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{{Oscilloscope Sidebar | | {{Oscilloscope Sidebar | ||
|manufacturer=Tektronix | |||
summary=500 kHz miniature dual channel analog scope | | |series=200-series scopes | ||
image= | |model=212 | ||
caption=Tektronix 212 | | |summary=500 kHz miniature dual channel analog scope | ||
introduced= | |image=tek212.jpg | ||
discontinued= | |caption=Tektronix 212 | ||
manuals= | |introduced=1973 | ||
* [ | |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> | ||
tek212-front.jpg | Front | |||
tek212-front-right.jpg | Front right | |||
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 18:56, 9 December 2023
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
- Tektronix 212 Portable Scope Repair by NFM @ YouTube
Prices
Year | 1986 |
---|---|
Catalog Price | $2,045 |
In 2023 Dollars | $5,700 |
Pictures
-
Front
-
Front right
-
Right
-
Rear right
-
Left
-
Bottom
-
With manual
-
Internal
-
-
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 |