Power on delay circuits

Simple Speaker Turn-on Delay Circuit

Simple Speaker Turn-on Delay

Today we are going to introduce you to a Simple Speaker Turn-on delay Circuit. Imagine after you finish building your own OCL power amplifier circuit. But every time you turn it on, within the first 3 seconds, you hear a loud “tlub” sound from a speaker. Wouldn’t you feel annoyed by that sound? Apart from … Read more

Power on delay circuits and Surge protector without transformer

Power on delay circuit and Surge protector

This is Simple monitor turn on delay circuit, by use contact of relay acts as a switch. When entering an AC main to this circuit. The circuit will delay while Reduce the surge current protection with fuse. Read more