Pll Fm Radio Transmitter Circuit Schematic
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TV transmitter circuit using only 2 transistors operates from 12V
A simple two-transistor TV transmitter circuit that operates from 12V. It is compatible with PAL B and PAL G systems.
The described circuit utilizes two transistors to create a basic television transmission system capable of operating on a 12V power supply....
50MHz crystal bug
This bugg is based on my previous 3-transistor transmitter. This bugg unit has many advantages. The transmitter uses a crystal 46.515MHz to hold a steady frequency. The frequency can be fine-tuned by some 100kHz. The transmitter can send data and...
RF Inductance Meter
This RF inductance meter measures RF chokes in the 500 nH to 50 µH range. A simple solution was required to measure hand-wound RF inductors in a secondary lab setting. The user intended to utilize this device occasionally and did...
RF Dummy load
The load described here is capable of handling up to 10 watts of RF power for a couple of minutes and is designed for the widely used 50 ohms impedance. It consists of ten parallel connected 560 ohms 1 watt...
remote control circuit
The remote control circuit comprises two main components: a transmitter and a receiver. The transmitter circuit is controlled by an NE555 integrated circuit (IC), while the receiver operates based on the frequency of the signal emitted by the transmitter. It...
Cyclotron II
The white feedthroughs are for connecting the RF high voltage to the D's (not shown). The copper pipe perpendicular to the main pipe serves as the vacuum line. The D's are equipped with screw posts on the side for connecting...
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schematic of programmer radio
This time, information will be shared about the schematics of radios, specifically the schematic of a programmer radio, along with the latest information available on Onmilwiki.
The schematic of a programmer radio typically includes various components essential for its operation, such...
Interfacing MaxTrac Mobile Radios to Repeater Controllers
This article outlines a reliable, straightforward, and universal method for interfacing Motorola mobile radios from the MaxTrac, Radius, and GM300 series with common repeater controllers. The information provided is also relevant for radio interfaces used in IRLP or EchoLink applications....
RF Inductance adaptor for multimeter
The circuit's operating principle is that if you make a pulse width proportional to inductance, and keep the pulse frequency and amplitude constant, and then pass the pulse through a low pass filter so that only the average voltage comes...