5CT1N: Difference between revisions

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* [http://w140.com/smb/7ct1n_sm.pdf Tektronix 7CT1N Manual (OCR, PDF)]
* [http://w140.com/smb/7ct1n_sm.pdf Tektronix 7CT1N Manual (OCR, PDF)]
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The '''Tektronix 5CT1N''' is a Curve Tracer Plug-in for the 5000 series oscilloscopes, similar to the [[7CT1N]] for the 7000 series.
The '''Tektronix 5CT1N''' is a curve tracer plug-in for the 5000 series oscilloscopes, similar to the [[7CT1N]] for [[7000-series scopes]].


==Specifications==
{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | DUT drive voltage (C-E) |  
{{Spec | DUT drive voltage (C-E) |  
Line 37: Line 36:
{{Spec | DUT connection | Three 4 mm jacks / binding posts}}
{{Spec | DUT connection | Three 4 mm jacks / binding posts}}
{{EndSpecs}}
{{EndSpecs}}
==Links==
* [http://w140.com/tekscope_scans/Indiv_Issue_Scans/4-6_Nov_1972.pdf  Tekscope Vol. 4 No. 6, Nov 1972]


==Pictures==
==Pictures==
<gallery>
<gallery>
Image:5440.jpg | 5Ct1N in [[5440]] mainframe vertical bay, X output connected to time base X input
5440.jpg | 5Ct1N in [[5440]] mainframe vertical bay, X output connected to time base X input
Image:Tek-5ct1_in_use.jpg| Displaying transistor curves
Tek-5ct1_in_use.jpg| Displaying transistor curves
File:Tek 5ct1n f1.JPG
Tek 5ct1n f1.JPG
Tek 5ct1n front2.jpg
</gallery>
</gallery>


==Common Problems==
==Common Problems==


C30 and C32 (100 &mu;F, 25 V) have a tendency to leak or short, causing associated resistors R30 and R32 (240 &Omega;, 0.25 W, 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.
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, 0.25W, 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:5000 series plugins]]

Revision as of 18:07, 16 October 2017

Template:Plugin Sidebar 2 The Tektronix 5CT1N is a curve tracer plug-in for the 5000 series oscilloscopes, similar to the 7CT1N for 7000-series scopes.

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

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, 0.25W, 5%) to overheat and fail. C30 and C32 should be replaced with modern equivalents rated above 35 V.