am radio circuit diagram
No description available.
Four channel RF remote control
This is a simple RF transmitter circuit utilizing the Holtek HT-12E encoder chip and an AM 418MHz transmitter module (WZ-X01). The use of hybrid RF transmit/receive modules simplifies the construction of the RF remote control. The transmitter can operate with...
Free-Power AM Radio
Here is something that may interest crystal radio builders: a one-transistor (silicon) AM broadcast receiver that derives its power from ambient AC hum and static. The schematic is adapted from Darryl Boyd's "Stay Tuned" website, which features over 170 articles...
Active AM Radio Antenna Amplifier / Preamplifier Circuit
The antenna amplifier circuit comprises approximately 40 components, featuring two NPN transistors (BC548), one MOSFET (BF981), two varicap diodes (KV1235), and a 6.2V zener diode. It includes a 330µH inductor/coil, which can be modified for operation on different frequency bands....
3 W Stereo amplifier using MAX 7910-Audio power amplifier circuit
An audio power amplifier circuit for a 3-watt stereo amplifier using the MAX 7910 IC is explained below.
The audio power amplifier circuit utilizing the MAX 7910 IC is designed to deliver a maximum output power of 3 watts per channel...
Wireless Coupler
Here's a way to get a short range bidirectional RF (Radio Frequency) channel on a microcontroller, using the controller's tristatable I/O pins and on-chip comparator with a few passive components. The range with the firmware and simple I came up...
schematic of lenovo e317
Analog baseband digital circuit table of contents: EMI interface, BPI bus, JTAG, LCD interface, keypad, UART, MINT, GPIO, MCP keypad, audio, RF, I/O connector, power cones, serial time, battery charging and analog, LED driver, RF control, JTAG, IOTA, audio codecs,...
General-Purpose Output Amplifier Circuit
This general-purpose amplifier has a bandwidth of approximately 20 MHz and it uses an LM733/NE592 video amplifier integrated circuit. This circuit can be utilized as a line driver or as a LAN line driver.
The circuit employs the LM733/NE592 video amplifier...
Radio Field Indicator Circuit
An RF field indicator is needed to verify power stages and transmitter antennas. This radio field indicator allows for the measurement of radiated energy from antennas.
An RF field indicator is a crucial device in the field of telecommunications and broadcasting....
loop antennas
A loop antenna is a radio antenna made up of a loop (or loops) of wire, tubing, or other electrical conductor with its ends connected to a balanced transmission line. This design includes two distinct types of antennas: the small...