Since 1923 Johnson Components has been designing, manufacturing and distributing a broad line electronic components and equipment. They were the first company to produce a complete amateur transmitter, the Viking I, in 1949. Today their product line includes RF coaxial connectors, including MCX, MMCX, SMA, SMB (50 and 75 Ohm), SMC, BNC, TNC, UHF, Mini-UHF and type 'N' interfaces. Additional products include electronic hardware - test and tip plugs and jacks; banana plugs and jacks; binding posts, spacers, variable capacitors, tube sockets, RF Cable assemblies, RF cable terminations, RF test jacks and unique assembly tools and fixtures.