The Tektronix 013-0278-00 is a video display clamp that stabilizes video signals for oscilloscope analysis by clamping the back porch to a ground reference. This active signal processor addresses measurement challenges caused by 60 Hz ripple and DC offset, which can degrade waveform visibility and obscure accurate signal characterization. The clamp connects via Tekprobe BNC connector and conditions the incoming signal without altering the source, delivering a stable reference signal to the oscilloscope input.
Technical Specifications
• Interface: Tekprobe BNC connector
• Input Impedance: 1 MΩ (when connected to compatible oscilloscope set to 1 MΩ)
• Characteristic Impedance: 15 kΩ
• Sync Polarity: Selectable positive (+) or negative (−) to match source signal
• Clamp Filter: Selectable ON/OFF setting; OFF position for video signals without color burst
• Signal Conditioning Method: Back porch clamping to ground reference
– Key Features
• Selectable sync polarity accommodates both positive and negative sync pulse configurations
• Switchable clamp filter optimizes operation for color or non-color video content
• Active signal processor maintains signal integrity throughout measurement chain
• Supplied with 75 Ω terminator (part number 011-0055-01)
– Typical Applications
• Video signal monitoring and characterization
• Stabilization of video waveforms with DC offset or AC ripple components
• Performance verification of video signal sources
• Oscilloscope-based video signal analysis and troubleshooting
– Compatibility & Integration
The clamp interfaces with Tektronix oscilloscopes via Tekprobe BNC connection and functions with passive voltage probes including TPP1000 and TPP0500B models when used with appropriate adapter (part number 013036700). Instrument input impedance must be configured to 1 MΩ for specified performance.
