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The Tektronix 2246 is a 100MHz four channel* analog oscilloscope, with limited automatic measurement capability. It's part of a nearly identical family consisting of the [[2245]], 2246, [[2247]], and [[2252]].  
{{Oscilloscope Sidebar
|manufacturer=Tektronix  
|series=2000-series scopes
|model=2246  
|summary=100 MHz portable 4-channel scope
|image=USA Tektronix 2246A 0.jpg
|caption=Tektronix 2246
|introduced=1987
|discontinued=1995
|designers=
|manuals=
'''2246'''
* [[Media:070-6082-00.pdf|Tektronix 2246 Operators Guide]]
* [[Media:070-6083-00.pdf|Tektronix 2246 Operators Manual]]
* [[Media:070-7061-00.pdf|Tektronix 2246 Operators Manual SN B100100 and above]] (OCR)
* [[Media:070-6081-00.pdf|Tektronix 2246 Service Manual]]
* [[Media:070-7062-00.pdf|Tektronix 2246 1Y, 2R, and MOD A Service Manual]] (OCR) / ''[[Media:2246_service.pdf|alternate copy]]''
'''2246A'''
* [[Media:070-6556-01.pdf|Tektronix 2246A Operators Manual]]
* [[Media:070-6555-00.pdf|Tektronix 2246A Service Manual]]
{{ROM Images}}
* A16U2408: [[Media:160-5391-00.bin|160-5391-00]] / 160-4084-00
* A16U2519: [[Media:160-5063-11.bin|160-5063-11]] / [[Media:160-5063-00.bin|160-5063-00]] /<br /> [[Media:160-4082-01.bin|160-4082-01]] / 160-4082-00
* A16U2520: [[Media:160-4083-01.bin|160-4083-01]] / 160-4083-00
}}
The '''Tektronix 2246''' is a 100 MHz four-channel analog oscilloscope [[introduced in 1987]]. It was updated to the [[2246A]] in 1988.


Two channels are fully-functioned, and two are very limited, in both deflection factor and coupling.  
Channels 1-2 are fully-functional, whereas 3-4 are limited in both deflection factor and coupling, as they are intended mainly for digital and trigger signals.


* [http://www.ko4bb.com/Manuals/Tektronix/Tektronix_-_2245A/Tektronix_2245_2246_Specification.pdf Tektronix 2245/2246 Specifications (PDF)]
The 2246 includes many of the same features of the [[2245A]] and adds auto-tracking SmartCursors which track the selected measurement, trigger level, or ground. There are Labeled Volts Cursors with Ground-Referenced Readings and On-Screen Readouts; Hands-Off Voltmeter Measurements of DC Volts, +Peak and -Peak Volts, and P-P Volts; SmartCursors Integrate Voltage, Time, Frequency, and Phase Measurements, and are available in ALT and B Horizontal Modes.
* [http://www.ou.edu/aoi/images/Tektronix%202246%20Operators%20Manual.pdf Tektronix 2246 Operators Manual (PDF)]
 
* [http://w140.com/2246_service.pdf Tektronix 2246 Service Manual (PDF)]
The input buffer amplifier in the 2246A is the [[165-2232-00]].
 
{{BeginSpecs}}
{{Spec | Bandwidth | 100 MHz }}
{{Spec | Deflection | CH 1, CH 2: 2 mV/div to 5 V/div (1–2–5); CH 3, CH 4: 0.1 V/div and 0.5 V/div, all ±2%; BW Limit: 20 MHz ±15%  }}
{{Spec | Vertical Operating 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 Voltage | 400 V (DC + peak AC) or 800 V (p-p ac at ≤ 10 kHz) }}
{{Spec | Sweep Speeds | A Time Base: 0.5 s/div to 20 ns/div (1–2–5); B Time Base: 5 ms/div to 20 ns/div (1–2–5, ×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 | Trigger Source A & B | Vert, CH1, 2, 3, 4, Line }}
{{Spec | Voltmeter | DC, +Peak, −Peak, PK-PK, Gated Volts, Smart Tracking Cursors: Volts, GND, Trigger Lvl }}
{{Spec | Cursors | Time, 1/Time, Delta Time, 1/Delta Time, Delta Phase, Volts }}
{{Spec | Interface | Ext Counter/Timer Base Input connector; Ext Z-Axis Input connector }}
{{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}}
 
==Models==
* 2246
* 2246 1Y
* 2246 2R
* 2246 Mod A
* 2246A
 
==Links==
* See Also [[067-0557-00]]
{{Documents|Link=2246}}
{{Documents|Link=2246A}}
 
