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a miniature uhf video transmitter – Circuit Schematic
a miniature uhf video transmitter
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vhf ampand transmiter schematic – Circuit Schematic
vhf ampand transmiter schematic
Another version of the 1W VHF amplifier for the FM transceiver, well, in fact, it`s still the same version since I didn`t managed to get 1W. YET! Today I made s...
2meter 144mhz amateur radio transceiver – Circuit Schematic
2meter 144mhz amateur radio transceiver
A 2m ham radio transceiver that includes all the necessary circuitry, in particular the voltage-controlled oscillator ( VCO ) + phase-locked loop ( PLL ) for fr...
tv power amplifier schematic – Circuit Schematic
tv power amplifier schematic
TV RF Power Amplifier 14W This RF power amplifier works in frequency 470 - 860 MHz UHF Band IV and V with power out 14 Watts with input power 1. 5 Watts. The po...
stereo pll fm transmitter based bh1417 – Circuit Schematic
stereo pll fm transmitter based bh1417
The circuit diagram of stereo PLL FM transmitter based BH1417 chip. This is certainly the most recent BH1417 FM Transmitter design diagram from RHOM that consis...
fm transmitter circuit with max2606 – Circuit Schematic
fm transmitter circuit with max2606
FM transmitter circuit which is build using single chip of MAX2606. A very simple FM transmitter connects your home-entertainment system to a portable radio tha...
an active whip receiving antenna – Circuit Schematic
an active whip receiving antenna
In my quest to find small antennas that work well I decided to try to build an active whip, a small vertical antenna connected to a preamplifier. The role of th...
vhf video transmitter circuit – Circuit Schematic
vhf video transmitter circuit
This is a simple design circuit for transmitter video. This circuit can radiate as far as 50m. This video transmitter can be used with the camera as a source. Y...
fm antenna booster circuit diagram – Circuit Schematic
fm antenna booster circuit diagram
Input coil L1 consists of four turns of 20SWG enamelled copper wire (slightly space wound) over 5mm diameter former. It is tapped at the first turn from ground ...
ham radio circuit audio filter – Circuit Schematic
ham radio circuit audio filter
Here`s a design circuit that has function that it will help to filter out the interference signal and ensure that the signal received from the Morse code statio...
pll fm demodulator – Circuit Schematic
pll fm demodulator
This is a circuit about PLL system that can be used to implement an FM demodulator. Since the VCO output tracks the FM signal, and the VCO input voltage is prop...
fm antenna booster circuit – Circuit Schematic
fm antenna booster circuit
This is a low cost fm antenna booster that can be used to listen to program from distant FM stations clearly. The antenna fm booster circuit comprises a common-...
build your own imouse fm transmitter – Circuit Schematic
build your own imouse fm transmitter
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High Performance Regen Receiver – Circuit Schematic
High Performance Regen Receiver
A new high-performance regenerative receiver is available as a kit. Using a new regenerative detector circuit allows a good performance regarding sensitivity.....
tv transmitter and pal video modulation – Circuit Schematic
tv transmitter and pal video modulation
The following is a series of simple TV transmitter using negative using sound modulation and PAL video modulation. This is suitable for countries using TV syste...
3v fm transmitters circuit diagram – Circuit Schematic
3v fm transmitters circuit diagram
Place the transmitter about 10 feet from a FM radio. Set the radio to somewhere about 89 - 90 MHz. Walk back tothe FM transmitter and turn it on. Spread the win...
simple booster tv schematic diagram – Circuit Schematic
simple booster tv schematic diagram
This is circuit that can be used to strengthen the RF signals from a television antenna work at UHF frequencies in the range 450-800MHz. It has a gain of around...
booster radio fm schematic circuit – Circuit Schematic
booster radio fm schematic circuit
Here is a simple circuit of an FM booster that can be used to listen to programmes from distant FM stations clearly. This amplifier will pull in all distant FM ...
4 watt 900mhz rf amplifier – Circuit Schematic
4 watt 900mhz rf amplifier
This RF amplifier circuit has a power output of 4 Watts at a frequency of 900 Mhz. Applying Wilkinson power dividers in the base and collector circuits of Q2 an...
fm radio ic tda7000 schematic – Circuit Schematic
fm radio ic tda7000 schematic
FM radio receiver circuit is an FM receiver made by IC TDA7000. The circuit uses IC TDA7000 FM receiver can be supplied with a DC voltage of 2 volts DC to 12 vo...