THD Electronics was created in 1986.
It seems like your question is incomplete or unclear. If you're referring to "THD" in the context of audio or electronics, it stands for Total Harmonic Distortion, which measures the distortion in a signal. A lower THD percentage generally indicates better sound quality. If you meant something else by "thd," please provide more context for a more accurate response.
DOD and THD
What is the THD
It is Total Harmonic Distortion, and has to do with how "clean" the output power is. For those of us in the lighting and electrical world, THD refers to the Harmonic Distortion present with most electrical equipment, and more specifically now, the distortion present with electronic ballasts. THD is the measurement of the distortion created from the equipment's current draw. True resistive loads, such as an incandescent light bulb, do not have THD. Equipment containing coils and capacitors, such as motors, drives, fluorescent lighting and HID lighting, have some measure of THD.
Fry's Electronics was created in 1985.
Popular Electronics was created in 1954.
Visions Electronics was created in 1981.
Neve Electronics was created in 1961.
Maplin Electronics was created in 1972.
Pamir Electronics was created in 1988.
Jensen Electronics was created in 1915.
Onida Electronics was created in 1981.