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The Tektronix 310 is a compact portable oscilloscope [[introduced in 1955]]. | The Tektronix 310 is a compact portable oscilloscope [[introduced in 1955]]. | ||
It is a 4MHz single-trace, single-timebase scope with a 3" (7.5cm) round CRT. | It is a 4MHz single-trace, single-timebase scope with a 3" (7.5cm) round CRT. | ||
== Cooling == | |||
The 310 is a tube scope and uses 175 watts, but it does not have a fan. | The 310 is a tube scope and uses 175 watts, but it does not have a fan. | ||
So it tends to run hot, particularly when used in a hot environment with still air. | So it tends to run hot, particularly when used in a hot environment with still air. | ||
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despite the fact that the components are packed more densely | despite the fact that the components are packed more densely | ||
than in other Tektronix scopes of the era. | than in other Tektronix scopes of the era. | ||
== 310A == | |||
There is also a revised version, the 310A, [[introduced in 1959]]. | There is also a revised version, the 310A, [[introduced in 1959]]. | ||
The 310 uses printed-circuit boards but the 310A | The 310 uses printed-circuit boards but the 310A | ||
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and in the circuit is one germanium point contact diode. | and in the circuit is one germanium point contact diode. | ||
Its bandwith is 4MHz. | Its bandwith is 4MHz. | ||
It is sometimes very | It is sometimes very useful because it contains a 1kHz calibrator output with up to 100V level combined with a step attenuator. | ||
Early examples of the Tektronix Type 310A used commodity 3WPx CRTs. At some point in production, | Early examples of the Tektronix Type 310A used commodity 3WPx CRTs. At some point in production, | ||