Make a four player Quiz buzzer circuit without microcontroller

In this video, I've explained how to make a Quiz Buzzer Circuit for Four players using D Flip-Flop IC 4013 and NOT gate IC 7408. In this, we do not need any kind of micro-controllers. Quiz buzzer circuit for 8 Players, video link: https://youtu.be/mljXSRayRuA --------------------------------------------------------------------------------- Facebook: https://www.facebook.com/digital.debajyoti/ Instagram: user name: digital.debajyoti Link: https://www.instagram.com/digital.debajyoti/ ------------------------------------------------------------------------------------------------ You want to support me to make more videos? Support me through Patreon- https://www.patreon.com/debajyotinath Support me through PayPal- https://www.paypal.com/paypalme/SanuDebajyoti