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{{Oscilloscope Sidebar |
{{Oscilloscope Sidebar  
title=Tektronix 212 |
|manufacturer=Tektronix
summary=500 kHz miniature dual channel analog scope |
|series=200-series scopes
image=Tek 212 1.jpg|
|model=212  
caption=Tektronix 212 |
|summary=500 kHz miniature dual channel analog scope  
introduced=(?) |
|image=tek212.jpg
discontinued=(?) |
|caption=Tektronix 212  
manuals=
|introduced=1973
* [http://w140.com/tek_212.pdf Tektronix 212 Manual (PDF)]
|discontinued=1991
|designers=Dave Allen
|manuals=
* [[Media:070-1375-00_typeset.pdf|Tektronix 212 Operator Manual]]
* [[Media:070-1375-00.pdf|Tektronix 212 Operator Manual - scanned]] (OCR)
* [[Media:070-1376-00.pdf|Tektronix 212 Service Manual]]
* [[Media:TM-9-6625-646-14&P.pdf|Tektronix 212 Military Manual]] (OCR)
* [[Media:Tek_21x_Scope_Battery_Replacement_050-1841-01.pdf|Tektronix 21X Battery Replacement 050-1841-01]]
}}
}}
The '''Tektronix 212''' is a small portable analog dual-trace CRT oscilloscope with a bandwidth of 500 kHz.
The '''Tektronix 212''' is a small portable analog dual-trace CRT oscilloscope with a bandwidth of 500 kHz.
The 212 "Miniscope" was developed by a group led by [[Dave Allen]].


{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Bandwidth | 500 kHz (reduced to 400/300/100 kHz in 5/2/1 mV/Div ranges) }}
{{Spec | Bandwidth | 500 kHz (reduced to 400/300/100 kHz in 5/2/1 mV/Div ranges) }}
{{Spec | Deflection | 1 mV/Div to 50 V/Div, 1-2-5, and variable (up to 125 V/Div) }}
{{Spec | Deflection | 1 mV/Div to 50 V/Div, 1-2-5, and variable (up to 125 V/Div), or X-Y (X via Ch1) }}
{{Spec | Sweep | 500 ms/Div to 5 μS/Div, 1-2-5, and variable magnifier 1-5 × }}
{{Spec | Sweep | 500 ms/Div to 5 μS/Div, 1-2-5, and variable magnifier 1-5 × }}
{{Spec | Input impedance | 1 MΩ // 140 pF (160 pF below 100 mV/Div) }}
{{Spec | Input impedance | 1 MΩ // 140 pF (160 pF below 100 mV/Div) }}
{{Spec | Trigger sensitivity | 0.2 Div internal, 1 V external }}
{{Spec | Trigger sensitivity | 0.2 Div internal, 1 V external ([[banana connector|banana jack]] input) }}
{{Spec | CRT | 6 × 10 divisions of 0.203" (5.16 mm), [[154-0699-00]] tube, P31 phosphor, 1 kV acceleration }}
{{Spec | CRT | 6 × 10 divisions of 0.203" (5.16 mm), [[154-0699-00]] tube, P31 phosphor, 1 kV acceleration }}
{{Spec | Power | 10 internal size A NiCd cells, 3-5 hour operation, or AC line, < 3 W }}
{{Spec | Power | 10 internal size A NiCd cells, 3-5 hour operation, or AC line, < 3 W }}
{{EndSpecs }}
{{EndSpecs }}
==Gerbers==
* [[Media:670-8208-00_Rectifier_Upgrade.zip|670-8208-00 Rectifier upgrade PCB files]] (ZIP)
==Links==
* [https://www.youtube.com/watch?v=wXTlq9ZJQYQ Tektronix 212 Portable Scope Repair] by NFM @ YouTube
==Prices==
{| class="wikitable"
|-
! Year
! 1986
|-
! Catalog Price
| $2,045
|-
! In 2023 Dollars
| $5,700
|}


