TV Jammer Circuit? - Page 2 - Electronic Circuits Projects Diagrams Free

Oznog · 2nd July 2006, 01:52 AM

Why not just get/make an extra remote for the TV or cable box as a joke? That's always good.

HarveyH42 · 2nd July 2006, 04:56 AM

Quote:

Originally Posted by Paul Obrien

http://www.thinkgeek.com/gadgets/electronic/755e/ or try this ready made

Pretty cool, but I guess you could modify a 'Universal Remote', to do the same thing cheaper. And as a bonus, you get to pick which function you wish to mess with, also do VCR and Cable box...

HarveyH42 · 2nd July 2006, 06:38 AM

Okay, found the schematic from high school (1978). It's not too picky about what NPN transistor you use.

Oh, there are a few marks that I made (don't remember why), an 'X' and two lines near the variable capacitor, ignore them.

eric55441 · 2nd July 2006, 06:44 AM

Thanks, I think I will try it out tomarrow.

spuffock · 2nd July 2006, 10:03 AM

When I was a sprog and hadn't had my ears thickened enough, this was the sort of thing I made. The thing was at least tuned. It took 2mA at 9V, and it took the whole damned street out. You could see all the windows light up.
After I was caught, my ears were considerably thicker.
Definetly not worth the trouble.

HarveyH42 · 2nd July 2006, 02:26 PM

Quote:

Originally Posted by spuffock

When I was a sprog and hadn't had my ears thickened enough, this was the sort of thing I made. The thing was at least tuned. It took 2mA at 9V, and it took the whole damned street out. You could see all the windows light up.
After I was caught, my ears were considerably thicker.
Definetly not worth the trouble.

I'm guessing that pranks of your younger years didn't diminish your interest in electronics. So guessing they were well worth it. I guess the Engish people just love to piss on everyone elses parade...

Anyway, this circuit was one of several approved simple project we were allowed to build in shop class, to teach basic electronic skills. Read a schematic, design the PCB artwork, etch a board, drill holes, solder parts, and usually a little troubleshooting. Have a little fun while you learn.

The range is maybe 30-40 feet. Most people these days have cable or satelite TV, so this will have no effect. I've never had cable or satelite, just free broadcast TV, when reception is really bad (storms), I just pop in a movie.

Beginning projects should be simple, fun and interesting. Electronics is a huge field, and still growing fast. Everybody needs to learn some basic skills in the beginning. True, a PIC can do anything, except PIC-your-nose, but you still need to solder, and a little about descreet components.

giaosucan · 2nd July 2006, 02:57 PM

Quote:

Originally Posted by eric55441

Here is a similar design. Does use an antenna in this one. It says that even though the chip is meant to operate on 5v it will work with 9v but get a little hot.

i can not open your file ? What software do you use to open it??
somebody designs schematic using ORCAD??

eric55441 · 2nd July 2006, 06:05 PM

Its a raw ascii file but I added .txt on the end so all you windows people can open it. Use Gedit (Linux), Notepad or Wordpad (Windows).

audioguru · 2nd July 2006, 08:14 PM

What is with this text crap for making a simple schematic???
Sketch the thing!

HarveyH42 · 2nd July 2006, 10:26 PM

Quote:

Originally Posted by audioguru

What is with this text crap for making a simple schematic???
Sketch the thing!

Yeah, was kind of wondering about that. At first I just thought it was a very old file, but the second one kind made me think it was done recently. Haven't seen stuff like that since I was in high school (teletype terminals, no graphics, no CRTs). Although we did get a TRS-80 my junior year...

Why draw in ASCII, when there are hundreds of free drawing programs on the internet. Windows comes with a paint program...

eric55441 · 2nd July 2006, 10:59 PM

it was from an old news group archive

TiagoSilva · 31st August 2009, 10:37 AM

Well, there are manyways to start electric warfare, i could teach you how to cause cancer and kill anyone that lives around you without breaking a sweat, but that would be very wrong, and could also kill you...

So, there are some basic ways to do it.

1- Build a huge coil, like the ones used to do ELF recepcion, and build an strong transistor (for low frequency mosfets are suitable too) driver circuit to make the coil oscilate at your disered frequency. Ex... 50Hz or 60Hz...

