Tektronix 7603 Oscilloscope

The Tektronix 7603 is a 100 MHz bandwidth mainframe oscilloscope built on a modular architecture that accepts three plug-in compartments—two for vertical deflection units and one for horizontal sweep control. This configuration enables field-configurable measurement capability across digital design, communications, and spectrum analysis. Rise time of 3.5 ns and calibrated sweep rates down to 5 ns/div support precise transient capture. The 6.5-inch CRT displays an 8 × 10 division graticule with variable illumination and 15 kV accelerating potential. Writing speed exceeds 260 cm/µs with the optional high-brightness CRT. Rear panel outputs include sawtooth, gate, vertical signal, and Z-axis inputs, plus camera power. The instrument operates across 100–240 V selectable line voltage at power consumption under 170 W and supports ambient temperatures from 0 to +50 °C.

– Technical Specifications

• Bandwidth: DC to 100 MHz (standard); 110 MHz (7A19 plug-in); 70 MHz (7A18 plug-in)
• Rise Time: 3.5 ns
• Calibrated Sweep Rate: 5 ns/div
• CRT Display: 6.5-inch, 8 × 10 divisions (1.22 cm/div), 15 kV accelerating potential
• Writing Speed: Greater than 260 cm/µs (with Option 13 CRT)
• Power Consumption: Maximum 170 W
• Dimensions (approx.): 24 × 20 × 16 in; weight 50 lbs
• Operating Temperature: 0 to +50 °C
• Line Voltage: 100–240 V selectable, ±10%, 50–440 Hz

– Key Features

• Three plug-in compartments for vertical and horizontal flexibility
• Internal graticule with variable illumination
• Calibrator output: 40 mV to 4 V rectangular waveform (1 kHz) into 1 MΩ; 20 mV to 0.4 V into 50 Ω
• Calibrator amplitude accuracy within 1% (+15 to +35 °C)
• Sawtooth output: 1 V/div into 1 MΩ, 50 mV/div into 50 Ω
• Gate output: 10 V into 1 MΩ, 0.5 V into 50 Ω; rise time ≤ 20 ns into 50 Ω
• Vertical signal output: 0.5 V/div into 1 MΩ, 25 mV/div into 50 Ω
• Optional current-loop accessory for 40 mA output
• Rackmount version (R7603) available at 5.25-inch height

– Compatibility & Integration

The 7603 accepts Tektronix 7-Series plug-in units including 7A11, 7A16, 7A17, 7A18, 7A19, 7A24, and 7A26 for bandwidth and measurement specialization. Multiple CRT options provide brightness and graticule variants. Gate output selectable from Main, Delay, or Auxiliary trigger paths.