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* [[Media:050-040.pdf|Tektronix Modification Kit 050-040 for 131]] | * [[Media:050-040.pdf|Tektronix Modification Kit 050-040 for 131]] | ||
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The '''Tektronix Type 131''' is a current probe amplifier used only with the [[P6016]] current probe. Type 131s were never given serial numbers, instead, they were produced chronologically in "Models." Models 1 thru 3 looked alike, while Model 4 got a redesigned enclosure like that used later by the Type 134. | The '''Tektronix Type 131''' is a current probe amplifier used only with the [[P6016]] current probe. Type 131s were never given serial numbers, instead, they were produced chronologically in "Models." Models 1 thru 3 looked alike, while Model 4 got a redesigned enclosure like that used later by the [[134|Type 134]]. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||
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==Connectors== | ==Connectors== | ||
All models of the 131 use a [[BNC]] | All models of the 131 use a [[BNC connector|BNC input connector]]. | ||
The vast majority of 131s, including all the Models 1 thru 3, have a [[UHF]] | The vast majority of 131s, including all the Models 1 thru 3, have a [[UHF connector|UHF output connector]]. 131 Model 4s with UHF outputs were Tektronix #015-0029-00. | ||
A few very late 131 Model 4s were supplied with a locking [[BNC]] | A few very late 131 Model 4s were supplied with a locking [[BNC connector|BNC output connector]], as Tektronix #015-0050-00. | ||
==Internals== | ==Internals== | ||
All four Type 131 models used PNP transistors, thus requiring a negative power source. Models 1 thru 3 were hard-wired to their separate minus ~19 V power supplies, while Model 4 got a power supply, [[015-027]] for 115 V<sub>AC</sub>, with a proprietary Tektronix coaxial connector. While the | All four Type 131 models used PNP transistors, thus requiring a negative power source. Models 1 thru 3 were hard-wired to their separate minus ~19 V power supplies, while Model 4 got a power supply, [[015-027]], for 115 V<sub>AC</sub>, with a proprietary Tektronix coaxial connector. While the [[134|Type 134]] uses the same coaxial power supply connector, the power supplies are not interchangeable — Type 131 Model 4 will only work with the correct 015-027 power supply. | ||
See the | See the [[015-027|015-027 power supply page]] for more information. | ||
==Pictures== | ==Pictures== | ||