The Tektronix 2247A is a 100 MHz four-channel analog oscilloscope with a built-in 200 MHz counter/timer. (It is unknown if a 2247 non-A model was ever built.)
Channels 1-2 are fully-functional, whereas 3-4 are limited in both deflection factor and coupling, as the are intended mainly for digital signals.
The 2247A has advanced features like automatic setup, tracking cursors, integrated voltmeter and counter/timer functions, and store/recall of 20 front panel setups.
|Deflection||CH 1,2: 2 mV/div to 5 V/div; CH 3,4: 0.1 V/div and 0.5 V/div, all ±2%|
|Vertical Operating Modes||CH1,2,3,4, CH2 Invert, Add, Alt, Chop (625 kHz)|
|Input Impedance||1 MΩ // 20 pF|
|Sweep Speeds||A Time Base: 0.5 s/div to 20 ns/div; B Time Base: 5 ms/div to 20 ns/div (×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|
|Counter/Timer||Freq, Period, Width, Totalize, Freq Ratio, Sec, 1/Sec, Phase, Rise/Fall Time, Prop Delay Time|
|Cursors||Time, 1/Time, Delta Time, 1/Delta Time, Delta Phase, Volts|
|Interface||Centronics (2252) Printers: Epson FX-Series (9- or 24-pin)|
|Probes||Two P6109 100 MHz ×10 probes, BNC connector with a readout pin|
|Power||100 W max, 90 − 250 VAC, 48 − 445 Hz|