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647: Difference between revisions
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The 647 is a 50 MHz oscilloscope with plug-ins for both vertical and horizontal deflection. The intent was to offer a higher performance scope in a small form factor, roughly the size and weight of the [[560-series_scopes|560 series]]. The system is nearly all solid state, the exception of the three [[5642]] HV rectifier tubes used in the CRT circuit. The 647 was promoted as “ruggedized” with an extended operating temperature range, and higher shock and vibration ratings | The 647 is a 50 MHz oscilloscope with plug-ins for both vertical and horizontal deflection. The intent was to offer a higher performance scope in a small form factor, roughly the size and weight of the [[560-series_scopes|560 series]]. The system is nearly all solid state, the exception of the three [[5642]] HV rectifier tubes used in the CRT circuit. The 647 was promoted as “ruggedized” with an extended operating temperature range, and higher shock and vibration ratings than previous lab grade instruments. The 647 was [[introduced_in_1963|introduced in late 1963]], along with a minimal set of plug-ins. It was replaced by the higher bandwidth [[647A]] in 1967. | ||
The 647 uses 10 series vertical and 11 series time base plug-ins. At introduction, the [[10A2]] a dual channel 50 MHz vertical, [[11A1]] single time base, and [[11A2]] dual time base were offered. The plug-ins were unique to the 647 and 647A. Unlike the threaded knob used for retaining the [[letter-series_plug-ins|530/540 series plug-ins]], the 647 used a lever actuated cam mechanism. The single lever both engaged and disengaged the plug-in with a quick, smooth motion. Many users considered it to be the best plug-in retaining system Tek had ever offered. | The 647 uses 10 series vertical and 11 series time base plug-ins. At introduction, the [[10A2]] a dual channel 50 MHz vertical, [[11A1]] single time base, and [[11A2]] dual time base were offered. The plug-ins were unique to the 647 and 647A. Unlike the threaded knob used for retaining the [[letter-series_plug-ins|530/540 series plug-ins]], the 647 used a lever actuated cam mechanism. The single lever both engaged and disengaged the plug-in with a quick, smooth motion. Many users considered it to be the best plug-in retaining system Tek had ever offered. | ||