The Tektronix 2205 is a 20 MHz dual-channel analog oscilloscope engineered for service, educational, and hobbyist applications requiring reliable waveform capture and analysis. The instrument combines a bright 8 cm × 10 cm CRT display with versatile triggering modes and calibrated vertical deflection to support demanding bench-top measurements.
Technical Specifications
Vertical System
• Bandwidth: 20 MHz (−3 dB)
• Rise Time: 17.5 ns (5 to 35 °C)
• Deflection Factor: 5 mV/div to 5 V/div
• Deflection Accuracy: ±3% (15 to 35 °C), ±5% (0 to 40 °C)
• Input Impedance: 1 MΩ, 25 pF
• Maximum Input: 400 V DC + peak AC; 800 V pk-pk
• CMRR: ≥10:1 at 10 MHz
• Channel Isolation: 100:1 at 20 MHz
• Operating Modes: CH 1, CH 2, CH 2 IN-VERT, ADD, ALT, CHOP
Horizontal System
• Sweep Speeds: 0.5 s/div to 0.1 µs/div
• Magnified Sweep: 10 ns/div (X10 magnifier)
• Sweep Accuracy: ±3%; Magnified ±4% (±1% degradation outside 15 to 35 °C)
• Operating Modes: X1, X10, X-Y
Trigger System
• Internal Sensitivity: 0.30 div at 5 MHz, 1.0 div at 30 MHz
• External Sensitivity: 40 mV at 5 MHz, 150 mV at 30 MHz
• Operating Modes: Peak-Peak AUTO, NORM, TV FIELD, TV LINE, SGL SWP
• Source Options: VERT MODE, CH 1, CH 2, LINE, EXT, EXT/10
• Coupling: AC, DC
CRT Display
• Tube Size: 80 × 100 mm
• Nominal Voltage: 1.8 kV
• Z-Axis Input: 5 V produces noticeable modulation; usable to 5 MHz
Power & Environment
• Line Voltage: 115 V or 230 V nominal AC
• Line Frequency: 48 Hz to 440 Hz
• Operating Temperature: 0 °C to +40 °C
• Operating Vibration: 10 Hz to 55 Hz at 0.015 pk-pk
• Operating Shock: 30 g, 1/2 sine, 11 ms duration (3 shocks per axis)
– Key Features
• Dual independent channels with six operating modes including addition and inversion
• X-Y mode enables phase and Lissajous analysis
• Multiple trigger sources with both AC and DC coupling
• TV trigger for field and line synchronization
• Beam find and trace rotation controls for precise positioning
• Magnified horizontal sweep extends resolution to 10 ns/div
– Typical Applications
• Audio and general-purpose circuit troubleshooting
• Educational laboratory instruction
• Component and module characterization
• Hobby electronics development and verification
– Compatibility & Integration
Standard accessories include operator’s manual, two signal adapters, power cord, power cord clamp, fuses, washer, and screw.
