Circuit example of the LM381
National Semiconductor (NS Company) production of audio ICs wide frequency response, low noise, assembled with its audio circuits, very good performance in all ...
M5227 five-band equalizer circuit
M5227P is the application circuit, for graphic equalizer, its control curve is always logarithmic frequency axis to represent rate, and require the same control...
The basic form of frequency equalization circuit
The figure for the feedback voltage Vf, it is taken from the output voltage Vo by EQ network. Input voltage Vf...
Audio function generator ICL8038 circuita
Composition audio ICL8038 function generator shown in FIG. IC using ICL8038. Resistance Ri potentiometer RP1 to determine feet straight flow potential Bian,...
Measuring SN audio bandpass filter circuit
Since the filter has a zoom function, front satin amplifier magnification such as d = 10/2. 515 = 3,97, the beam of the total, compared with 10 times magnificat...
BA313 with ALC circuit diagram of sound recording
BA313 is a built-in automatic level .png">control circuit (ALC) of audio recording preamplifier circuit, commonly used in the cassette...
uPC1237 speaker protection schematic
uPC1237 by a single power supply, operating voltage range of 25v ~ 60v, usually the direct use of the amplifier as a positive power source + Vcc power....
An attenuated tone control circuit diagram
This article is an attenuated tone control circuit diagram. This circuit is mainly composed of transistors and RC networks are network components. As shown...
Variable corner frequency tone circuit
By selecting an attenuation switch to change the pitch of a feedback control circuit transition frequency real cases. Hu) for 2 treble controls,...
Variable corner frequency tone circuit
By selecting an attenuation switch to change the pitch of a feedback control circuit transition frequency real cases. Hu) for 2 treble controls,...
Audio vibration thaw circuit diagram
In the refrigerator before cooking after eating fish, meat and other food to be defrosted. The freeze was put into water, and the...
Ballroom synchronous voice switching circuit with music
Circuit works: a circuit with condenser microphones to sense sound and converts it into a signal changes, and then ...
Ballroom synchronous voice switching circuit with music
Circuit works: a circuit with condenser microphones to sense sound and converts it into a signal changes, and then ...
The second equalization circuit
In the second equalization circuit connection method, and it works as shown in Figure 1-96. When the potentiometer wiper is moved lc inverting...
The second equalization circuit
In the second equalization circuit connection method, and it works as shown in Figure 1-96. When the potentiometer wiper is moved lc inverting...
Infrared Wireless Headphones circuit
Since the transmission circuit inductive wireless headset must be fixedly mounted on a wall or ceiling of a room, it can not be...
Recording level display circuit
Provided only manual recording level control function, when the circuit is in the recording mode, the recording level as LM3915N was shown....
Recording level display circuit
Provided only manual recording level control function, when the circuit is in the recording mode, the recording level as LM3915N was shown....
uPC1891 application circuit
ptPC1891A application circuit, where in SA is working state switch, a total of four to choose from, it is mainly through the...
uPC1891 application circuit
ptPC1891A application circuit, where in SA is working state switch, a total of four to choose from, it is mainly through the...