Mostrando postagens com marcador transmitter. Mostrar todas as postagens
Mostrando postagens com marcador transmitter. Mostrar todas as postagens

quarta-feira, 4 de março de 2015

Simple AM ​​Transmitter using Integrated Circuit


any beginners give up playing withRF due to the difficulty of building coils and problems with self oscillations that are common in many electronic circuits, radio frequency. I always point out to beginning the construction of a small FM transmitter, I myself have made available a simple and explanatory tutorial circuit Article Micro FM Transmitter Spy and Micro FM Transmitter Spy Bug in SMD.
The RF is actually a very critical area, but otherwise, she is the most rewarding, especially when we see one of our creations give the air of grace and dropping their airborne waves. I always say that we learn more from mistakes and making mistakes is part of the electronic, myself today bursting capacitors and transistors see loose wisps of smoke, the difference is that I have fun today with these errors.

http://blog.novaeletronica.com.br/en/simples-transmissor-de-usando-circuito-integrado/

quarta-feira, 30 de outubro de 2013

AM transmitter circuit using 555

Circuito Transmissor de AM usando 555


Strange as it seems, this circuit can transmit rf Amplitude modulated (AM) in approximately 600 Khz frequency for that he uses an integrated circuit as 555 oscillator. The audio enters the PIN number 5 of the integrated circuit 555 coming from an electret microphone, an integrated circuit converts the frequency modulated signal to a modulated amplitude and output is on pin 3, where an antenna can be placed directly on it or a coaxial cable.