企业单位的公用电视机常常是有人开机没人关机。家庭的电视机有时也会发生这种现象,孩子们看着看着节目就睡着了,忘了关机。这里介绍一种用两只三极管和一个小型继电器试制的电视机自动关机电路,当电视台节目结束后,电路能自动关掉电视机的电源。 Corporate television units are often someone switched off nobody boot. Occasionally, this phenomenon occurs in the family TV set. The children fall asleep watching the show and forget to shut down. Here is a trial of two transistors and a small relay TV automatic shutdown circuit, when the television program ends, the circuit can automatically turn off the TV’s power.