==Pictures==
==Pictures==
<gallery>
<gallery>
File:Tek 212 1.jpg
tek212-front.jpg  | Front
File:Tek 212 2.jpg
tek212-front-right.jpg  | Front right
File:Tek 212 3.jpg
tek212-right.jpg  | Right
tek212-rear-right.jpg  |Rear right
tek212-left.jpg  | Left
tek212-bottom.jpg | Bottom
tek212-and-manual.jpg | With manual
tek212-inside-2.jpg | Internal
tek212-inside-3.jpg
tek212-inside-4.jpg | re-built battery pack
tek212-inside-1.jpg
Tek 212 1.jpg
Tek 212 2.jpg
Tek 212 3.jpg
</gallery>
</gallery>
==Components==
{{Parts|212}}


[[Category:200 series scopes]]
[[Category:200 series scopes]]
[[Category:Specifications needed]]
[[Category:Specifications needed]]

Latest revision as of 17:56, 9 December 2023

Tektronix 212
500 kHz miniature dual channel analog scope
Tektronix 212

Produced from 1973 to 1991

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 212 is a small portable analog dual-trace CRT oscilloscope with a bandwidth of 500 kHz. The 212 "Miniscope" was developed by a group led by Dave Allen.

Key Specifications

Bandwidth 500 kHz (reduced to 400/300/100 kHz in 5/2/1 mV/Div ranges)
Deflection 1 mV/Div to 50 V/Div, 1-2-5, and variable (up to 125 V/Div), or X-Y (X via Ch1)
Sweep 500 ms/Div to 5 μS/Div, 1-2-5, and variable magnifier 1-5 ×
Input impedance 1 MΩ // 140 pF (160 pF below 100 mV/Div)
Trigger sensitivity 0.2 Div internal, 1 V external (banana jack input)
CRT 6 × 10 divisions of 0.203" (5.16 mm), 154-0699-00 tube, P31 phosphor, 1 kV acceleration
Power 10 internal size A NiCd cells, 3-5 hour operation, or AC line, < 3 W

Gerbers

Links

Prices

Year 1986
Catalog Price $2,045
In 2023 Dollars $5,700

Pictures

  • Front

    Front

  • Front right

    Front right

  • Right

    Right

  • Rear right

    Rear right

  • Left

    Left

  • Bottom

    Bottom

  • With manual

    With manual

  • Internal

    Internal

  • re-built battery pack

    re-built battery pack

Components

Some Parts Used in the 212

Part Part Number(s) Class Description Used in
154-0699-00 154-0699-00 • 154-0699-50 CRT directly-heated CRT for miniature scopes 211 • 212 • SC501
155-0047-00 155-0047-00 Monolithic integrated circuit dual variable-gain amplifier 211 • 212 • 214
155-0048-01 155-0048-00 • 155-0048-01 • 155-0055-00 • 155-0055-01 Monolithic integrated circuit trigger sweep 211 • 212 • 213 • 214 • 432 • 433 • 5B12N • 5B13N • 5L4N • 603 • 604 • 605 • 606 • 606A • 607 • 624 • SC501 • R7912
155-0083-00 155-0083-00 Monolithic integrated circuit dual operational amplifier and dual current source 212 • 214
2N4851 151-0504-00 • 151-0504-01 Discrete component silicon unijunction transistor DC501 • DC502 • DC503 • DC503A • DC504 • DC505 • DC505A • DC508 • DC508A • LA501 • R1330 • 212 • 214 • 4002A • 4623 • 4631 • 4632 • 4633A • 4634 • 4701 • 4701R • 670-0696-01 • 670-1274-00 • 670-1981-00 • 670-1981-01 • 7D01 • 7D12 • 7L12
2N5060 151-0503-00 Discrete component 30 V, 0.8 A thyristor (SCR) CG551AP • C50 • C51 • C52 • C53 • C70 • DC505 • DC505A • DC508 • DC508A • 1240 • 1241 • 212 • 213 • 214 • 4014 • 4015 • 4025 • 4027 • 4105 • 4106 • 4107 • 4109 • 4111 • 450 • 4623 • 4631 • 4632 • 4633A • 485 • 5D10 • 5223 • 7D10 • 7D11 • 7L12 • 7L13 • 7L14 • 7L18 • 7912AD • 91HS8
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