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{{Oscilloscope Sidebar | |||
|manufacturer=Tektronix | |||
|series=2000-series scopes | |||
|model=2245 | |||
|summary=100 MHz portable 4-channel scope | |||
|image=Tek2245.jpg | |||
|caption=Tektronix 2245A | |||
|introduced=1987 | |||
|discontinued=1995 | |||
|designers= | |||
|manuals= | |||
'''2245''' | |||
* Manual needed ''please add'' 2245 service manual | |||
* [[Media:070-6167-00.pdf|2245 Operators manual]] | |||
* [[Media:tek_2245_2246 specs.pdf|2245/2246 Specifications]] (OCR) | |||
'''2245A''' | |||
* [[Media:070-6558-01.pdf|2245A Operators manual]] | |||
* [[Media:070-6557-00.pdf|2245A Service Manual 070-6557-00]] (124MB) | |||
* [[Media:070-7672-00.pdf|2245A Service Manual 070-7672-00, SN B016000-up]] (OCR) | |||
* [[Media:2252_2247A_2245A_Specs.pdf|2245A/2247A/2252 Specifications]] (OCR) | |||
'''alternate copies''' | |||
* [https://www.ko4bb.com/manuals/download.php?file=Tektronix/Tektronix_-_2245A/Tektronix_2245_2246_Specification.pdf Tektronix 2245/2246 Specifications] | |||
* [https://www.ko4bb.com/manuals/download.php?file=Tektronix/Tektronix_-_2245A/Tektronix_2245A_Oscilloscope_Service_Manual.pdf Tektronix 2245A Service Manual] | |||
* [https://www.ko4bb.com/manuals/download.php?file=Tektronix/Tektronix_-_2245A/Tektronix_2245A_2247A_OPT15.pdf Tektronix 2245A Option 15 Manual] | |||
{{ROM Images}} | |||
'''2245A''' | |||
* A16U2408 [[Media:160-5391-00.bin|160-5391-00]] | |||
* A16U2519 [[Media:160-5063-09.bin|160-5063-09]] / [[Media:160-5063-04.bin|160-5063-04]] / [[Media:160-6500-02.bin|160-6500-02]], [[Media:160-6500-00.bin|160-6500-00]] | |||
* A16U2400 [[Media:160-3493-00.bin|160-3493-00]] SC84477P PDIP28 (68HC705?) | |||
}} | |||
The '''Tektronix 2245''' is a 100 MHz four-channel analog oscilloscope, introduced in 1987 (2245A in 1988). | |||
Channels 1 and 2 are full-featured, whereas 3 and 4 are limited in both deflection factor and coupling, as they are intended mainly for digital and trigger signals. | |||
The 2245 includes features like AUTO SETUP which automatically adjusts vertical, horizontal, and triggering and display controls to provide a stable, triggered display of the waveform in seconds. It offers a dual time base with delayed sweep, and cursor time/voltage measurements with on-screen readout of cursor data and scale factors. | |||
{{BeginSpecs}} | |||
{{Spec | Bandwidth | 100 MHz }} | |||
{{Spec | Deflection| CH 1, CH 2: 2 mV/div to 5 V/div in 1-2-5 seq; CH 3, CH 4: 0.1 V/div and 0.5 V/div, all ±2%; BW limit: 20 MHz ±15% }} | |||
{{Spec | Vertical modes | CH1,2,3,4, CH2 Invert, Add, Alt, Chop (625 kHz) }} | |||
{{Spec | Input impedance | 1 MΩ ±1.0% // 20 pF ±1 pF }} | |||
{{Spec | Maximum input | 400 V DC + peak AC, or 800 V<sub>p-p</sub> at ≤ 10 kHz) }} | |||
{{Spec | Sweep | A Time Base: 0.5 s/div to 20 ns/div in 1-2-5 seq; B Time Base: 5 ms/div to 20 ns/div in 1-2-5 seq (×10 magnifier to 2 ns/div) }} | |||
{{Spec | Trigger| DC, Noise Reject, HF Reject, LF Reject, AC, TV Line, TV Field }} | |||
{{Spec | Trigger modes| A Mode: Auto Level, Auto, Norm, TV Line, TV Field, Single Seq. B Mode: Runs After Delay, Auto Level, Norm, TV Line (From A Source) }} | |||
{{Spec | Cursors| Time, Volts }} | |||
{{Spec | Interface| Ext Counter/Timer Base Input connector; Ext Z-Axis Input connector }} | |||
{{Spec | CRT | Acceleration 16.4 (−2.7/+13.7) kV }} | |||
{{Spec | Probes| Two [[P6109]] 100 MHz ×10 probes, [[BNC connector]] with a [[readout pin]] }} | |||
{{Spec | Power| 90 − 250 V<sub>AC</sub>, 48 − 445 Hz; 100 W max. }} | |||
{{EndSpecs}} | |||
==Repair Information== | |||
* [[224x PSU Repairs|2245 Power Supply Repair Information]] | |||
==Links== | |||
[https://groups.io/g/TekScopes/topic/7646896 Backup Battery in Tek 2245A] | |||
==Pictures== | |||
<gallery> | |||
US Tektronix 2245A FrontRAW.JPG|2245A | |||
Tek2245.jpg | |||
Tek 2245a 4trace.jpg | |||
Tek 2245a square trace.jpg|2245A | |||
</gallery> | |||
==Components== | |||
{{Parts|2245}} | |||
{{Parts|2245A}} | |||
[[Category:2246 series scopes]] | [[Category:2246 series scopes]] | ||
[[Category: | [[Category:Manual needed]] | ||