a phantom circuit is an electrical circuit derived from suitably arranged wires with one or more conductive paths being a circuit in itself and at the same time acting as one conductor of another circuit.
A frequency response diagram plots the microphone sensitivity in decibels over a range of frequencies (typically 20 Hz to 20 kHz), generally for perfectly on-axis sound (sound arriving at 0° to the capsule). Frequency response may be less informatively stated textually like so: "30 Hz–16 kHz ±3 dB".
Diagram of center-tapped transformer. In electronics, a center tap (CT) is a contact made to a point halfway along a winding of a transformer or inductor, or along the element of a resistor or a potentiometer. Taps are sometimes used on inductors for the coupling of signals, and may not necessarily be at the half-way point, but rather, closer ...
Star quad cable. Star-quad cable intended for use with a single two-wire circuit or two two-wire circuits. It is often used with microphone signals in professional audio. Star-quad exploded view showing the geometric centers of the dual-conductors used for each leg of the balanced line. To achieve magnetic immunity, geometric centers of both ...
SwitchCraft 2501F/2501M. This is the part number for a Swichcraft connector used with high impedance microphones up through about 1980. It was intended for coax style cable up to 0.281 inches (7.1 mm) outside diameter. Attachment is made with a 5/8-27 threaded ring that can be unthreaded over the body of the connector body allowing the female ...