The Tektronix P6240 is a 50 to 75 Ohm coaxial adapter designed to match impedance between incompatible 50 Ohm and 75 Ohm systems. Operating as an active FET probe tip adapter, it preserves signal integrity and minimizes reflections in high-frequency test environments where precise impedance control is critical. The handheld form factor integrates directly with Tektronix oscilloscopes and compatible test equipment.
Technical Specifications
• Impedance Conversion: 50 Ω to 75 Ω
• Maximum Voltage: 25 V peak
• Input Resistance: 1 MΩ
• Capacitance: 2.5 pF
– Key Features
• Active FET probe architecture for low-capacitance signal coupling
• Handheld probe tip adapter configuration for direct signal access
• High input impedance minimizes loading effects on circuits under test
– Typical Applications
• Telecommunications systems requiring impedance adaptation
• High-frequency laboratory measurements and signal integrity analysis
• Test environments where 50 Ohm and 75 Ohm equipment must interface
– Compatibility & Integration
The P6240 integrates with Tektronix oscilloscopes via TekProbe BNC interface connections. Operation with conventional BNC interfaces requires a Tektronix 1103 TekProbe Power Supply. The adapter is referenced for use with the Tek TLS 216 Logic Scope and supports standard COAX connector topologies found across Tektronix test instrument platforms.

















