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2. Tire code - Wikipedia

   en.wikipedia.org/wiki/Tire_code

   Starting in 1972 tires were specified by load rating, using a letter code. In practice, a higher load rating tire was also a wider tire. In this system a tire had a letter, optionally followed by "R" for radial tires, followed by the aspect ratio, a dash and the diameter – C78-15 or CR78-15 for bias and radial, respectively. Each diameter of ...

3. Ignitron - Wikipedia

   en.wikipedia.org/wiki/Ignitron

   They are often used to switch high energy capacitor banks during electromagnetic forming, electrohydraulic forming, or for emergency short-circuiting of high voltage power sources ("crowbar" switching). An ignitron rated 56 amperes. Cooling jacket connections visible. In use the device was mounted so that the text would be upright.

4. List of vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_vacuum_tubes

   A compactron used in television sets to supply power to the anode of the picture tube. This tube is very rare, and very special, because it implements an indirectly heated cathode, not connected to the filament. No data is found on this tube, except for the filament power (which is 3.6 volts, 0.225 amps) and the base (which is the 12GQ type).

5. Inner tube - Wikipedia

   en.wikipedia.org/wiki/Inner_tube

   An inner tube is an inflatable torus that forms the interior of some pneumatic tires. [1] The tube is inflated through a valve stem and fits inside the tire casing. The inflated inner tube provides structural support and suspension, while the outer tire offers grip and protects the more fragile tube.

6. Bicycle tire - Wikipedia

   en.wikipedia.org/wiki/Bicycle_tire

   A tubed tire has a separate inner tube, made of butyl rubber, latex, or TPU (thermoplastic polyurethane) that provides a relatively airtight barrier inside the tire. [13] A vast majority of the tire systems in use are clinchers, due to the relative simplicity of repairs and wide availability of replacement inner tubes.

7. AOL Mail

   mail.aol.com/d?reason=invalid_cred

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!