Classic Electronic Restoration, Vacuum Tube Audio, Technical History, Photography
The HP 8443A is a compact, rackable tracking generator and frequency counter designed to work with HP spectrum analyzers; it produces a swept CW output that follows the analyzer marker for easy swept-response and markerโbased measurements, while offering a builtโin counter and stable 1 MHz timebase for accurate frequency readout. Overview The HP 8443A Tracking…