Used TEKTRONIX 7904 #190788 for sale

TEKTRONIX 7904 is a high-end digital oscilloscope from the 1970s that is used in various measurement and test applications. The instrument consists of a mainframe, which houses the vertical channels, horizontal, and trigger circuitry, along with a CRT display. It has two vertical channels, each with a maximum input voltage of 100 V, that can measure voltage, current, frequency, and pulse width. It also features an X-Y mode, which can be used to visualize the polarization of electrical signals, as well as an external trigger input and an additional plug-in amplifier. 7904 offers a wide range of measurement and test features, including the ability to accurately measure input signals up to 4 GHz. It also features a trace buffer, which can store up to 256 points of waveforms on the CRT display. Other features include a selectable timebase range of 1 µs/div to 40 s/div, along with adjustable frequencies, amplitude, pulse width, and delay measurements. It also offers signal transient measurements, as well as a built-in auto-calibration and digital offset capabilities. In terms of accuracy, TEKTRONIX 7904 is capable of producing precision measurements of up to 0.4% in the vertical axis and 0.5% in the horizontal axis. Additionally, it offers an auto-calibration system, which ensures accurate measurements over a specified range of parameters. 7904 also features an eye pattern mode, which allows engineers to quickly assess the overall performance of a digital signal. TEKTRONIX 7904's X-Y mode allows engineers to view the relationship between two signals over a certain period of time. This feature can be used to analyze the rise and fall times of a signal or to detect any phase shifts that might occur. Additionally, 7904 can be used to visualize fundamental and harmonic distortion in signals, allowing engineers to troubleshoot faulty components. Overall, TEKTRONIX 7904 is an essential piece of test equipment for engineers working in precision industries. Its high-end features, accuracy, and scalability make it well-suited to a variety of different measurement and test applications.