HP 3326A

This used HP 3326A is a dual channel synthesizer function generator designed for applications requiring two independently controllable, phase coherent signal sources. It offers a broad frequency range with stable, low distortion waveform output, making it a useful tool for testing circuits that require matched or phase related signals. The unit shows typical wear from field or lab service but continues to function as a capable dual channel signal source. Laboratories and test departments use this type of generator for applications such as differential signal testing, phase comparison studies, and dual channel filter analysis. The ability to run two synchronized outputs from a single chassis simplifies test setups that would otherwise require multiple instruments, saving bench space and reducing cabling complexity. Its GPIB interface allows the 3326A to be incorporated into automated test systems, extending its usefulness beyond manual bench work. This generator is well suited for electronics repair shops, calibration facilities, and engineering teams that need dual channel signal generation without investing in the newest generation of equipment. It remains a practical, cost effective option for buyers who want reliable HP build quality in a proven dual output configuration.