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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
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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