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The Tektronix Type S is a plug-in for measuring semiconductor diode recovery characteristics. | The Tektronix Type S is a plug-in for measuring semiconductor diode recovery characteristics. | ||
It fits in 500-series scopes | It fits in [[500-series scopes]]. It can be thought of as having two parts: a | ||
stimulus subsystem and a measurement subsystem. The stimulus comes from mercury switch that | stimulus subsystem and a measurement subsystem. The stimulus comes from mercury switch that | ||
drives a 6GM8/ECC86 tube that operates in a current-steering mode. The measurement subsystem | drives a [[ECC86|6GM8/ECC86]] tube that operates in a current-steering mode. The measurement subsystem | ||
is a wideband amplifier that converts the single-ended voltage on the diode under test to the | is a wideband amplifier that converts the single-ended voltage on the diode under test to the | ||
differential signal that the oscilloscope mainframe takes. One terminal of the diode is grounded. | differential signal that the oscilloscope mainframe takes. One terminal of the diode is grounded. | ||