2247A
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.)
The 2247A is part of a nearly identical family consisting of the 2245, 2246, 2247A, and 2252.
Channels 1-2 are fully-functioned, and 3-4 are very limited, in both deflection factor and coupling for digital signals.
Key Specifications
| Bandwidth | 100 MHz |
|---|---|
| Deflection | CH 1&2: 2mV/div to 5V/div; CH 3&4: 0.1V/div and 0.5V/div all at +/- 2% |
| Vertical Operating Modes | CH1,2,3,4, CH2 Invert, Add, Alt, Chop (625 kHz) |
| Input Impedance | 1M, 20pF |
| Sweep Speeds | A Time Base: 0.5s/div to 20ns/div; B Time Base: 5ms/div to 20ns/div (X10 Mag to 2ns/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) |
| Power | 100W Max, 90vac - 250vac, 48Hz - 445Hz |
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