2247A

Manuals – Specifications – Links – Pictures

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 they are intended mainly for digital and trigger signals.

The 2247A includes the same features of the 2246 plus a Counter/Timer (C/T) integrated into the trigger system to provide many automated counting and timing measurements of frequency, period, width, totalize, frequency ratio, gated frequency, gated period, gated width, gated events, delta time, one-over-delta time, phase, rise/fall time, and propagation delay, using an internal or external frequency standard.

Key Specifications

Bandwidth	100 MHz; BW Limit: 20 MHz ±15%
Deflection	2 mV/div to 5 V/div, 1-2-5 (CH3/4: 0.1 V/div or 0.5 V/div); all ±2%;
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	0.5 s/div to 20 ns/div, 1-2-5; B timebase: 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)
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
Power	90 − 250 VAC, 48 − 445 Hz, 100 W max.

Standard probes: Two P6109 100 MHz ×10 passive probes

Links

Documents referencing 2247A

Prices

2247A

Year	Catalog price	In 2026 dollars
1989	$2,795	~$7,500
1993	$3,495	~$8,100

Pictures

• 

  Front

• 
• 
• 

Components

Some Parts Used in the 2247A