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| Acmlm's Board - I2 Archive - Hardware/Software - Playing tones on the go. |
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windwaker Ball and Chain Trooper WHY ALL THE MAYONNAISE HATE Level: 61  Posts: 1468/1797 EXP: 1860597 For next: 15999 Since: 03-15-04 Since last post: 4 days Last activity: 6 days |
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| So basically I want to build something that will allow me to play a tone (like a phone tone) through a speaker. I'd do this with capacitors, right? The tones are composed of two frequencies being played at the same time, and the frequencies won't exceed 2700hz. Is there any practical way of doing this, even if I have to configure the capacitors or whatever each time? | |||
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||bass Programmer Admin Level: 44  Posts: 349/817 EXP: 570813 For next: 40472 Since: 03-15-04 From: Salem, Connecticut Since last post: 26 days Last activity: 11 days |
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| First off, if you're planning on trying what I think, don't bother. It doesn't work on any phone made since something like 1990. If you are going to try what I think you're going to, go here: http://www.phonelosers.org/redboxtonedial.html If you aren't going to try what I think you're going to, go to that site anyway, and just do the algebra necissary and pick a different crystal frequincy then this guide tells you. |
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windwaker Ball and Chain Trooper WHY ALL THE MAYONNAISE HATE Level: 61 Posts: 1470/1797 EXP: 1860597 For next: 15999 Since: 03-15-04 Since last post: 4 days Last activity: 6 days |
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Yes, I know that red/blue/etc boxing has been dead for a while. I wasn't planning on doing this. You see, beige boxing is still alive ( ), and I tried using my PC speakers as a tone dialer; worked like a charm.I'd also been to that site before, thought what I really want to do is find out how things like tone dialers are creating the two frequencies. (edited by windwaker on 04-30-05 12:02 PM) |
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||bass Programmer Admin Level: 44 Posts: 350/817 EXP: 570813 For next: 40472 Since: 03-15-04 From: Salem, Connecticut Since last post: 26 days Last activity: 11 days |
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| I THINK it's just a matter of passing an AC current of a specific amplitude & frequincy to a speaker. | |||
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 4315/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| That's the idea. Give a speaker a 2000hz AC current, and it makes a 2000hz tone. Also, the red ones still work on those old solid black phones. The new digital ones just block the sound.  |
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windwaker Ball and Chain Trooper WHY ALL THE MAYONNAISE HATE Level: 61 Posts: 1473/1797 EXP: 1860597 For next: 15999 Since: 03-15-04 Since last post: 4 days Last activity: 6 days |
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| Red boxing has little to do with phones anymore, it used to deal with operators and such. Basically, I have a speaker from a phone, with two wires leading into it. I need to find out how to generate the AC current. |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 4321/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| Well I'm not sure exactly how but I know you use a transformer. Same kind they use to convert AC to DC in those huge power adaptors game consoles use that take up 2 or 3 outlets, but connected the other way, AFAIK. (Though you probably wouldn't use one that was actually from such an adaptor, given the voltage differences.) And what exactly do you mean it has little to do with phones? I can't think of much else use for it, especially use that involves a phone... What I meant in my last post was that those 'new' phones actually have filters that block those frequencies (and possibly shut down, I'm not sure), along with other such security systems in place. You can still indeed use them with older phones (the vulnerability is in the central system, not the phone) but other types don't work anymore, because their vulnerabilities don't exist in the system most modern countries use. |
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windwaker Ball and Chain Trooper WHY ALL THE MAYONNAISE HATE Level: 61 Posts: 1475/1797 EXP: 1860597 For next: 15999 Since: 03-15-04 Since last post: 4 days Last activity: 6 days |
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| Well, first and foremost, I find it somewhat hard to believe that a phone could block out certain frequencies like 2600hz, and it isn't possible that it would be able to block out the frequencies it picks up when you put a quarter in. However, the vulnerabilitly is in the central office (more specifically, fooling operators), therefore it wouldn't matter if it blocks out certain tones. | |||
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 4332/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| That's basically what I said, and yes, it is possible. Plus there is other security in place. | |||
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windwaker Ball and Chain Trooper WHY ALL THE MAYONNAISE HATE Level: 61 Posts: 1503/1797 EXP: 1860597 For next: 15999 Since: 03-15-04 Since last post: 4 days Last activity: 6 days |
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| Okay, well I've done a bit of reading on electricity (to find more than I knew from creating arcade boards ). Resistors restrict the flow of electricity to limit how much electricity is passed to, say, an LED. If too much is passed, the LED could like, not be functional, I'm assuming, or the battery could get used up. I guess. I've been trying to mess around with soldering stuff. Rock. Oh, and I have another question. o_x How do I change the OHM of a resistor without actually getting a different resistor? Are there resistors that can limit a range of electricity? (edited by windwaker on 05-06-05 01:19 PM) |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 4356/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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Too much electricity will fry a LED (and sometimes the power supply  ), or even a resistor. Unfortunately you can't block a range of current, only reduce all current by a given amount. Nor can you change a resistor's resistance, unless it's a variable resisitor (usually used for volume controls and the like). |
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windwaker Ball and Chain Trooper WHY ALL THE MAYONNAISE HATE Level: 61 Posts: 1506/1797 EXP: 1860597 For next: 15999 Since: 03-15-04 Since last post: 4 days Last activity: 6 days |
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| Variable resistor, I see, I see (thanks, I didn't know that term and had no way of finding it, it seemed like). The only problem I'm really facing at this moment is what to do with the frequency once I've generated it. I send it to a speaker, but what type of speaker?  I've searched the RadioShack site for speakers, but I seem to only be able to find stereo speakers, and have no idea what keyword would bring up something for this (hey, they have a lot of products, okay?  ).(edited by windwaker on 05-07-05 04:28 AM) |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 4369/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| Any old speaker should work, as long as it's the right size. Too big and you won't hear anything, too small and it'll blow. |
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