131: Difference between revisions

Latest revision as of 14:15, 14 June 2024

Tektronix Type 131
Current Probe Amplifier Type 131 Model 4 Current Probe Amplifier Produced from 1960 to (?) Manuals Tektronix P6016 manual (includes 131 schematics) Tektronix Modification Kit 050-040 for 131 (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

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.

Key Specifications

Sensitivity	1 mA/Div to 1 A/Div, 1−2−5 (scope input fixed at 50 mV/Div)
Noise	0.1 mA_p-p
Risetime	20 ns (eq. 17 MHz −3 dB bandwidth)
Lower frequency limit	50 Hz
Delay time	32 ns typ.

(all specifications are overall values including the P6016 probe)

Connectors

All models of the 131 use a BNC input connector.

The vast majority of 131s, including all the Models 1 thru 3, have a 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 output connector, as Tektronix #015-0050-00.

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_AC, with a proprietary Tektronix coaxial connector. While the 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 015-027 power supply page for more information.

Pictures

Type 131 Model 3 Front
Type 131 Model 3 with P6016
Type 131 Model 3, with attached power supply
Type 131 Model 3, with UHF to BNC adaptor
Type 131 Model 3
Type 131 Model 3
Type 131 Model 3
Type 131 Model 3
Type 131 Model 3
Type 131 Schematic, Models 1-3
Type 131 Model 4 Front
Type 131 Model 4 Side View

@@ Line 1: / Line 1: @@
-[[File:Tek 131 front.jpg|thumb|250px|right|Type 131 current probe amplifier]]
+{{Instrument Sidebar
-The '''Tektronix 131''' is a Current Probe Amplifier for the [[P6016]] probe.
+|manufacturer=Tektronix
+|model=Type 131
-* [http://bama.edebris.com/download/tek/131/tek%20131.v6.pdf Tektronix P6016 manual] (includes 131 schematic)
+|class=Amplifier
+|series=
+|summary=Current Probe Amplifier
+|image=Tek 131 front.jpg
+|caption=Type 131 Model 4 Current Probe Amplifier
+|for=P6016
+|introduced=1960
+|discontinued=(?)
+|designers=
+|manuals=
+* [[Media:070-237.pdf|Tektronix P6016 manual]] (includes 131 schematics)
+* [[Media:050-040.pdf|Tektronix Modification Kit 050-040 for 131]]
+}}
+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}}
-{{Spec | Sensitivity | 1 mA/Div to 1 A/Div, 1-2-5 (scope input fixed at 50 mV/Div) }}
+{{Spec | Sensitivity | 1 mA/Div to 1 A/Div, 1−2−5 (scope input fixed at 50 mV/Div) }}
 {{Spec | Noise | 0.1 mA<sub>p-p</sub> }}
-{{Spec | Rise time | 20 ns (eq. 17 MHz -3 dB) }}
+{{Spec | Risetime | 20 ns (eq. 17 MHz −3 dB bandwidth)}}
 {{Spec | Lower frequency limit | 50 Hz  }}
 {{Spec | Delay time | 32 ns typ. }}
 {{EndSpecs}}
 (all specifications are overall values including the P6016 probe)
+==Connectors==
+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 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 connector|BNC output connector]], as Tektronix #015-0050-00.
+==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 [[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 [[015-027|015-027 power supply page]] for more information.
 ==Pictures==
 <gallery>
-File:Tek 131 front.jpg
-File:Tek 131 side.jpg
+Tek_p6016_131_3.jpg    | Type 131 Model 3 Front
-File:Tek 131 schem.png
+Tek_p6016_131_2.jpg    | Type 131 Model 3 with P6016
+Tek 131 early 1.jpg|Type 131 Model 3, with attached power supply
+Tek 131 early 2.jpg|Type 131 Model 3, with UHF to BNC adaptor
+Tek 131 early 3.jpg|Type 131 Model 3
+Tek 131 early 4.jpg|Type 131 Model 3
+Tek 131 early 5.jpg|Type 131 Model 3
+Tek 131 early 6.jpg|Type 131 Model 3
+Tek 131 early 7.jpg|Type 131 Model 3
+Tek 131 schem.png|Type 131 Schematic, Models 1-3
+Tek 131 front.jpg      | Type 131 Model 4 Front
+Tek 131 side.jpg       | Type 131 Model 4 Side View
 </gallery>
 [[Category:Oscilloscope current probes]]
-[[Category:Introduced in 1960]]