Tektronix 2246 100 MHz 4 Channel Analog Oscilloscope - VGC - Tested
Tektronix 2246 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.
Condition: This scope was tested. You have the right to return it if it is not as described or functionally defective, satisfaction guaranteed. We did the functional test in all modes according to Tektronix's service manual. Calibration settings are still well within tolerance. The vertical and horizontal amps were adjusted with an Oscilloscope Calibrator/ Function Generator. The scope operates with a sharp, bright trace with plenty of brightness in reserve; no burn spots. All controls/buttons operated normally, very smooth without intermittent problem. Photos are the actual instrument you will receive, please review all photos as the over all condition is accurately represented. It does have scratches on the case over the years of service and use.
Opinion: The 2246 includes most features of Tektronix previous models (like the 2245) with some nice time saving function that were added such as auto tracking SmartCursors which track the selected measurement, trigger level, or ground. There are labeled cursors for Volts 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 2246 is one of the last analog oscilloscope from Tektronix. It's also one of the last Tektronix oscilloscopes repairable by component replacement! The 2246 is one the best overall analog scopes we have used.
The other 2246 features, specifically the the SmartCursors™ feature allow voltage measurements with on-screen cursors (see photos), visually indicate trigger level and ground, and make time measurements with cursors or alternate delayed sweep. It offers CRT readout and measures +peak, -peak, peak-to-peak, DC, gated volts, and waveform's voltage, timing, frequency. Four channels, 100 MHz bandwidth with 2 ns/div time base, on screen scale-factor readouts, flexible triggering including auto level and TV Line TV Field. Actually too many great features to mention them all.
Specifications Per Manual
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 Vlts, 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: One 100 MHz ×10 probes, BNC connector with a readout pin
Power:100 W max, 90 − 250 VAC, 48 − 445 Hz
What is included:
- Tektronix 2246 1Y 100 MHz Four Channel Oscilloscope
- Power cord
- 1x/10X switchable 100MHz probes