2245: Difference between revisions

Revision as of 22:26, 6 June 2019

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100 MHz portable 4-channel scope

Produced from 1988 to 1995

Manuals

Tektronix 2245/2246 Specifications (PDF)

Tektronix 2245A Service Manual (PDF)

Tektronix 2245A Option 15 Manual (PDF)

(All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 2245 is a 100 MHz four-channel analog oscilloscope. 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 2245 includes features like AUTO SETUP automatically adjusts vertical, horizontal, and triggering and display controls to provide a stable, triggered display of the waveform in seconds; Dual Time base with Delayed Sweep; Cursor Time/Voltage Measurements; On-Screen Scale Factor Readouts.

Key Specifications

Bandwidth	100 MHz
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%
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 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)
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
Cursors	Time, 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	100 W max, 90 − 250 V_AC, 48 − 445 Hz

Repair Information

2245 Power Supply Repair Information

Links

Backup Battery in Tek 2245A

Pictures

2245A
2245A

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 The '''Tektronix 2245''' is a 100 MHz four-channel analog oscilloscope.  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 the same features of the 2245 plus STORE/RECALL SETUP up to different 20 front panel setups and can be arranged in sequence as required for specific applications.  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 2245 includes features like AUTO SETUP automatically adjusts vertical, horizontal, and triggering and display controls to provide a stable, triggered display of the waveform in seconds; Dual Time base with Delayed Sweep; Cursor Time/Voltage Measurements; On-Screen Scale Factor Readouts.
 {{BeginSpecs}}