The most common phase testers show if an AC mains voltage is present at the wall output. They are typically known as the Live (L) connection. This useful AC mains […]
Archives for February 2021
Simple Voltage Controlled Oscillator Circuit
The circuit as shown in Figure below presents a 555 as an extremely simple, voltage-controlled oscillator (VCO). The VCO’s output frequency (U1) differs contrariwise with the input voltage. Using a […]
How to Make Logic Inverter, Buffer Gates using BJTs
Perhaps you have had desired just one single more logic gate or an logic inverter stage to complete that specific circuit design? Or you may at times realize that an […]


