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MOSFET FM Transmitter Circuit – Circuit Schematic
MOSFET FM Transmitter Circuit
This mosfet fm transmitter circuit is designed to be used for aligning FM radio receivers. It has a microphone amplifier with automatic gain control. The FM mod...
Simple TV Transmitter Circuit – Circuit Schematic
Simple TV Transmitter Circuit
This is a small tv transmitter circuit wich trasmittes in VHF, negative sound modulation and PAL video modulation. It is suitable in countries where the B and G...
UHF Antenna Amplifier Circuit – Circuit Schematic
UHF Antenna Amplifier Circuit
This amplifier circuit is used to amplify TV signals in UHF range. It uses a low-noise transistor and gives 10 to 15 dB amplification in the frequency range fro...
88 108 MHz FM Transmitter Circuit – Circuit Schematic
88 108 MHz FM Transmitter Circuit
The most important part of this 88-108 transmitter is the Colpitts oscillator. C3,C4,C5,C6,CD1-CD2 ans L1 determine the transmission frequency. The RF Osci.....
RF Field Strength Meter Circuit – Circuit Schematic
RF Field Strength Meter Circuit
A sensitive and reliable rf field strength meter is an invaluable instrument in amateur radio and in radio controlled model area. A field strength meter is used...
Simple Cable TV Amplifier Circuit – Circuit Schematic
Simple Cable TV Amplifier Circuit
This cable tv amplifier circuit is a rf amplifier designed to be quickly installed between two coaxial cables. Both input and output impedances are compatible w...
SW Receiver Preselector Circuit – Circuit Schematic
SW Receiver Preselector Circuit
This is a Preselector for SW receivers (diy hf preselector) circuit. The entry low capacitance of MOSFET modern, with two gates, will create negative inverse re...
144MHz Radio Beacon Circuit – Circuit Schematic
144MHz Radio Beacon Circuit
The transmitter on 2 meters 144 MHz was designed mainly for use by radio amateurs as radio beacon and to this end, it produces a signal of good quality and.....
900 MHz Radio Amplifier Circuit – Circuit Schematic
900 MHz Radio Amplifier Circuit
This 900 MHz Amplifier Circuit is built with BFG480W which has a good linearity performance. Therefore the BFG480W is well suited for LNAs with high linear.....
Car Antenna Amplifier Circuit – Circuit Schematic
Car Antenna Amplifier Circuit
The total gain of the car antenna amplifier is around 30 dB and the input impedance at 30 Mhz is around 10 K ©. The amplifier must be mounted directly at the b...
UUS 65 - 73 MHz FM Transmitter – Circuit Schematic
UUS 65 - 73 MHz FM Transmitter
A basic UUS 65 73 MHz fm transmitter circuit schematic which can be used as UUS oscillator with no explanation 65 - 73 MHz transmitter ( oscillator ) c.....
BLY94 50W RF Amplifier Circuit – Circuit Schematic
BLY94 50W RF Amplifier Circuit
This fm rf power amplifier circuit is built with BLY94 transistor which delivers up to 50W at 175MHz and has a power gain of 7dB, arround 5x power amplification...
Small TV Transmitter Circuit – Circuit Schematic
Small TV Transmitter Circuit
This small video transmitter is very usefull for video surveillance on short distances ( up to 100m ) equipped with a black and white or infrared camera module ...
USB FM Transmitter Circuit – Circuit Schematic
USB FM Transmitter Circuit
A simple USB FM transmitter that could be used to play audio files from an MP3 player or computer on a standard VHF FM radio by connecting it to an USB port. Th...
RF Switch with Pin Diode – Circuit Schematic
RF Switch with Pin Diode
This PIN diode rf switch is the ideal antenna switch for VHF and UHF and work with the PIN diodes which are special high frequency switching diodes with ve.....
Long Range FM Transmitter – Circuit Schematic
Long Range FM Transmitter
This is very stable, harmonic free, long range fm transmitter circuit which can be used for fm frequencies between 88 and 108 MHz. This can cover 5km range.....
10 to 15 MHz AM Transmitter Circuit – Circuit Schematic
10 to 15 MHz AM Transmitter Circuit
This low-cost AM transmitter is tunable from 10 to 15 MHz with the help of ½J gang condenser VC1, which determines the carrier frequency of the amplitude modul...
BLY94 100W RF Power Amplifier – Circuit Schematic
BLY94 100W RF Power Amplifier
100W RF power amplifier circuit built with 2 BLY94 transistors. If you want to see more rf amplifiers check the list bellow. Components Active components:.....
radio transmitter circuit – Circuit Schematic
radio transmitter circuit
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Automatic Gain Control - AGC Circuit – Circuit Schematic
Automatic Gain Control - AGC Circuit
Automatic Gain Control or AGC is a circuit design which maintain the same level of amplification for sound or radio frequency. If the signal is too low the.....