==Pictures==
<gallery>
USA Tektronix 2246A 0.jpg|2246A
Tek 2246 sine.jpg
Tek_2246_front2.jpg
Tek 2246 1.jpg
Tek 2246 2.jpg
Tek 2246 3.jpg
Tek 2246 4.jpg
Tek 2246 5.jpg
Tek 2246 6.jpg
2246(1).jpg
2246(2).jpg
2246(3).jpg
2246(4).jpg
2246A(1).jpg
2246A(2).jpg
</gallery>
 
==Components==
{{Parts|2246}}
{{Parts|2246A}}
 
 
[[Category:2246 series scopes]]

Latest revision as of 00:18, 10 October 2023

Tektronix 2246
100 MHz portable 4-channel scope
Tektronix 2246

Produced from 1987 to 1995

Manuals
ROM Images
File Pos. Checksum
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 2246 is a 100 MHz four-channel analog oscilloscope introduced in 1987. It was updated to the 2246A in 1988.

Channels 1-2 are fully-functional, whereas 3-4 are limited in both deflection factor and coupling, as they are intended mainly for digital and trigger signals.

The 2246 includes many of the same features of the 2245A and adds auto-tracking SmartCursors which track the selected measurement, trigger level, or ground. There are Labeled Volts Cursors with Ground-Referenced Readings and On-Screen Readouts; Hands-Off Voltmeter Measurements of DC Volts, +Peak and -Peak Volts, and P-P Volts; SmartCursors Integrate Voltage, Time, Frequency, and Phase Measurements, and are available in ALT and B Horizontal Modes.

The input buffer amplifier in the 2246A is the 165-2232-00.

Key Specifications

Bandwidth 100 MHz
Deflection CH 1, CH 2: 2 mV/div to 5 V/div (1–2–5); CH 3, CH 4: 0.1 V/div and 0.5 V/div, all ±2%; BW Limit: 20 MHz ±15%
Vertical Operating Modes CH1,2,3,4, CH2 Invert, Add, Alt, Chop (625 kHz)
Input Impedance 1 MΩ ±1.0% // 20 pF ±1 pF
Maximum Input Voltage 400 V (DC + peak AC) or 800 V (p-p ac at ≤ 10 kHz)
Sweep Speeds A Time Base: 0.5 s/div to 20 ns/div (1–2–5); B Time Base: 5 ms/div to 20 ns/div (1–2–5, ×10 magnifier to 2 ns/div)
Trigger DC, Noise Reject, HF Reject, LF Reject, AC, TV Line, TV Field
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)
Trigger Source A & B Vert, CH1, 2, 3, 4, Line
Voltmeter DC, +Peak, −Peak, PK-PK, Gated Volts, Smart Tracking Cursors: Volts, GND, Trigger Lvl
Cursors Time, 1/Time, Delta Time, 1/Delta Time, Delta Phase, Volts
Interface Ext Counter/Timer Base Input connector; Ext Z-Axis Input connector
Probes Two P6109 100 MHz ×10 probes, BNC connector with a readout pin
Power 90 − 250 VAC, 48 − 445 Hz, 100 W max.

Models

  • 2246
  • 2246 1Y
  • 2246 2R
  • 2246 Mod A
  • 2246A

Links

Documents Referencing 2246

(no results)

Documents Referencing 2246A

(no results)

Pictures

  • 2246A

    2246A

Components

Some Parts Used in the 2246

Part Part Number(s) Class Description Used in
155-0322-00 155-0322-00 Monolithic integrated circuit vertical output amplifier 2245A • 2246
156-2654-00 156-2654-00 Monolithic integrated circuit ECL "fast logic" 2245A • 2246
156-2655-00 156-2655-00 Monolithic integrated circuit "slow logic" 2245A • 2246
165-2154-00 165-2154-00 Hybrid integrated circuit buffer amplifier 2246
234-0203-20 234-0133-20 • 234-0203-20 • 234-0238-20 Monolithic integrated circuit amplifier 2245A • 2246
234-0401-20 234-0401-20 • 234-0401-21 Monolithic integrated circuit horizontal preamplifier 2245A • 2246
Intel 8086 Monolithic integrated circuit 16-bit microprocessor 1240 • 2220 • 2221 • 2230 • 2246 • 2232 • 2245A • 2782 • 4114 • 4115
M376-004 234-0204-20 • 234-0239-30 • 234-0239-31 Monolithic integrated circuit trigger 2245A • 2246
T4656 154-0905-00 CRT CRT 2245A • 2246 • 2246A • 2247A


Some Parts Used in the 2246A

Part Part Number(s) Class Description Used in
T4656 154-0905-00 CRT CRT 2245A • 2246 • 2246A • 2247A
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