AVT2723 B

The system allows replacing headphones with a long cable with a modern radio connection. Kit is dedicated primarily to TV lovers in a situation when the sound coming from behind the 'glass screen' disturbs other household members in well-deserved rest. A system of a hand-made stereo transmitter (connected to a sound source) was adopted. As a receiver, use any miniature FM radio (eg AVT2330 ). The implementation of the transmitter is not complicated, and its unquestionable advantage is the presence of only one, simple to make a coil. The system was prepared based on the specialized and popular integrated circuit BA1404. As a result, no measuring instruments are needed in the tuning process.
The transmitter is useful when transferring music from a computer, as well as in many other applications.

The device is especially recommended for lovers of night television, music lovers, radio communication enthusiasts and electronics-experimenters

Selected transmitter parameters:

• FM system (CCIR, reception on any radio receiver)
• two channels (stereo)
• transmitter power - about 20 mW
• possibility of supplementing with an additional amplifier
• low power consumption
• power supply - 12 V
• in the set a printed circuit board, a set of elements and documentation
  
  Detailed description in
  EdW 5/04