The TCA-1MEG is a High-impedance Buffer Amplifier System extends the capabilities of Tektronix high-performance oscilloscopes, making them ideal for a variety of general-purpose measurements. The TCA-1MEG amplifier system provides a 1MΩ path that is easily removed and replaced with a wide array of TekConnect probes, amplifiers and adapters. This amplifier system delivers versatility to Tektronix high-performance oscilloscopes through the addition of input coupling (selectable), bandwidth limit (selectable) and a 1MΩ input that provides access to a wide array of measurement solutions. These solutions include general-purpose passive probes, high-voltage probes (passive single-ended and active differential), microvolt differential probes and current probes.