The Heathkit oscilloscope is a series of oscilloscope kits produced by Heathkit, a company well-known for its electronic kits that allowed users to build and understand their own equipment. The oscilloscopes offered by Heathkit provide users with a visual representation of electrical signals, assisting in the analysis of waveforms. They typically feature a cathode ray tube (CRT) display, multiple channels for input signals, and adjustable time bases and voltage scales. Common applications include troubleshooting electronic circuits and inspecting signal performance in various devices. Specifications often vary depending on the model, but many Heathkit oscilloscopes can offer bandwidths ranging from 5 MHz to upwards of 100 MHz, with features such as triggering options, calibrated vertical sensitivity, and dual trace capability. The user-friendly design allows both beginners and experienced technicians to utilize these oscilloscopes effectively. Some popular models include the Heathkit OS-1, OS-2, and OS-3, which cater to diverse needs and preferences among electronics hobbyists and professionals alike.