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  2. Lafayette Radio Electronics - Wikipedia

    en.wikipedia.org/wiki/Lafayette_Radio_Electronics

    Lafayette advertised heavily in major U.S. consumer electronics magazines of the 1960s and 1970s, particularly Audio, High Fidelity, Popular Electronics, Popular Mechanics, and Stereo Review. The company offered a free 400-page catalog filled with descriptions of vast quantities of electronic gear, including microphones, speakers, tape ...

  3. Troubleshooting - Wikipedia

    en.wikipedia.org/wiki/Troubleshooting

    Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.

  4. User guide - Wikipedia

    en.wikipedia.org/wiki/User_guide

    It is usually written by a technician, product developer, or a company's customer service staff. Most user guides contain both a written guide and associated images. In the case of computer applications, it is usual to include screenshots of the human-machine interface(s), and hardware manuals often include clear, simplified diagrams.

  5. Electro-Voice - Wikipedia

    en.wikipedia.org/wiki/Electro-Voice

    They decided to focus their business on audio products. The company designed a PA system for Notre Dame football coach Knute Rockne. Rockne, who had difficulty being heard at football practices due to health problems that affected his voice, called the new PA system his "electric voice". Rockne's remark inspired the company's name.

  6. Peavey Electronics - Wikipedia

    en.wikipedia.org/wiki/Peavey_Electronics

    Circuit board layout is conservative, easy to access, repair or modify. Dynamics and reliability are excellent. Its only weak point is that the preamp and power amp modules are installed in the chipboard cabinet with lack of electromagnetic shielding, resulting in a need to physically separate the amp head from bass pickups and speakers.

  7. iFixit - Wikipedia

    en.wikipedia.org/wiki/IFixit

    Co-founder Kyle Wiens [14] has said that he aims to reduce electronic waste by teaching people to repair their own gear, [15] and by offering tools, parts, and a forum to discuss repairs. [16] In 2011, he travelled through Africa with a documentary team to meet a community of electronics technicians who repair and rebuild the world's discarded ...

  8. Electret microphone - Wikipedia

    en.wikipedia.org/wiki/Electret_microphone

    Electret microphone capsules This typical electret microphone circuit has a common source configured JFET inside the two-terminal electret capsule. 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.

  9. Measurement microphone calibration - Wikipedia

    en.wikipedia.org/wiki/Measurement_microphone...

    In order to take a scientific measurement with a microphone, its precise sensitivity must be known (in volts per pascal). Since this may change over the lifetime of the device, it is necessary to regularly calibrate measurement microphones. This service is offered by some microphone manufacturers and by independent testing laboratories.