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2221: Difference between revisions
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{{Oscilloscope Sidebar | | {{Oscilloscope Sidebar | ||
|manufacturer=Tektronix | |||
summary=60 (100) MHz portable DSO | | |series=2200-series scopes | ||
image=Tek 2221 front.JPG | | |model=2221 | ||
caption=Tektronix 2221 | | |summary=60 (100) MHz portable DSO | ||
introduced=1988 | | |image=Tek 2221 front.JPG | ||
discontinued=(?) | | |caption=Tektronix 2221 | ||
manuals= | |introduced=1988 | ||
* [[Media: | |discontinued=(?) | ||
* [[Media:070-8156-02.pdf|Tektronix 2221A User Manual ( | |designers= | ||
* [[Media:070- | |manuals= | ||
'''2221''' | |||
* [[Media:070-6531-00.pdf|Tektronix 2221 Service Manual]] | |||
* [[Media:070-6530-00.pdf|Tektronix 2221 Operators Manual]] (OCR) | |||
'''2221A''' | |||
* [[Media:070-8156-02.pdf|Tektronix 2221A User Manual -02]] (bad-OCR) | |||
* [[Media:070-8156-01.pdf|Tektronix 2221A User Manual -01]] | |||
* [[Media:070-8157-00.pdf|Tektronix 2221A Service Manual]] | |||
<small> | <small> | ||
'''Modifications ''' | '''Modifications ''' | ||
* [http://hakanh.com/dl/docs/kitinstructions/040-1344-00.pdf 040-1344-00 CRT Noise Reduction] (1991) | * [http://hakanh.com/dl/docs/kitinstructions/040-1344-00.pdf 040-1344-00 CRT Noise Reduction] (1991) | ||
'''Other''' | |||
* [[Media:2230_2221_2220.pdf|Tektronix 2230/2221/2220 Description]] (bad-OCR) | |||
</small> | </small> | ||
}} | }} | ||
The '''Tektronix 2221''' is a portable, 60 MHz, 20 MS/s combination analog / digital storage scope, sister model of [[2220]] and [[2230]]. | The '''Tektronix 2221''' is a portable, 60 MHz, 20 MS/s combination analog / digital storage scope, sister model of [[2220]] and [[2230]]. | ||
The updated model '''2221A''' increased bandwidth to 100 MHz and 100 MS/s. | The updated model '''2221A''' increased bandwidth to 100 MHz and 100 MS/s. | ||
Recommended cart is the [[K212]]. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
| Line 42: | Line 56: | ||
* TV line and field trigger | * TV line and field trigger | ||
* Variable holdoff | * Variable holdoff | ||
* GPIB | }} | ||
{{Spec | Options | | |||
* Opt.10 – GPIB (board 671-0304-00) | |||
* Opt.12 – RS232 (board 671-0303-00) | |||
}} | }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
| Line 48: | Line 65: | ||
==Links== | ==Links== | ||
* [http://www.hakanh.com/dl/docs/troubleshooting_tips_on_2200_ps.pdf Troubleshooting tips on 2200 PSU] | * [http://www.hakanh.com/dl/docs/troubleshooting_tips_on_2200_ps.pdf Troubleshooting tips on 2200 PSU] | ||
* [https://www.youtube.com/watch?v=n9qFlJmcxqo Tektronix 2230 Family Marketing Presentation] @ YouTube courtesy of the [https://vintagetek.org Vintage Tek Museum] | |||
==Internals== | |||
The 2230 is controlled by an [[Intel 8088]] microprocessor with firmware in a pair of 27512 EPROMs, and six TMS4426 16K×4 DRAMs. | |||
The A/D converter is a [[156-2248-00|Sony CX20052A]] (8 bit, 20 MHz, ECL output). A pair of MCM2016H 2K×8, 70 ns RAMs serve as acquisition memory. | |||
Custom Tek chips used include [[155-0274-00]] (A1U130, A1U180), [[155-0273-00]] (A2U30, A2U80), and [[155-0022-00]] (A10U2101). There is also a semi-custom part (A10U9208 Display Controller, 156-2452-00). | |||
==Pictures== | ==Pictures== | ||
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Tek 2221 ioclose.JPG | Tek 2221 ioclose.JPG | ||
</gallery> | </gallery> | ||
==Components== | |||
{{Parts|2221}} | |||
{{Parts|2221A}} | |||
[[Category:2200 series scopes]] | [[Category:2200 series scopes]] | ||