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R: Difference between revisions
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In the grounded-emitter configuration, it provides a variable collector voltage through a collector resistor | 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, | 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 | fed to the base of the transistor through a resistor. The base pulse is generated by a [[mercury switch]] | ||
less than 5 nanoseconds. | and its rise time is specified to be less than 5 nanoseconds. | ||
Base and collector bias conditions 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, | 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. | high-current regulated power supplies which feature germanium power transistors. | ||