Generally there are situations wherein a higher power Zener diode is essential and one is not easily accessible. Listed here is a circuit which using a power transistor can easily […]
Model Train Controller Circuit
A lot of model railway controllers possess the regrettable features of providing immediate starts and stops to the train which can make the model passengers nervous. The model train controller […]
Loudspeaker Power Indicator Circuit
This circuit will reveal the height level of an input signal placed on a speaker. It is mainly meant as a fool proof device when linked to an amplifier of […]
Variable Notch Filter Circuit
This variable notch filter circuit for enabling an adjustable audio frequency cancellation as desired by a specific application. A Notch Filter can also be named as Band Stop filter or […]
Simple Preamplifier Circuit
The circuit discussed is created to work like an universal preamplifier, by adjusting the value of one element, R1, you are able to look after the entire range of inputs […]
Sound Operated Switch Circuit
Sound triggered switches are employed in several applications, a few common illustrations being voice controlled tape recorders, baby alarms, burglar alarm systems, and VOX (voice managed switching) techniques of radio […]