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The Tektronix Type R is a plug-in for 500-series | The Tektronix Type R is a plug-in for [[500-series scopes]]. It is designed to measure risetime of a NPN and PNP transistors, | ||
but it works well with FETs as well. It can operate in grounded-emitter or grounded-base configurations. | |||
In the grounded-emitter configuration, it provides a variable collector voltage through a collector resistor | |||
which is used to sense the collector current. It provides a base bias voltage and a base pulse signal, | |||
fed to the base of the transistor through a resistor. The rise time of the base pulse is specified to be | |||
less than 5 nanoseconds. Everything can be set independently. The collector signal is AC-coupled to | |||
an amplifier whose output is fed to the oscilloscope. The Type R has its own on-board low-voltage, | |||
high-current regulated power supplies which feature germanium power transistors. | |||
* http://bama.edebris.com/manuals/tek/r/ | * http://bama.edebris.com/manuals/tek/r/ | ||
Revision as of 05:14, 5 July 2010
The Tektronix Type R is a plug-in for 500-series scopes. It is designed to measure risetime of a NPN and PNP transistors, but it works well with FETs as well. It can operate in grounded-emitter or grounded-base configurations. In the grounded-emitter configuration, it provides a variable collector voltage through a collector resistor which is used to sense the collector current. It provides a base bias voltage and a base pulse signal, fed to the base of the transistor through a resistor. The rise time of the base pulse is specified to be less than 5 nanoseconds. Everything can be set independently. The collector signal is AC-coupled to an amplifier whose output is fed to the oscilloscope. The Type R has its own on-board low-voltage, high-current regulated power supplies which feature germanium power transistors.
