Building a super spy bug transmitter
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Uploaded by dazaro3 on May 21, 2009
http://www.bug-transmitter.com
Many thanks to talkingelectronics.In this video we are showing you how to make a very small home made FM transmitter Bug using a single transistor and with a transmission range of 200 meters.
This FM transmitter Bug is very easy to build.
The size of the circuit board is ONLY 22mm x 10mm.
I design the circuit board layout using
Pain shop pro X2 ,it takes me 4 hours to get
the design right ,i want a very small PCB.
To make the PCB i will be using the toner transfer
method and Ferric Chloride.
Parts used:
Home made PCB
2n3904 transistor
4.7p ceramic capacitor
1n ceramic capacitor
22n axial ceramic capacitor
1 - 5p to 30p air trimmer
360R resistor
4.7K resistor
10mm Mic
35cm antenna
Battery Plug
Some solder
19mm heatshrink
Total cost just 90p.
Link to this comment:
Uploader Comments (dazaro3)
Top Comments
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what should i use to listen to this ?? should i use a separate receiver or a just a normal radio ???
:D
2 months ago 3
All Comments (388)
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can you help me find this "1 - 5p to 30p air trimmer" i have looked everywhere and can not find it... possibly a link to it or a replacement.
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please tell me the coil's henry and frequency of the transmitter.
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plz tell me the coil's henri and the feqvance of the trasmittar.
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Complete schedule on my website: silaseletronica.webnode.com.br
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I only have condenser electret mic's layign around, which require a mini driver circuit to run them.If I add the driver circuit to this, do you think it will work?
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Bravo! Very well done, video and project.
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not being funny or anything, but i dont really want a 35cm antenna wire coming off a bug if its meant to be discreet.
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@jorkey0roblox 3V is the minimum voltage. the 2n3904 transistor can run on max 40v
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What is the use of this?
thanks!
marc1979Guitare 2 months ago
@marc1979Guitare
The small mic will pick up sounds and send them
over the Air to any FM radio ,you can hear a pin drop
from 30 feet away! used for Wildlife, Surveillance
and more .
dazaro3 2 months ago
the diagram says 3v but you use 9v... this is not accurate. can you show me the real schematics?
jorkey0roblox 6 months ago
@jorkey0roblox
It does not show in this video using 9v.
Its a 9v battery clip
2 x 1.5v cells in a battery holder with PP3-type terminals
dazaro3 6 months ago 3