electrical and electronic, diodes, electronic cable assemblies or harnesses, waveguide equipment and components, microwave amplifiers, attenuators, chip resistors, radio frequency (rf) filters, power metal oxide semiconductor field effect transistors (mosfet), oscillators, telecommunication systems or equipment, microwave connectors, high radio frequency (rf) bipolar transistors, wave guide switches, printed circuit board (pcb) fabrication services, radio frequency (rf) coils available from e-squared marketing inc based in commack, ny. click the links below to visit our website or contact us via our profile page.