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Listen to UHF and SHF (GHz) Bands with this Simple Circuit

Last Updated on January 2, 2024 by Swagatam 20 Comments

GHz receiver circuit

This simple two IC circuit can be used for capturing and listening to frequencies in the GHz range. Receivers designed to cover frequencies as high as several gigahertz (which is many thousand MHz!) are generally difficult to find, specifically for anyone who is looking for cheap versions of these gadgets. However, it may be possible […]

Filed Under: Audio and Amplifier Projects Tagged With: Bands, Listen, SHF, Simple, UHF

Simple Refrigerator Protector Circuit

Last Updated on January 2, 2024 by Swagatam 104 Comments

This simple refrigerator protector circuit is actually a delay ON timer circuit which makes sure that whenever a power failure occurs or in case abrupt power fluctuations take place, the refrigerator is never allowed to switch ON instantly, rather after a delay of a few moments. Conventional Protection Features Today most modern refrigerators are equipped […]

Filed Under: Voltage Control and Protection Tagged With: Protector, Refrigerator, Simple

Simple Water Heater Alarm Circuit

Last Updated on January 2, 2024 by Swagatam 1 Comment

buzzer with timer circuit

In this post I have explained a simple water heater alarm circuit which may be used as a safety device for getting indications regarding the switched position of a water heater or a geyser through intermittent buzzer actuation. The idea was requested by Mr. Mathew. Technical Specifications To be frank i am new to your […]

Filed Under: Security and Alarm Tagged With: Alarm, Heater, Simple, Water

Simple Thermostat Circuit Using Transistors

Last Updated on January 2, 2024 by Swagatam 27 Comments

simplethermostatcircuit

The electronic thermostat explained here can be used to control the room temperature by appropriately switching (turning on and off) a heating device. By: R.K. Singh Operational details of electronic thermostat The circuit employs a thermistor NTC (negative temperature coefficient) as the sensor device. – As long as the ambient temperature stays higher than the […]

Filed Under: Temperature Controllers Tagged With: Simple, Thermostat, Transistors

How to Build a Simple Cloth Dryer for Rainy Season

Last Updated on January 2, 2024 by Swagatam 12 Comments

cloth1

In this post I have explained a simple homemade electric cloth dryer circuit using iron heater coil assembly which can be used for drying clothes at home during rainy season or overcast conditions. The idea was requested by Mr. Nelson. Circuit Objectives and Requirements I have read through some of the topics explained at your […]

Filed Under: Home Electrical Circuits Tagged With: Build, Cloth, Dryer, Rainy, Season, Simple

Make this Simple Washing Machine System

Last Updated on January 1, 2024 by Swagatam 9 Comments

simple2Bwashing2Bmachine

In this post I have explained how to make a simple washing machine using a single motor and a cam shaft mechanism, cheaply. The Concept Washing machines are costly devices which may not be affordable for a section of the population and also to villagers who even might not have an easy access to these […]

Filed Under: Home Electrical Circuits, Motor Controller Tagged With: Machine, Simple, System, Washing

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