…Looked Loop) oscillator circuit using a CMOS 4047 with a frequency of 22 KHz. Current drain is around 120mA. So, external power supply is recommended for better results. Source: http://www.zen22142.zen.co.uk/Circuits/Misc/insecrep.html…
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Simplest RF Transmitter
…may make experiment with all of the components value in this circuit. Nothing is critical in this circuit, but the performance can be varied considerably. Simplest RF Transmitter Source: http://www.sentex.net/~mec1995/circ/rft1.htm…
FM Voice Transmitter
…get the notion… Or it is possible to just lightly tap the microphone whilst searching for the location of the signal on your receiver. FM voice transmitter circuit source: http://www.sentex.ca/~mec1995/circ/fmt2.htm…
Easy Build FM Transmitter
…Components List: C1 = 1nF C2 = 5.6pF C3,C4 = 10uF/16V C5 = 3-18pF Varco/Varicap R1 = 270 Ohm 1/4W R2,R5,R6 = 4.7K 1/4W R3 = 10K 1/4W R4 =…
Digital DC Voltmeter based ICL7107 Chip
…IC LM7805 to achieve 5V stabilized voltage. This circuit will be good to display your power supply output. Components List: R1 = 8K2 R2 = 47K / 470K R3 =…
One Chip AM Radio Receiver
…try to find the equivalent IC for MK484. Download the complete explanation of this AM radio receiver circuit: [wpdm_file id=53] Note: The kit for this circuit is available at kitsrus.com….
50W Power Amplifier with IC TDA7294
…Suggested power supply for this audio amplifier: Download the explanation of this amplifier circuit in pdf format: [wpdm_file id=57] Download TDA7294 Datasheet: [wpdm_file id=56] Source: kitrus.com Kit version of the…
250mW RF Power Amplifier
…power amplifier circuit is available at kitsrus.com. You may download the kit manual including the information of schematic diagram, components list, and circuit works from the following link: 250mW RF…
DC Motor Speed Controller
…buy the circuit from electronickits.com Download the manual including the circuit diagram, parts list and the complete explanation (PDF file): DC Motor Controller Project Kit 1 file(s) 126.95 KB Download…
Automatic 9V Battery Charger
…The original circuit specified the HEF type of CMOS IC’s that are not readily on the market in most of worldwide country. So just get any other kind of CMOS…