• Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.


  1. A

    Simple transconductance amp powered by [email protected]?

    Hi, I am trying to hook up some telecoms headsets to an audio mixing desk to make a 4-person intercom system on the cheap! I have a pro audio engineering background, but my analogue electronics is pretty rusty. I've made some interface boxes that simply convert the 4-pole TRRS headset jack to...
  2. sr13579

    How to add Next and Previous Button with Android's headset/earphones?

    I tried to figure out how to add different functionality with headset controller. So far I found how to make signals for volume up and down and play/pause. Now I want to add two switch which can do the next and previous operations. How am I supposed to do that?
  3. S

    Aviation headset test amp

    Hi I have occasion to work on aviation headsets occasionally and rather than buy an aircraft intercom to just use on the workbench, I am thinking there might be an easy solution with parts on my bench. The mics are called amplified electret. Spec sheet of a typical set is here...
  4. J

    Help repairing an Headset with dual jack connector

    Hi guys! This is my first post here because I'm in trouble finding a right solution to repair my headset. So this is my headset: And I broke to two jacks and lost them. The cable is cut before the plastic splitter and I´ve got an image with the cables. There are 1 green, 1 red, one copper...
  5. N

    Repairing QPAD QH-90 Headset

    Hi, so I have a QPAD QH-90 gaming headset that I am trying to repair. From the headset is a cable that then splits into a TRS plug for audio, and one for the microphone. The cable for the microphone broke behind the plug, so I was going to solder on a new plug. But the wires inside doesn't look...

Latest threads

EE World Online Articles