2- Make an electric line pulse injector, this would affect your devices and some around your house, just inject pulses of very high voltage on the powerline, but this one can be dangerous. If the devices around you are built without any noise supression you can take them down.

3- To cause interference in the TV, well, any coil oscilating at low frequencies will cause noise on the tv, unless it is an LCD or better...

4- Make a tesla coil and use it !

Remember that, it is always easier to destroy than to build something, having this in mind choose carefully your path.

This can be seen as an test to the electronic interfearence resistance on the devices, but if you have anyone with a pacemaker around dont do this, the pacemakers have some protections, but even so, avoid doing this many times. Also, stopping a pacemaker doesn't mean that you will kill the user but you could cause it to go under cardiac arrest, you could make a lifetime change, starting to wake up watching the sun in stripes (yep, in the jail !!!).

**Nigel Goodwin** · 31st August 2009, 11:18 AM

So why have you suddenly responded to a thread over three years oldd?.

TiagoSilva · 31st August 2009, 11:32 AM

Quote:

Originally Posted by Nigel Goodwin

So why have you suddenly responded to a thread over three years oldd?.

Hi great PIC master :P

Well, mainly because i don't have internet at home... so, that alone can be a pain in the... and because i must remeber to come here and do some reading before i can try to help or annoy someone

but know that i have this forum in great esteem, as a reference and sure place to get help, from the best. And even that i'm not always posting, i'm watching, like watching you rising to your well deserved, actual, rank

I'm not, yet, i am here!

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2nd July 2006, 01:52 AM	#16
Oznog	Why not just get/make an extra remote for the TV or cable box as a joke? That's always good. __________________ I thought what I'd do was I'd pretend I was one of those deaf-mutes.

2nd July 2006, 06:38 AM	#18
HarveyH42	Okay, found the schematic from high school (1978). It's not too picky about what NPN transistor you use. Oh, there are a few marks that I made (don't remember why), an 'X' and two lines near the variable capacitor, ignore them. Attached Thumbnails

2nd July 2006, 06:44 AM	#19
eric55441	Thanks, I think I will try it out tomarrow.

2nd July 2006, 10:03 AM	#20
spuffock	When I was a sprog and hadn't had my ears thickened enough, this was the sort of thing I made. The thing was at least tuned. It took 2mA at 9V, and it took the whole damned street out. You could see all the windows light up. After I was caught, my ears were considerably thicker. Definetly not worth the trouble.

2nd July 2006, 06:05 PM	#23
eric55441	Its a raw ascii file but I added .txt on the end so all you windows people can open it. Use Gedit (Linux), Notepad or Wordpad (Windows).

2nd July 2006, 08:14 PM	#24
audioguru	What is with this text crap for making a simple schematic??? Sketch the thing! __________________ Uncle $crooge

2nd July 2006, 10:59 PM	#26
eric55441	it was from an old news group archive

31st August 2009, 10:37 AM	#27
TiagoSilva	Well, there are manyways to start electric warfare, i could teach you how to cause cancer and kill anyone that lives around you without breaking a sweat, but that would be very wrong, and could also kill you... So, there are some basic ways to do it. 1- Build a huge coil, like the ones used to do ELF recepcion, and build an strong transistor (for low frequency mosfets are suitable too) driver circuit to make the coil oscilate at your disered frequency. Ex... 50Hz or 60Hz... 2- Make an electric line pulse injector, this would affect your devices and some around your house, just inject pulses of very high voltage on the powerline, but this one can be dangerous. If the devices around you are built without any noise supression you can take them down. 3- To cause interference in the TV, well, any coil oscilating at low frequencies will cause noise on the tv, unless it is an LCD or better... 4- Make a tesla coil and use it ! Remember that, it is always easier to destroy than to build something, having this in mind choose carefully your path. This can be seen as an test to the electronic interfearence resistance on the devices, but if you have anyone with a pacemaker around dont do this, the pacemakers have some protections, but even so, avoid doing this many times. Also, stopping a pacemaker doesn't mean that you will kill the user but you could cause it to go under cardiac arrest, you could make a lifetime change, starting to wake up watching the sun in stripes (yep, in the jail !!!). __________________ Best Regards, Tiago Silva. Visit my personal webpage: http://www.tiagosilva.eu/

31st August 2009, 11:18 AM	#28
Nigel Goodwin	So why have you suddenly responded to a thread over three years oldd?. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk