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Variable inductor instead of varible capacitor in FM crystal set – Circuit Schematic
Variable inductor instead of varible capacitor in FM crystal set
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passive low pass filter remove RF – Circuit Schematic
passive low pass filter remove RF
Looking for resistor value and capacitor value for low pass filter to remove RF. The application is removing undesired untuned RF from the crystal set .....
Help with crystal radio circuit – Circuit Schematic
Help with crystal radio circuit
Ok first of all I am sort of a complete noob I made a `crystal` radio circuit from parts i got out of an old busted radio, a LM386N audio amplifier .....
Foxhole Radio tuning – Circuit Schematic
Foxhole Radio tuning
Hello everyone, this is my first post here. I am building my first circuit (outside of class) and am having trouble tuning my radio. What I have: So.....
FM Transmitter circuit – Circuit Schematic
FM Transmitter circuit
I wanted to use a 3. 5" jack instead of a microphone, I would need to change something else in the circuit. What would be changed in order to use an audio jack ...
Band Pass Filter Tutorial – Circuit Schematic
Band Pass Filter Tutorial
Electronics Tutorial about the Passive Band Pass Filter Circuit, including Passive RC Band Pass Filter First Order Frequency Response and Bode Plot.....
Varactor or varicap Diode – Circuit Schematic
Varactor or varicap Diode
A summary of the varactor or varicap diode used in many radio frequency circuits to provide an electronically variable capacitance ...
The Nic Nac Tic Tac Crystal Radio Set – Circuit Schematic
The Nic Nac Tic Tac Crystal Radio Set
Crystal radios have been around for over 100 years and exist in many different shapes, sizes and complexities. Some are definitely better than others, but wired...
AM To FM converter – Circuit Schematic
AM To FM converter
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How to distinguish between FM and AM transmitter circuits – Circuit Schematic
How to distinguish between FM and AM transmitter circuits
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BH1417 Stereo FM Transmitter – Circuit Schematic
BH1417 Stereo FM Transmitter
This new stereo FM Micromitter is capable of broadcasting good quality signals over a range of about 20 metres. It`s ideal for broadcasting music from a CD play...
Transmitter RF Output LED Indicator – Circuit Schematic
Transmitter RF Output LED Indicator
Transmitter RF Output LED Indicator Circuit Diagram This RF output detector circuit using a visual indicator can be useful for an RF.....
TDA7000 FM Radio Receiver Circuit – Circuit Schematic
TDA7000 FM Radio Receiver Circuit
TDA7000 FM Radio Receiver Circuit Using Tuning Capacitor GENERAL DESCRIPTION The TDA7000 is a monolithic integrated circuit for mono FM.....
FM Booster~Active FM Antenna Amplifier – Circuit Schematic
FM Booster~Active FM Antenna Amplifier
This FM booster that can be used to listen to programmes from distant FM stations clearly. The circuit comprises a common-emitter tuned RF preamplifier wired ar...
CXA1019 FM Radio – Circuit Schematic
CXA1019 FM Radio
CXA1019 FM RADIO CXA1019 is a one-chip FM/AM radio IC designed for radio-cassette tape recorders and headphone tape recorders, and CXA1019S has the.....
3V FM Transmitter – Circuit Schematic
3V FM Transmitter
3V FM Transmitter Circuit This project provides the schematic and the parts list needed to construct a 3V FM Transmitter. This FM transmitter is.....
VHF UHF Low-Noise amplifiers using MAX2664 MAX2665 – Circuit Schematic
VHF UHF Low-Noise amplifiers using MAX2664 MAX2665
These devices incorporate a broadband LNA with an integrated bypass switch. The MAX2664 covers the UHF frequency range from 470MHz to 860MHz, and the MAX2665 co...
VHF antenna amplifier circuit diagram – Circuit Schematic
VHF antenna amplifier circuit diagram
This RF antenna amplifier can be used for high frequency and VHF band ( for radio and TV) and will provide a 22 dB gain. This RF antenna amplifier electronic pr...
Varactorless high frequency modulator circuit design electronic project – Circuit Schematic
Varactorless high frequency modulator circuit design electronic project
This varactorless high frequency modulator electronic project, must be powered from a simple DC 3 volt power source ( you can use a 3 volt battery). Traditional...
UHF amplifier circuit – Circuit Schematic
UHF amplifier circuit
This UHF amplifier circuit electronic project can be useful in situations where the TV signal is weak. The UHF amplifier circuit has a gain of 10-15 dB in a fre...