The Kikusui COS5020 is a dual-channel analog oscilloscope delivering 20 MHz bandwidth for electronic testing, measurement, and field service applications. This compact, aluminum diecast instrument combines lightweight construction with robust performance, incorporating a 6-inch CRT display with red internal graticule and 2.2 kV acceleration voltage for sharp trace definition at high sweep speeds. Purpose-built for laboratories, production environments, and educational settings, the COS5020 prioritizes operational efficiency through intuitive lever switches and push-button controls arranged for rapid access to frequently adjusted parameters.
## Technical Specifications
• **Bandwidth:** DC to 20 MHz (−3 dB)
• **Channels:** Dual
• **Vertical Sensitivity:** 1 mV/DIV maximum
• **Sweep Time:** 20 nsec/DIV maximum
• **CRT Display:** 6-inch rectangular tube with red internal graticule
• **CRT Acceleration Voltage:** 2.2 kV
• **Trigger Sensitivity:** Satisfies minimum +0.5 DIV (0.05 V) for 20:80 duty cycle, 50 Hz to 20 MHz repetition frequency
• **Power Requirements:** 90 / 250 V
• **Weight:** 6.80 kg (15.00 lbs)
## Key Features
• Trigger Level Lock function simplifies adjustment across regular, video, and large duty cycle signals
• TV sync triggering with automatic V/H switching synchronized to TIME/DIV control
• NORM and SINGLE trigger modes with READY state indication and resettable one-shot sweep
• Linear focus maintained automatically independent of intensity setting
• Temperature compensation circuit minimizes baseline drift and DC balance disturbance
• High stability performance sustained across operating conditions
## Typical Applications
• Electronic testing and measurement
• Research and development
• Production line verification
• Maintenance and field service
• Educational laboratory use
## Compatibility & Integration
The COS5020 operates as a standalone instrument and accepts standard oscilloscope probes and test leads. Accessory specifications are detailed in the product operation manual.
