The Tektronix 211 is a single-channel, miniaturized analog oscilloscope engineered for portable field service and educational applications. This compact instrument delivers DC to 500 kHz bandwidth across most deflection factors, with vertical sensitivity from 1 mV/DIV to 50 V/DIV in 15 calibrated 1-2-5 steps. Internal and external triggering modes, calibrated sweep rates from 200 ms/DIV to 5 µs/DIV, and a magnifier extending sweeps to 1 µs/DIV enable precise signal capture in diverse environments. Battery or AC line operation with integrated charging supports extended field deployment.
Technical Specifications
Vertical System
• Bandwidth: DC to 500 kHz (10 mV/DIV to 50 V/DIV); DC to 100 kHz (1 mV/DIV)
• Deflection Factor: 1 mV/DIV to 50 V/DIV in 15 calibrated steps; ±5% accuracy
• Uncalibrated range extends to 150 V/DIV minimum
• Input impedance: 1 MΩ with 130 pF capacitance
• AC coupling lower limit: ~2 Hz
Horizontal System
• Calibrated sweep rates: 200 ms/DIV to 5 µs/DIV
• Magnifier: ≥5× extension; maximum sweep 1 µs/DIV or faster
• External horizontal: 1 V/DIV and 10 V/DIV; ±10% accuracy; DC to 75 kHz bandwidth
• External input: 500 kΩ impedance, 30 pF capacitance
Triggering
• Modes: Internal, External, AUTO-PRESET
• Internal sensitivity: 0.2 division AC-coupled, 2 Hz to 500 kHz
• External sensitivity: 1.0 to 20 V DC-coupled, DC to 500 kHz
• Display jitter: ≤0.5 µs at 500 kHz
CRT Display
• Type: P31 phosphor, 1 kV accelerating potential
• Graticule: 6 divisions vertical × 10 divisions horizontal; 0.203 inch (0.5 cm) per division
• Warm-up: 5 minutes to rated accuracy; usable display within 1 second
– Key Features
• Low-power cathode enables rapid display availability
• Single 1 kΩ vertical input with 600 V maximum safe voltage (50 V/DIV to 1 V/DIV settings)
• Dual-power architecture: rechargeable battery with AC charger or direct line operation
• Rugged construction for field-service durability
– Typical Applications
• Educational signal analysis and measurement training
• Field maintenance and troubleshooting of analog circuits
• Low-frequency signal monitoring in portable service environments
– Compatibility & Integration
Standard probe connection at vertical input. External signal input on horizontal channel for XY-mode operation.
