Editing Instant-on (section)

==Consumer electronics==
In the past, consumer electronics manufacturers would emblazon radios and television sets with "Instant On" or "Instant Play" decals. In series filament sets, instant-on was accomplished by adding only a [[silicon diode]] across the power switch to keep tube filaments lit at 50% power; the diode was placed such that the typical half wave [[rectifier]] of the day was [[reverse-biased]]. Instant-on advantages included near-instant operation of the television or radio and potentially longer vacuum tube life; disadvantages included energy consumption and risk of fire. Most [[Solid state (electronics)|solid state]] consumer electronics are inherently instant-on, so the moniker survived into the early solid state era to differentiate a product from its vacuum-tube based brethren (with [[Cathode-ray tube|CRT]]s being a notable exception).