what could be wrong with this circuit?

AlbertHall said:

But I thought you had got this circuit working, as below.





To understand the receiver, start with understanding the phase lock loop. It's a bit of a mind bender the first time you come across it.
http://www.radio-electronics.com/in...l-synthesizers/phase-locked-loop-tutorial.php

Click to expand...

thanks for the reply.
i didn't mean the general concept of the circuit.i meant what each component does in the circuit when fed with a 9volts supply on the transmitter and on the receiver side with a 5volts supply respectively.

Thanks for the reply

bertus said:

Hello,

The NE567 and SE567 are similar.
The SE567 can be used over a larger temperature range.
See the datasheet for more info.

Bertus

Click to expand...

Yea.i got the Led blink on the transmitter
..luckily...i got the LM567 just few minutes ago,i will complete the circuit today

AlbertHall said:

But I thought you had got this circuit working, as below.





To understand the receiver, start with understanding the phase lock loop. It's a bit of a mind bender the first time you come across it.
http://www.radio-electronics.com/in...l-synthesizers/phase-locked-loop-tutorial.php

Click to expand...