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-The Tektronix Type R is a plug-in for [[500-series scopes]].  It is designed to measure risetime of a NPN and PNP transistors,
+{{Plugin Sidebar
-but it works well with FETs as well.  It can operate in grounded-emitter or grounded-base configurations.
+|manufacturer=Tektronix
-In the grounded-emitter configuration, it provides a variable collector voltage through a collector resistor
+|series=500-series scopes
-which is used to sense the collector current.  It provides a base bias voltage and a base pulse signal,
+|type=Type R
-fed to the base of the transistor through a resistor.  The base pulse is generated by a [[mercury switch]]
+|summary=Tranistor rise-time test set
-and its rise time is specified to be less than 5 nanoseconds.
+|image=Tek_Type_R_Front–Tight.jpg
-Base and collector bias conditions can be set independently.  The collector signal is AC-coupled to
+|caption=Type R
-an amplifier whose output is fed to the oscilloscope.  The Type R has its own on-board low-voltage,
+|introduced=1958
-high-current regulated power supplies which feature germanium power transistors.
+|discontinued=1967
+|manuals=
+* [[Media:070-286.pdf|Tektronix Type R Manual]] (high quality scan, split schematics, OCR)
+* [[Media:070-286 whole schematics medium quality.pdf|Tektronix Type R Manual]] (medium quality scan, whole schematics, OCR)
+* [http://bama.edebris.com/manuals/tek/r/ Tektronix Type R Manual @ BAMA]
+* [[Media:tek_type_r_fcp.pdf|Tektronix Type R Factory Calibration Procedure]] (OCR)
+}}
+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.
+Type R 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 base pulse is generated by a [[mercury switch]] 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, high-current regulated power supplies which feature germanium power transistors.
 Type R was [[introduced in 1958]], along with the [[551]], [[533]], and [[543]] mainframes,
-and the Type [[H]] plugin.  It is the first plugin with transistors.  It was dropped after 1966 or 1967.
+and the Type [[H]] plug-in.  It is the first plug-in with transistors.  It was dropped after 1966.
-* http://bama.edebris.com/manuals/tek/r/
-* http://w140.com/tek_fcp/tek_type_r_factory_cal_proc.pdf
+==Pictures==
 <gallery>
-Image:Type_r_with_adapters.jpg
+Type_r_with_adapters.jpg|Type R plug-in with fixtures
-Image:Tek r sch1.png
+Tek type r front.jpg
-Image:Tek r ps schem.png
+Tek r left.jpg
+Tek r right.jpg
+Tek r top.jpg
+Tek r bottom.jpg
+Tek r sch1.png
+Tek r ps schem.png
+Tek type r with-386-852.JPG
+Tek type r double trigger.jpg
+Tek r late 1.jpg|Late serial number Type R
+Tek r late 2.jpg|Late serial number Type R
+Tek r late 3.jpg|Late serial number Type R
+Tek r late 4.jpg|Late serial number Type R
+Tek r late 5.jpg|Late serial number Type R
+Tek r late 6.jpg|Late serial number Type R
+Tek type r with 386-852.jpg|Type R with 386-852
+Tek type r fixtures.png|386-852, 386-853, 386-854, 386-855, 386-856, and 386-857 fixtures for use with Type R.
+Tek type r front2.jpeg
 </gallery>
+==Components==
+{{Parts|R}}
+[[Category:500 series plugins]]