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Small FM radio receiver – Circuit Schematic
Small FM radio receiver
This circuit is FM radio receiver that very small size and works well, although the sensitivity is poor. The principle of this circuit is to use the generator.....
FM wireless transmitter circuit – Circuit Schematic
FM wireless transmitter circuit
This the fm wireless transmitter circuit, the truth is one kind microphone that developed to be used without a cable from the microphone to the amplifier. Makes...
A frequency multiplier in depth – Circuit Schematic
A frequency multiplier in depth
Most of the frequency multiplier circuit using IC phase locked loop (PLL).It will increase the frequency to an integer only. But this circuit can double the.....
fm schematics – Circuit Schematic
fm schematics
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fm schematic – Circuit Schematic
fm schematic
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Radio-Circuits – Circuit Schematic
Radio-Circuits
Radio-Circuits has raised the bar with this site. Unlike any other circuit site on the worldwide web, they have taken 10 of the most clicked into FM Transmitter...
Single Transistor FM Transmitter – Circuit Schematic
Single Transistor FM Transmitter
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designing a phantom antenna power supply system – Circuit Schematic
designing a phantom antenna power supply system
A design for a phantom antenna power-supply system compatible with the Digital Satellite Equipment Control (DiSEqC) communication standard, using the MAX16948 a...
Simple Long Range FM Transmitter with 2 Watt Power and 1-2 KM Range – Circuit Schematic
Simple Long Range FM Transmitter with 2 Watt Power and 1-2 KM Range
We know that building of Fm transmitter for first time is quite hard and we get confused about the components, parts, design, pcb, transmis.....
Tuned Radio Frequency (TRF) Receiver – Circuit Schematic
Tuned Radio Frequency (TRF) Receiver
Superheterodyne receivers have been mass-produced since around 1924, but for reasons of cost did not become successful until the 1930s. Before the second.....
Thunderstorm Predictor – Circuit Schematic
Thunderstorm Predictor
Sure, listening to VHF FM has great advantages over MW/LW AM from the old days now we have bright stereo free from interference, fading and noise! Howev.....
Simple AM Transmitter – Circuit Schematic
Simple AM Transmitter
There are not many AM transmitters that are easier to build than this one because the inductor is not tapped and has a single winding. There is no need to wind ...
Simple AM Radio Receiver – Circuit Schematic
Simple AM Radio Receiver
This circuit is essentially an amplified crystal set. The inductor could be a standard AM radio ferrite rod antenna while the tuning capacitor is a variab.....
Medium-Power FM Transmitter – Circuit Schematic
Medium-Power FM Transmitter
The range of this FM transmitter is around 100 meters at 9V DC supply. The circuit comprises three stages. The first stage is a microphone preamplifier bu.....
Foxhunt Transmitter – Circuit Schematic
Foxhunt Transmitter
This 2 meter 144 MHz fox hunt transmitter is used in amateur competitions where a hidden transmitter is to be “hunted” using mostly home brewed rece...
FM Wireless Microphone – Circuit Schematic
FM Wireless Microphone
Here is a very simple, inexpensive and interesting project which provides lot of fun to a home experimenter or hobbyist. This simple transmitter can trans.....
FM Stereo Transmitter – Circuit Schematic
FM Stereo Transmitter
You ll find that this is a very easy project to build. It will transmit good quality sound in the FM band ( 88 108 mhz ). One inportant item is that the.....
DRM Down-Converter For 455kHz IF Receivers – Circuit Schematic
DRM Down-Converter For 455kHz IF Receivers
This project came about due to my interest in a new form of radio transmission called DRM, which stands for Digital Radio Mondial.....
DCF77 Preamplifier – Circuit Schematic
DCF77 Preamplifier
A popular project among microcontroller aficionados is to build a radio-controlled clock. Tiny receiver boards are available, with a pre-adjusted ferrite.....
AM Modulator and 50W RF Output Stage – Circuit Schematic
AM Modulator and 50W RF Output Stage
The circuit presented here makes amplitude modulation possible, and it also has the significant advantage that it replaces the somewhat exotic and quite e.....