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The single-hole cassette used the tape of compact cassette 3.81 mm (= 0.15 inch) wide only at a tape speed 1 + 7 ⁄ 8 inch = 4.7625 cm per second, rounded: 4.75 cm/s. To wind the tape back into the cassette, the single-hole cassette got onto its built-in tape reel ring gear with 8-teeth for traction, which represents the single hole.
These spools and their attendant parts are held inside a protective plastic shell which is 4 by 2.5 by 0.5 inches (10.2 cm × 6.35 cm × 1.27 cm) at its largest dimensions. The tape itself is commonly referred to as "eighth-inch" tape, supposedly 1 ⁄ 8 inch (0.125 in; 3.17 mm) wide, but actually slightly larger, at 0.15 inches (3.81 mm). [8]
As well as 1 ⁄ 4 in (6.4 mm) tape, studio and multitrack machines use tape widths of 1 ⁄ 2, 1, and 2 inches (12.7, 25.4, and 50.8 mm), and at least one 3 inches (76.2 mm) [citation needed] machine was available for a time. There is also a 35 mm width, but this variety is more similar to the motion picture stock of the same width. It is ...
The magnetic tape is a 5/8-inch (1.6 cm) wide and 0.05 mm thick Mylar 3M Co type 188. [3]: 11 The storage density is specified to 8 bits/mm, [3]: 4 and the access head is capable of simultaneous read/write operations. [3]: 3 The power requirement is three-phase 380 volts 50 Hz with 300 W when in standby and 750 W when active. Signaling for data ...
Introduced in mid-1976, [2] it was developed as a data storage mechanism for the HP 9820 programmable calculator. [3] The DC100 tape cartridge was a scaled-down version of the DC300 cartridge pioneered by 3M, and represents an early version of what is now referred to as the QIC Mini Cartridge .
It then became widely known under the designation "7,62мм винтовочный патрон" (7.62 mm rifle cartridge). The round has erroneously come to be known as the "7.62mm Russian" (and is still often referred to as such colloquially), but, according to standards, the R in designation (7.62×54mmR) stands for "rimmed", in line with ...
Figures of 15 mm, 20 mm, 25 mm, 28 mm, 30 mm, 32 mm, and 35 mm are the most common for role-playing and table-top games. Smaller figures of 2 mm, 6 mm, 10 mm, 15 mm, and 20 mm are used for mass-combat wargames. Large sizes such as 40 mm and 54 mm were popular with wargamers in the past and are still used by painters and collectors.
Standard 8 mm film, also known as Regular 8 mm, Double 8 mm, Double Regular 8 mm film, or simply as Standard 8 or Regular 8, is an 8 mm film format originally developed by the Eastman Kodak company and released onto the market in 1932. Super 8 (left) and Regular 8 mm (right) film formats. Magnetic sound stripes are shown in gray.