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Using an NPN Transistor as a Relay

Make Your Own Relay Driver

How to Use Transistor as Relay | NPN Transistor as DC Switch | Best Relay Alternate for Arduino

Experiments Energizing a Relay using an NPN Transistor.

NPN Transistor based DC Relay Drive make Triggering source + voltage

How to make a simple relay circuit | Relay driver using transistor

NPN Transistor Based DC Relay Drive Make | Triggering Source (+) Voltage | Method-1| POWER GEN

Bipolar Junction Transistors Explained: Masterclass for IIT JAM & CSIR NET Aspirants | IIT JAM & NET

RELAY timer circuit w NPN TRANSISTOR ; automatic time delay standby switch for your tube amplifier

Build An Universal Relay Driver Circuit

Transistor Operated Relay Switch Circuit

using an transistor as relay

How To Use Transistors In YOUR Projects! || Transistors Explained || Transistors As A Switch

Simple Transistor relay circuit | Transistor as a switch

PNPTransistor based DC Relay Drive make | Triggering source (-)voltage | method-2

How Do Transistors Work? #electronics #transistor #IoT