Here the short wave AM Transmitter circuit design diagram. The circuit is quite simple and easy to build since it applies only a few electronic components. The primary feature of this transmitter is that it really is absolutely free from the LC (inductor, capacitor) tuned circuit and runs using a fixed frequency of 12 MHz… Read More »
Here the cheap hearing aid to help people who have hearing loss. Commercially available assistive hearing devices are quite expensive. This is a cheap hearing aid device circuit which works by using just four transistors and several passive electronic components.
This is really a very simple home telephone ring tone generator circuit which is built with applying only several electronic components / parts. It generates simulated telephone ring tone and requires only DC supply with 4.5V DC to 12V DC voltage. One may possibly use this circuit in ordinary intercom or phone-type intercom. The sound… Read More »
Above circuit diagram is a easy, simple and cheap switching voltage regulator which has capability to deliver adjustable voltage output range of 1.8V to 32V and static electric current of 3A. This regulator use adjustable regulator IC of LM317HV and a power PNP transistor of 2N3792.
The following circuit is an distortion booster effect for your electric guitar. I don’t know whether this circuit is really works or not, you may try this circuit with your own risk. The circuit is very simple with required only ten electronic components : two transistors, two diodes, five resistors and two capacitors. Supply voltage… Read More »
The following diagram is the circuit diagram of 20 band stereo graphic equaliser which will controlling the audio signal in specific frequency range. The power supply used for this circuit is symmetrical (dual polarity) type, 15V DC.
Here’s the circuit diagram of a 70W stereo power amplifier which built using single power IC STA550. The circuit is simple and require little additional electronic components to support the work of IC STA550. This power stereo amplifier works with dual polarity / symmetrical power supply. Since based to the datasheet, the negative supply range… Read More »
This is a 220V LED flasher circuit which is intended as a reliable replacement to thermally-activated switches used for Christmas tree lamp-flashing. This a low cost circuit and easy to built since it only use little amount of electronic components.. Schematic diagram: Component Parts: R1_________ 100K R2,R5______ 1K R3,R6______ 470R R4_________ 12K C1_________ 1000uF 25V… Read More »
The following diagram is the circuit diagram of basic monostable multivibrator based IC timer 555. This circuit uses only 4 electronic components that are a timer IC, two capacitors and a resistor. Components List: A multivibrator is an electronic circuit used to implement a variety of simple two-state systems such as light emitting diodes, timers… Read More »