Createc: Difference between revisions

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}} was a German company founded by Manfred Koslar in Berlin in 1981.
}} was a German company founded by Manfred Koslar in Berlin in 1981.
[[File:ManfredKoslar.jpg|thumb|300px|right|Manfred Koslar]]
[[File:ManfredKoslar.jpg|thumb|300px|right|Manfred Koslar]]
Their only product line was a series of battery-powered, hand-held digital oscilloscopes. These scopes were re-branded by [[Gossen/Norma]] and [[Hitachi]]. Tektronix rebranded their entry modell as the [[T201]], but also offered this modell with a different user interface as the [[T202]].  
[[File:Createc_SC01.jpeg|thumb|300px|right|Createc SC01]]
Their only product line was a series of battery-powered, handheld digital oscilloscopes which were released in 1986. These scopes were also re-branded by [[Gossen/Norma]] and [[Hitachi]]. Tektronix rebranded the basic model as the [[T201]], but also offered the same model with a different user interface as the [[T202]]. The company probably closed in the early 1990ies (see link section).  


{{BeginSpecs}}
{{BeginSpecs}}
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{{Spec | External interface      | serial + parallel}}
{{Spec | External interface      | serial + parallel}}
{{Spec | Dimensions              | 257mm x 111mm x 48mm}}
{{Spec | Dimensions              | 257mm x 111mm x 48mm}}
{{Spec | Display resolution      | 128 x 128 pixel}}
{{Spec | Features |
{{Spec | Features |
* Signal processing (add, multiply, divide, multiply)
* Signal processing (add, subtract, multiply, divide)
* Cursor measurements
* Cursor measurements
* Zoom function
* Zoom function
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* partial automatic calibration
* partial automatic calibration
* Multimeter mode
* Multimeter mode
* Display maximum error of current measurements
* Independent timebases for each channel
* Auto scaling for X and Y available
}}
}}
{{Spec | Options |
{{Spec | Options |
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|align="center"| 6
|align="center"| 6
|align="center"| 6
|align="center"| 6
|align="center"| 5
|align="center"| 5(*)
|align="center"| 6
|align="center"| 6
|align="center"| 9
|align="center"| 9
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|align="center"| 2x128<br>or 1x256
|align="center"| 2x128<br>or 1x256
|align="center"| 2x128<br>or 1x256
|align="center"| 2x128<br>or 1x256
|align="center"| 2x182<br>or 1x128
|align="center"| 2x128<br>or 1x256
|align="center"| 2x256
|align="center"| 2x256
|align="center"| 2x2048
|align="center"| 2x2048
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|align="center"| 46
|align="center"| 46
|align="center"| 14
|align="center"| 14
|-
|Memory for<br>operational settings
|align="center"| 1
|align="center"| 1
|align="center"| 1
|align="center"| 10
|align="center"| 10
|align="center"| 10
|align="center"| 10
|-
|-
|serial+parallel<br>interface
|serial+parallel<br>interface
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|}
|}


* Same hardware - bandwidth difference probably only due to different measurement standards


==Block diagram==
==Block diagram==
Up until now no schematics are released. But Mr. Koslar luckily filed nearly 200 patents (including all country variants) during his life. Five of them are related to the SC series:
Service documents aren't available. But Mr. Koslar luckily filed nearly 200 patents (including all country variants) during his life. At least six of them are related to the SC series.
* [[Media:Createc_US4433303A.pdf|United States Patent 4433303A: Push-pull amplifier circuit with FETs]]
These patents not only include a block-level based functional description of the complete device - they also describe the functionality of the proprietary ICs.
* [[Media:Createc_US4746771A.pdf|United States Patent 4746771A: Slde switch]]
 
* [[Media:Createc_US4746771A.pdf|United States Patent 4746771A: Slide switch]]
* [[Media:Createc_US4839638A.pdf|United States Patent 4839638A: Programmable circuit for controlling a LCD]]
* [[Media:Createc_US4839638A.pdf|United States Patent 4839638A: Programmable circuit for controlling a LCD]]
* [[Media:Createc_US4897599A.pdf|United States Patent 4897599A: Signal processing device with a level adapter circuit]]
* [[Media:Createc_US4897599A.pdf|United States Patent 4897599A: Signal processing device with a level adapter circuit]]
* [[Media:Createc_US4906916A.pdf|United States Patent 4906916A: Signal processing device having high speed shift register]]
* [[Media:Createc_US4906916A.pdf|United States Patent 4906916A: Signal processing device having high speed shift register]]
* [[Media:Createc_DE3511605A1.pdf|German Patent DE3511605A1: Measuring instrument with a moving protective cover]]


