American Technical Ceramics Corp. (ATC) designs, develops, manufactures and markets Multilayer Capacitors, Single Layer Capacitors, Resistive Products, Inductors and Custom Thin Film Products for RF, microwave and millimeter-wave applications. Their products are primarily focused on the wireless communications infrastructure, fiber optic, medical electronics, semiconductor manufacturing equipment, defense, aerospace, and satellite communications markets. The ATC 7DT-2CH Series 7 Day Timer is a DIN Rail Timer, ideally suited for timing applications needing a daily or weekly schedule. The clear LCD display provides visible indication of output, mode, day and time. 2013 Recommended Components Loudspeakers Loudspeaker Systems Editor's Note: Class A "Loudspeakers" are sufficiently idiosyncratic and differ enough from one another that prospective customers should read Stereophile's original reviews in their entirety for descriptions of the sounds.

the ATC 319 maintains excellent repeat accuracy despite wide voltage and temperature variations, even after long periods of down-time. One model has five dial-selected adjustable ranges and provides any timing period between 0.02 SEC and 30 MIN; Lower-cost models incorporate three dial-selected ranges or a single adjustable range. The ATC 422 FLIP-FLOP has six selectable timing ranges for the ON-time period and 6 selectable ranges for the OFF-time period. The ranges are 1 and 10 SEC/MIN/HRS. This ATC TDR has universal voltage input, 12-240vdc and 20-240 VAC with 10 amp contacts. The ATC 422 uses the 8 PIN (Octal) socket common on most small TDR's.