FM transmitter circuit, but this circuit is generally used for music in a slightly different circuit parallel to the line connecting the phone conversation set can listen to the FM band. FM transmitter circuit does not require additional power required for operation of the energy received from the telephone line
List of materials used in the circuit, and information of turns, PCBs have drawings.
Source: j.mp/9cXG5x Telephone Transmitter FM Circuit Alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-10921.zip
Published: 2010/08/03 Tags: analog circuits projects
Stereo 64LEDs VU Meter Circuit Atmega8
Generally VU Meter for the indicators used integrated 2 × 15 LEDs or 10 LEDs supports this circuit atmel microcontroller using more LEDs used VU-meter circuit ATmega8 microcontroller based on the two-channel stereo per channel 32 LEDs are dropping a total of 64 LEDs PCB drawings hex and c code There.