Showing posts with label spy. Show all posts
Showing posts with label spy. Show all posts
Tuesday, August 12, 2014
Telephone Spy unit circuit
This is telephone spy unite.You can transmit signals up to 200feet.This schema operates with 88-94MHz.This schema doesnt want extra power it uses the power of the line.
Note
# If the LED burning out as a problem of your schema, add a 300 ohm 1/4W resistor in series with it
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