bh1417 usb fm transmitter circuit

This compact FM transmitter has a range of approximately 50 meters and is designed for connection to a USB port. By utilizing multiple mini-transmitters, a comprehensive and engaging radio program can be created. The power supply through the USB port...

medium power fm transmitter circuit

This is a design circuit diagram of a moderate power FM transmitter circuit. The circuit operates using two transistors. It consists of a complete circuit diagram. The operation of this circuit is explained as follows: the voice signals picked up...

Stereo balance indicator

This is one of the simplest stereo balance indicator circuits available. The circuit provides a visual indication using two LEDs, which represent the difference in balance between the left and right channels of a stereo system. It is based on...

FM Transmitter

This FM transmitter is one of the simplest and most basic designs that can be built while still providing a useful transmitting range. Despite its small component count and 3V operating voltage, it is surprisingly powerful, capable of transmitting over...

Stereo Headphone Amplifier

Both halves of the circuit are identical. Both inputs have a dc path to ground via the input 47k control which should be a dual log type potentiometer. The balance control is a single 47k linear potentiometer, which at center...

USB Printer Share Switch

This device allows two computers to share a single USB printer or other USB devices, such as an external flash drive, memory card reader, or scanner. A rotary switch is used to select the PC that will use the USB...

The Itsy-Bitsy USB Lamp circuit

The device is referred to as the Itsy Bitsy USB Lamp. This concept is remarkably straightforward, raising the question of why it had not been conceived earlier. Originating as a student project at Massey University in Wellington, New Zealand, it...

5W Chinese PLL FM Transmitter With LCD Printed Circuit Board (PCB)

Here's PLL FM transmitter circuit from china. This circuit uses the familiar 2SC1971 for final power amplifier stage. The PLL controller of the FM transmitter use SAA1057 and PIC16F628 (download HEX file). More: If want to change the active component,...

USB08 HC908JB8 USB Reference Design

The primary target audience of the USB08 Reference Design consists of developers focused on microcontroller firmware and hardware, as well as those dealing with Windows driver and application software issues. USB (Universal Serial Bus) serves as a standardized bus interface...