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Thermal cutoff: Difference between revisions
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Thermal cutoff switches are common in all Tektronix oscilloscopes | '''Thermal cutoff switches''' are common in all Tektronix oscilloscopes | ||
starting in the mid- | starting in the mid-1950s. If the chassis gets above a certain | ||
temperature, typically about | temperature, typically about 128-133° Fahrenheit (53-56 °C), the switch | ||
opens. Typically this interrupts the mains power coming into the | opens. Typically this interrupts the mains power coming into the | ||
scope and the scope will cool down. Thermal cutoff switches used in | scope and the scope will cool down. Thermal cutoff switches used in | ||
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Certainly all of the 500-series scopes that take | Certainly all of the 500-series scopes that take | ||
[[letter-series and 1-series plug-ins]] have thermal cutoff switches. | [[letter-series and 1-series plug-ins]] have thermal cutoff switches. | ||
This also includes the [[127]], [[132]], and [[133]] powered plug-in | This also includes the [[127]], [[132]], and [[133]] powered plug-in enclosures. | ||
enclosures. | |||
The [[310|310A]] has an unusually high | The [[310|310A]] has an unusually high 165°F (74°C) thermal cutoff. | ||
This is due to the fact that the 310A is a compact tube scope without | This is due to the fact that the 310A is a compact tube scope without a fan. | ||
a fan. | |||
[[Category:Electromechanical components]] | [[Category:Electromechanical components]] | ||