TG: analog. (fita sonora)(por)
TE: 14 pol (36 cm)(por)
TE: 10,5 pol (27 cm)(por)
TE: 5 pol (13 cm)(por)
TE: 3 pol (8 cm)(por)
TE: 2 pol (5 cm)(por)
TR (características do produto): fita magnética(por)
TE: 14 pol (36 cm)(por)
TE: 10,5 pol (27 cm)(por)
TE: 5 pol (13 cm)(por)
TE: 3 pol (8 cm)(por)
TE: 2 pol (5 cm)(por)
TR (características do produto): fita magnética(por)
Nota de escopo / nota de aplicação
[ENG] Propreties of magnetic disks and tapes : reel size | SOURCE : JORGENSEN, F. The complete handbook of magnetic recording. 3rd. ed. Summit, PA, USA: Tab Books Inc., 1988. Chap. 14 (Table 14-1) p. 328
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[ENG] Dates: c. 1935 – 1980s | Common Size(s): Tape width: ¼" | Reel diameter: 2"; 3"; 5"; 7"; 10.5" | Description: Quarter-inch open reel audio is the earliest type of magnetic tape-based recorded sound format. The tape is composed of magnetic particles, binder, and a base of either acetate, paper, polyester, or PVC. The quarter-inch size, which was the standard width of open reel tape until the 1950s, is the most common open reel tape width, particularly among amateur recordings. Cellulose acetate was the most common tape base during the 1940s and 1950s. Acetate bases can be differentiated from polyester bases by conducting a quick light test. Hold the reel up to a light source - if light "pipes" through, the base is most likely acetate. Reel size can vary, measuring from 2 or 3 inches to 10.5 inches in diameter (14-inch diameters are also possible), with 5, 7, and 10.5 inches being the most common sizes found in archives. The tape width is approximately ¼". | Composition: Magnetic tape (acetate, paper, polyester, or PVC) on a hub or reel. | SOURCE : PSAP - Preservation Self-Assessment Program. AUDIOTAPE. University of Illinois at Urbana-Champaign Available at : https://psap.library.illinois.edu/collection-id-guide/audiotape Accessed : 05 aug. 2022.
[ENG] Dates: 1950s - 1980s | Common Size(s): Tape width: ½" | Reel diameter: 3"; 5"; 7"; 10.5" | Description : Half-inch open reel audio is a magnetic tape-based recorded sound format. The tape is composed of magnetic particles, binder, and a base of either acetate or polyester, with the latter being more common among half-inch tapes. Acetate bases can be differentiated from polyester bases by conducting a quick light test. Hold the reel up to a light source—if light "pipes" through, the base is most likely acetate. | Reel size can vary, measuring from 2 or 3 inches to 10.5 inches in diameter (14-inch diameters are also possible), with 5, 7, and 10.5 inches being the most common sizes found in archives. The tape width is approximately ½". Open reel tapes over ¼" were typically used in studio production (i.e. multitrack recording). A half-inch audio tape may be either 2-, 4-, 8-, or 16-track. | Composition : Polyester or acetate magnetic tape on a hub or reel. | SOURCE : PSAP - Preservation Self-Assessment Program. AUDIOTAPE. University of Illinois at Urbana-Champaign Available at : https://psap.library.illinois.edu/collection-id-guide/audiotape Accessed : 05 aug. 2022.
[ENG] Dates: Early 1950s – 1980s | Common Size(s) Tape width: 1" | Reel diameter: 3"; 5"; 7"; 10.5"; 14", uncommon | Description: One-inch open reel audio is a magnetic tape-based recorded sound format. The tape is composed of magnetic particles, binder, and a base of either acetate or polyester. Acetate bases can be differentiated from polyester bases by conducting a quick light test. Hold the reel up to a light source—if light "pipes" through, the base is most likely acetate. | While tape width is constant at approximately 1 inch, reel size can vary, measuring from 2 or 3 inches to 10.5 inches in diameter. More rarely, 14 inch diameters are also possible. 5", 7", and 10.5" reels are the most common sizes found in archives. Open reel tapes over ¼" were typically used in studio production (i.e. multitrack recording). 1" audiotape, for instance, might contain 8 tracks or as many as 16 audio tracks. Audio recordings on 1" open reel audiotape are often mistaken for videotape. | Composition : Polyester or acetate magnetic tape on a hub or reel. | SOURCE : PSAP - Preservation Self-Assessment Program. AUDIOTAPE. University of Illinois at Urbana-Champaign Available at : https://psap.library.illinois.edu/collection-id-guide/audiotape Accessed : 05 aug. 2022.
[ENG] Dates: Late 1950s – 1980s | Common Size(s) Tape width: 2" | Reel diameter: 3"; 5"; 7"; 10.5"; 14" | Description : Two-inch open reel audio is a magnetic tape-based recorded sound format. The tape is composed of magnetic particles, binder, and a base of either acetate or polyester. Open reel tapes over ¼" were typically used in studio production (i.e. multitrack recording). A 2" tape, for instance, might contain as many as 24 audio tracks. | Acetate bases can be differentiated from polyester bases by conducting a quick light test. Hold the reel up to a light source: if light "pipes" through, the base is most likely acetate. Reel size can vary, measuring from 2 or 3 inches to 10.5 inches in diameter (14-inch diameters are also possible), with 5, 7, and 10.5 inches being the most common sizes found in archives. The tape width is approximately 2". | Composition : Polyester or acetate magnetic tape on a hub or reel. | SOURCE : PSAP - Preservation Self-Assessment Program. AUDIOTAPE. University of Illinois at Urbana-Champaign Available at : https://psap.library.illinois.edu/collection-id-guide/audiotape Accessed : 05 aug. 2022.
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[ENG] Reels are wound on plastic or aluminium flange which diameter ranges from 3.1/4 to 10.1/2” for different playing time. Table below shows recording time referred to different speeds for standard and long, or extended, play tapes (one side only). You can use the table to covert the units of measure between the metric system and the Anglo-Saxon system and vice versa too. | SOURCE: http://www.soundfan.it/en/tapes.html
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