The analogue computer is able to search ahead on the master tape and determine the level and location of the upcoming modulation (or velocity'), -relative to the physical disc. Master tapes have traditionally moved at 15 inches/second (ips) & occasionally at 30 ips. I believe Scullay developed this technology along with the great feed-back lathe that greatly improved bass response. This is not as easy at its sounds for late 1950's technology, but it worked splendidly. Modern lathing heads have long been driven by a type of analogue computer that looks ahead on the master tape and charts the modulation levels in units of physical revolutions of the phonograph disc. a quiet classical piece, Debussy's "Clair de' Lune" would be able to extend the maximum possible time limit as the modulation is generally much less than on a pop record like "Hey Jude". The maximum length of time that any record format can reasonably contain depends upon the dynamic range of the music, e.g. Gift of Dick Clark See more items in Culture and the Arts: Entertainment Popular Entertainment American Enterprise Exhibition American Enterprise Exhibition Location National Museum of American History Data SourceĪ 45 RPM, microgroove, 7" phonograph record CAN contain more than 7 minutes and 11 seconds of music. LocationĬurrently not on view (sleeve) Object Name This record is the Capitol Records rerelease from 1978 with catalog number 2276 and matrix number X46434. Technical limitation of records used to limit singles length to 3 minutes, but Bob Dylan’s six minute long “Like a Rolling Stone” changed this convention and extended the single format on both vinyl and radio. Select a record pressing plant in the US to press your records and submit an order with them.This is the 45 rpm 7 inch vinyl single containing the Beatle’s song “Hey Jude” and the B-side “Revolution.” Originally released in August of 1968 on the Beatle’s Apple Records label, “Hey Jude” was over 7 minutes long, the longest single ever to hit number 1 in the United States. Let the plant know that you are providing your own lacquers (from me). I should not be cutting your master lacquers until you have a confirmed order set with a pressing plant. The plant needs to be expecting lacquers from me. Book a session to have master lacquers cut.If a pressing plant receives lacquers that are not accounted for, they will not get processed. Sessions to cut master lacquers are not attended. ![]() One lacquer is needed for each side of a record. A single album needs 2 lacquers created, a double LP would need 4, etc. Finally, after everything is sent to the plant you’ll receive test pressings of your record.Let me know where the project is being pressed, and once the masters are cut I’ll express ship the lacquers directly to it or the corresponding plating facility. These are a small batch of finished records. Most plants require approval of test presses before manufacturing the bulk of your order. Once you approve the test presses the plant will complete the rest of your order.Īcetates are more than double the weight of a test pressing and are cut on aluminium discs that are coated with nitrocellulose lacquer they are not made of vinyl like a test pressing. ![]() If your acetate sounds like a good vinyl translation then it can be approved. Please note, if your record player is inexpensively made or has a low torque motor the acetate may play back inconsistently or with warble this is a turntable issue, not a problem with the acetate or overall cut.
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