Test and Measuring Instruments

The company, founded in 1946 by Joseph F. Keithley in a Cleveland, Ohio, workshop, designs, develops, manufactures and markets complex electronic instruments and systems geared to the specialized needs of electronics manufacturers for high-performance… more »

hp or  Hewlett-Packard  started as a T&M Firm.  Agilent  Technologies continued the Instrumentation Products after hp became a computer company.  Now Keysight Technologies is the new name for the Instrumentation Division.… more »

SpenceTek markets and services high quality test and measurement instruments manufactured by Topward Electric Instruments. Products of Topward include DC power supplies with a total of 68 models for voltage up to 60V and current up to 10A. Function… more »