The Jammer is a very small circuit and can fit inside a small plastic box with 9V battery inside. It can be very illegal if you attach an external antenna so don't. adjust frequency by turning trimmer. It is intended only as a practical joke device. The Capacitor is 6-10pf air capacitor and the transistor used here is the 2n2222.
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UPDATE: There is an new improved version of this jammer at the following link:
I like this.Is it applicable to loudspeaker jamming?
If anyone ideas about loudspeaker jammer plz help.
could you mail me circuit or idea if u have abt loudspeaker jammer?
Thanx
I couldn't find all the parts I needed so I made some substitutions:
10K + 4.7K instead of a 15K resistor
7pf cap instead of a 6pf
trimmer cap - NO CLUE WHAT VALUE
2n2222 instead of pn2222
However, mine my circuit doesn't seem to be working! I think it's because I have no clue what range my trimmer cap is. Could someone suggest a fixed value capacitor to target a frequency in the FM band?
Thanks!
The pn2222 can be easly found at www.amazing1.com, they also sell the variable capacitor, they use a 6-35pF variable capacitor. They also sell the full kit.
By the way were would you put the white noise circuit?
Nice little gadget, small but does the job. It does work, yes i agree with you George, the antenna position is where you say it works. how about adding a white noise circuit to it, wow even worse, see what happens.
Very impressive. It doesn't do TV quite as well as I hoped but it takes down my FM radio pretty fast... and i believe with my knowledge of electronics that if one was to install an antenna, the best place would be on the same pin of the transistor as the coil.
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Poukhanglung Apr 21, 2020
It's osm Dec 10, 2017
Unknown Jul 18, 2008
Jammin' with Bob Jul 12, 2008
anonymous Jun 13, 2008
apk Jun 12, 2008
schutze May 31, 2008
Dan May 20, 2008
Rich May 3, 2008
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llc Nov 8, 2007