How to Make a Spy Microphone Hidden in an Old VHS Tape or DVD Box
- Old VHS tape or dvd box
- Stereo amplifier listener or sound amplifier (this can be purchased at any radioshack or online at amazon, also any old voice recorder you have laying around will work)
- Wireless FM transmitter
- AA Battery holder ( specifically double-holder)
- Small screwdrivers
- Soldering gun and lead
- Heat shrink tubing
- Portable Dremel tool
- Hot glue gun with sticks
How to Assemble Spy Microphone Using a Sound Amplifier and FM Transmitter:
- Remove the boards from the amplified listener and the FM transmitter. (1)
- Take apart the two cases and remove the screws.
- Take out all the components of the amplified listener and the FM transmitter to save some space. In this project, only the parts are helpful; you may discard the housing.
- The amplified listener has two microphones.
- Extend the wires on those microphones by unsoldering the wires on the circuit board and from each microphone.Extend the wires about 6 inches for both microphones.
- To make a power line, tap at least 6 inches of wires to both the amplified listener and FM transmitter to connect the wire going to the battery holder.
- To avoid electrical short circuits, use a lighter and heated shrink tubing to prevent electrical contact between two wirings. There you go, a DIY spy listening device that you can use.
How Does it Work?
- The sound amplifier and two microphones will pick up the sound that the FM transmitter will receive.
- Then the FM transmitter transmits the sound over a specified frequency.
How to Integrate the Spy Microphone Inside the VHS Tape Case:
- Disassemble the VHS tape by first taking out all the screws. Set the screws aside for later use.
- Take out all the inner components to make room for the new parts.
- To entirely remove the inner parts, use the Dremel tool to cut out all of the interior plastics, leaving just the screw holes for reassembling. (2)
- Put the new components (2 mics, sound amplifier, FM transmitter) inside the roomy VHS case.
- Drill 2 small holes that fit the microphone's size at the end of the case, one for the first microphone and one for the other microphone near the recording tab.
- Use a glue gun to fasten everything in place.
- Use the two actual holes on the bottom of the VHS tape to have easy access to both power switches for the sound amplifier and FM transmitter.
- After gluing all the components in place, put the cover back using screws and put it on the VHS sleeve.
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