ELECTRONIC MULTIPURPOSE INSTRUMENT FOR ENGINEER

The utility model discloses an applied electronic instrument, composed of muitiplex stabilized direct current power supply, standard digital signal source, a digital frequency meter, a simulated function signal generator, a direct current digital voltameter and a logical state tester. The utility model is provided with three sets of two-way symmetrical stabilized direct current power supplies, whose ground wires are respectively independent. The crystal oscillation source is not only the time base signal of the digital frequency meter, but also the pulse signal source of the digital dot frequency. Both of the digital frequency meter and the digital voltage meter have the function of internal display and external measurement. The instrument is characterized in compatible circuit, small size, simultaneous or single use of each function, application in design, test and detection of a digital circuit system, a simulated circuit system and integrated devices.