Abstract: THE cathode-ray oscilloscope is a powerful tool for the maintenance of digital computers, but its use on a mobile cart is often awkward and does not permit the oscilloscope to be used to its ...

However, commercial apparatus which makes this possible, the oscillograph, the cathode-ray tube oscilloscope with “electronic-switches,” and double-beam cathode-ray tube oscilloscopes, have been ...

The cathode ray is practically free from inertia and therefore an ideal instrumentality for studying variations in electrical potential. A cathode ray oscilloscope with an amplifier system of high ...