mstechca
New Member
Take a look at these transmitters. I have built each one of them and the results are shown in the attachment. The middle one seems to work the best if the RESET pin of the 7555 is tied high.
BUT, I want to make a transmitter that can transmit a tone, just by making something positive or negative. And it looks simple with the 555, but it is more complex.
What I want to do is take the output from a 555 timer, and drive it into a transmitter, and produce a long range transmission. I hope to have over 60 feet.
My other design I published on here works fine, but it is not compatible with my receiver. In other words, if I used the exact same capacitors for tuning in both the transmitter and receiver, the published design will not work with them.
Please help.
and I'm not joking here!
BUT, I want to make a transmitter that can transmit a tone, just by making something positive or negative. And it looks simple with the 555, but it is more complex.
What I want to do is take the output from a 555 timer, and drive it into a transmitter, and produce a long range transmission. I hope to have over 60 feet.
My other design I published on here works fine, but it is not compatible with my receiver. In other words, if I used the exact same capacitors for tuning in both the transmitter and receiver, the published design will not work with them.
Please help.
and I'm not joking here!