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2. Electrical tape - Wikipedia

   en.wikipedia.org/wiki/Electrical_tape

   Electrical tape (or insulating tape) is a type of pressure-sensitive tape used to insulate electrical wires and other materials that conduct electricity. It can be made of many plastics but PVC (polyvinyl chloride, "vinyl") is the most popular, as it stretches well and gives effective and long-lasting insulation.

3. LP record - Wikipedia

   en.wikipedia.org/wiki/LP_record

   The LP (from long playing [2] or long play) is an analog sound storage medium, specifically a phonograph record format characterized by: a speed of 33 + 1 ⁄ 3 rpm; a 12- or 10-inch (30- or 25-cm) diameter; use of the "microgroove" groove specification; and a vinyl (a copolymer of vinyl chloride acetate) composition disk.

4. Music technology (electric) - Wikipedia

   en.wikipedia.org/wiki/Music_technology_(electric)

   The long-playing 33 1 ⁄ 3 rpm microgroove vinyl record, or LP, was developed at Columbia Records and introduced in 1948. The short-playing but convenient 7-inch 45 rpm microgroove vinyl single was introduced by RCA Victor in 1949.

5. Talk:Electrical tape - Wikipedia

   en.wikipedia.org/wiki/Talk:Electrical_tape

   Top row, left to right: [...] electrical tape (“just say no!”). (AoE v3, p. 63) It is a good idea to insulate all exposed line-voltage connections inside any instrument, for example by using polymer heat-shrink tubing (the use of “friction tape” or electrical tape inside electronic instruments is strictly bush-league). (AoE v3, p. 632)

6. Duct tape - Wikipedia

   en.wikipedia.org/wiki/Duct_tape

   Wheel fender extension to keep down lunar dust improvised using duct tape during the Apollo 17 mission. The first material called "duck tape" was long strips of plain non-adhesive cotton duck cloth used in making shoes stronger, for decoration on clothing, and for wrapping steel cables or electrical conductors to protect them from corrosion or wear. [4]

7. Comparison of analog and digital recording - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_analog_and...

   The frequency response for a conventional LP player might be 20 Hz to 20 kHz, ±3 dB. The low-frequency response of vinyl records is restricted by rumble noise (described above), as well as the physical and electrical characteristics of the entire pickup arm and transducer assembly. The high-frequency response of vinyl depends on the cartridge.