These four instrument types serve distinct purposes in electronic testing and measurement. A pulse generator creates precisely timed, short-duration electrical pulses used to trigger, stimulate, or test circuits and devices that respond to transient events — common in semiconductor testing, radar simulation, and laser triggering. A current generator (or current source) delivers a regulated, controllable electrical current independent of load impedance, essential for device characterization, sensor excitation, and electrochemical applications. A delay generator produces precisely timed trigger signals with programmable delays, used to synchronize multiple instruments in complex test setups — critical in time-resolved spectroscopy, particle physics, and multi-camera triggering. A signal generator creates continuous waveforms (sine, square, triangle, arbitrary) for testing amplifiers, filters, receivers, and communication systems. Berkeley Nucleonics manufactures pulse generators, delay generators (Model 577 Series), and arbitrary waveform generators (Models 670C through 686) — explore our full product line to find the right instrument for your application.