Quote:
Originally Posted by fmnotes
3. Yes transmitter can be very useful. I posted TX schematic in another topic.
THEY IS THE MANUFACTURE WITH THE TBA820M?
(UM66T19L) THEY IS BETTER?
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Transmitter is based on NE555. You need very weak transmitter.
http://www.longrangelocators.com/for...lf+transmitter
Which UM66 you use is of personal preference, in electronic mean all are the same.