5CT1N: Difference between revisions

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Curve Tracer Plug-in for the 5000 series oscilloscopes.
{{Plugin Sidebar
|manufacturer=Tektronix
|series=5000-series scopes
|type=5CT1N
|summary=Curve tracer plug-in
|image=5ct1n-crop.jpg
|caption=5CT1N curve tracer
|introduced=1972
|discontinued=1988
|designers=Matt Zimmerman
|manuals=
* [[Media:070-1246-00.pdf|Tektronix 5CT1N Manual]]
* [[Media:062-1009-00.pdf|Semiconductor Device Measurements]] (''Concepts'' series)
}}
The '''Tektronix 5CT1N''' is a curve tracer plug-in for the 5000 series oscilloscopes, similar to the [[7CT1N]] for [[7000-series scopes]].
The 5CT1N was designed by [[Matt Zimmerman]].


{{BeginSpecs}}
{{Spec | DUT drive voltage (C-E) |
* positive (NPN or N channel) or negative (PNP or P channel) half-waves
* 7.5 V, 0.5 V/Div, 240 mA peak
* 30 V, 2 V/Div, 60 mA peak
* 75 V, 5 V/Div, 24 mA peak
* 300 V, 20 V/Div, 6 mA peak
* HV warning light on for > 50 V
* peak power 500 mW}}
{{Spec | DUT current display  |
* 10 μA/Div to 20 mA/Div, 1−2−5 steps (x 1 mode)
* 10 nA/Div to 20 μA/Div, 1−2−5 steps (x 1000 mode)}}
{{Spec | Base/Gate drive |
* 0 to at least 10 steps
* dual polarity
* variable offset, at least +/− 5 steps
* current mode: 1 μA/Step to 1 mA/Step in 1−2−5 sequence
* voltage mode: 1 mV/Div to 1 V/Div in 1−2−5 sequence, 1 kΩ current limit
}}
{{Spec | DUT connection | Three 4 mm jacks / binding posts}}
{{Spec | DUT adapters |
* [[013-0072-00]] Axial diodes
* [[013-0069-00]] Devices with long leads
* [[013-0070-01]] Transistors in TO-3 or TO-66 cases
* [[013-0074-00]] Transistors with stud leads
* [[013-0110-00]] Diodes with stud leads
* [[013-0112-00]] Transistors in TO-36 cases
* [[013-0128-00]] Transistors in TO-5 or TO-18
}}
{{EndSpecs}}
==Links==
* [[Matt Zimmerman]], ''Oscilloscope to Curve Tracer with one Plug-in.'' [[Media:Tekscope_1972_V4_N6_Nov_1972.pdf|Tekscope Vol. 4 No. 6, Nov 1972]], p.7
* [http://www.ke5fx.com/A_VTCT_Adapter_for_All_Tektronix_SCTs_W7PF.pdf Dennis Tillman: An Inexpensive Vacuum Tube Curve Tracer Adapter for All Tektronix Semiconductor Curve Tracers]
==Pictures==
<gallery>
<gallery>
Image:Tek-5ct1_in_use.jpg
5440.jpg | 5CT1N in [[5440]] mainframe vertical bay, X output connected to time base X input
Tek-5ct1_in_use.jpg| Displaying transistor curves
Tek 5ct1n f1.JPG
Tek 5ct1n front2.jpg
5CT1N 7CT1N Basic Measurement Reference Chart.jpg
</gallery>
</gallery>
Common Problems


C30 and C32 (100 uF, 25V) have a tendency to leak or short, causing associated resistors R30 and R32 (240, .25W, 5%) to overheat and fail. A good preventative maintenance procedure would be to replace these two capacitors with modern equivalents. Two 5CT1N units purchased online had this fault, and replacement of the capacitors and resistors restored proper operation.
==Common Problems==
 
C30 and C32 (100 μF, 25 V) [http://hakanh.com/dl/docs/hardtofind/CT1N.pdf are under-rated] and therefore have a tendency to leak or short,  
causing associated resistors R30 and R32 (240 Ω, 0.25 W, 5%) to overheat and fail.  
C30 and C32 should be replaced with modern equivalents rated above 35 V.  
 


[[Category:Curve tracers]]
[[Category:Curve tracers]]
 
[[Category:5000 series plugins]]
[[Category:Specifications needed]]
[[Category:Manual needed]]

Revision as of 04:57, 17 September 2022

Tektronix 5CT1N
Curve tracer plug-in
5CT1N curve tracer

Compatible with 5000-series scopes

Produced from 1972 to 1988

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 5CT1N is a curve tracer plug-in for the 5000 series oscilloscopes, similar to the 7CT1N for 7000-series scopes. The 5CT1N was designed by Matt Zimmerman.

Key Specifications

DUT drive voltage (C-E)
  • positive (NPN or N channel) or negative (PNP or P channel) half-waves
  • 7.5 V, 0.5 V/Div, 240 mA peak
  • 30 V, 2 V/Div, 60 mA peak
  • 75 V, 5 V/Div, 24 mA peak
  • 300 V, 20 V/Div, 6 mA peak
  • HV warning light on for > 50 V
  • peak power 500 mW
DUT current display
  • 10 μA/Div to 20 mA/Div, 1−2−5 steps (x 1 mode)
  • 10 nA/Div to 20 μA/Div, 1−2−5 steps (x 1000 mode)
Base/Gate drive
  • 0 to at least 10 steps
  • dual polarity
  • variable offset, at least +/− 5 steps
  • current mode: 1 μA/Step to 1 mA/Step in 1−2−5 sequence
  • voltage mode: 1 mV/Div to 1 V/Div in 1−2−5 sequence, 1 kΩ current limit
DUT connection Three 4 mm jacks / binding posts
DUT adapters

Links

Pictures

Common Problems

C30 and C32 (100 μF, 25 V) are under-rated and therefore have a tendency to leak or short, causing associated resistors R30 and R32 (240 Ω, 0.25 W, 5%) to overheat and fail. C30 and C32 should be replaced with modern equivalents rated above 35 V.