These patents include a complete, block-level based function description:
<gallery>
<gallery>
Createc_blockdiag01.jpg|Block diagram of the createc SC series
Createc_blockdiag01.jpg|Block diagram of the Createc SC series
Createc_blockdiag02.jpg|Block diagram of the Createc SC series
Createc_blockdiag03.jpg|Block diagram of the cross multiplexer
Createc_blockdiag04.jpg|Block diagram of the data conversion processor
Createc_blockdiag06.jpg|Block diagram of the integration of the display processor
Createc_blockdiag07.jpg|Block diagram of the display processor
</gallery>
</gallery>


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* [[Media:Createc_SC_series_manual01.pdf|German version of the Createc SC series manual]]
* [[Media:Createc_SC_series_manual01.pdf|German version of the Createc SC series manual]]


==Links==
* [[https://www.wolfgangrobel.de/electronics/createc.htm A page about the Hitachi VC-5024 rebrand, but also some information about Createc
* [[https://vintagetek.org/t200-series-handheld-oscilloscopes/ page on vintageTEK on the introduction of the T200 series
* [[https://www.welt.de/print-wams/article607404/Manfred-Koslar-der-Meistertueftler-aus-Moabit.html 2002 article in German newspaper which mentions why and when Createc closed. [[Media:WAMS_article_Manfred_Koslar_2002_09_29.pdf|automatic english translation]]
* [[Media:Electronics-1986-04-14_page22.pdf|Electronics Magazine on the Createc SC series]]
* [[Media:Funkschau_1986_01.pdf|Funkschau Magazine on the Createc SC series]]
* [[Media:Funkschau_1986_02.pdf|Funkschau Magazine on Manfred Koslar and the SC series development]]
* [[T201]]
* [[T202]]


[[Category:Companies]]
[[Category:Companies]]

Latest revision as of 10:09, 4 December 2024

CREATEC Gesellschaft für Elektrotechnik GmbH was a German company founded by Manfred Koslar in Berlin in 1981.

Manfred Koslar
Createc SC01

Their only product line was a series of battery-powered, handheld digital oscilloscopes which were released in 1986. These scopes were also re-branded by Gossen/Norma and Hitachi. Tektronix rebranded the basic model as the T201, but also offered the same model with a different user interface as the T202. The company probably closed in the early 1990ies (see link section).

Key Specifications

Bandwidth 6/9 MHz
Resolution 7 bit (V)
Memory between 9 and 46 waveforms, depending on the model
Sampling rate 10 or 20MS/s, depending on mode and model
Single-shot performance 2MHz
External interface serial + parallel
Dimensions 257mm x 111mm x 48mm
Display resolution 128 x 128 pixel
Features
  • Signal processing (add, subtract, multiply, divide)
  • Cursor measurements
  • Zoom function
  • Waveform parameter measurements
  • partial automatic calibration
  • Multimeter mode
  • Display maximum error of current measurements
  • Independent timebases for each channel
  • Auto scaling for X and Y available
Options
  • Real time clock
  • parallel + serial interface
  • built-in drivers for various printers
  • improved "super twisted" LCD
  • dual analog path with 2 A/D converters
  • increased memory depth
  • DOS software (Createc Wave)
  • External battery pack + transport cases

Feature comparison

The T201+T202 are added for completeness only

SC01 SC01A T201
T202 		SC02 SC03 SC04 SC05
Bandwith (MHz) 6 6 5(*) 6 9 6 9
Single Shot (MHz) 2
Sampling rate (MS/S) 20 (10) 20 (10) 20 (10) 2x20 2x20 2x20 2x20
Memory depth
(record length) 		2x128
or 1x256 		2x128
or 1x256 		2x128
or 1x256 		2x256 2x2048 2x256 2x2048
Memory capacity
(waveforms) 		9 9 9 46 14 46 14
Memory for
operational settings 		1 1 1 10 10 10 10
serial+parallel
interface 		- - - - - Y Y
RTC - - - - - Y Y
Blue "super twisted"
LCD 		- Y . Y Y Y Y
  • Same hardware - bandwidth difference probably only due to different measurement standards

Block diagram

Service documents aren't available. But Mr. Koslar luckily filed nearly 200 patents (including all country variants) during his life. At least six of them are related to the SC series. These patents not only include a block-level based functional description of the complete device - they also describe the functionality of the proprietary ICs.

  • Block diagram of the Createc SC series

    Block diagram of the Createc SC series

  • Block diagram of the Createc SC series

    Block diagram of the Createc SC series

  • Block diagram of the cross multiplexer

    Block diagram of the cross multiplexer

  • Block diagram of the data conversion processor

    Block diagram of the data conversion processor

  • Block diagram of the integration of the display processor

    Block diagram of the integration of the display processor

  • Block diagram of the display processor

    Block diagram of the display processor


Manuals

Links

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