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How to build a black box?

How to build a black box?

 I found this tutorial quite a long time ago and I don't know if it still works. Nevertheless , it might be interresting to read, you might even learn something from it! I would have gladly given credit to it's author but won't since I have no idea who he is. So here is his tutorial that remained unchanged ( I hope!):

A BLACK BOX
is a device that is hooked up to your phone that fixes your phone so that when you get a call, the caller doesn't get charged for the call. This is good for calls up to 1/2 hour, after 1/2 hour the phone Co. gets suspicious, and then you can guess what happens.

What this little beauty does is keep the line voltage from dropping to 10v when you answer your fone. The line is instead kept at 36v and it will make the fone think that it is still ringing while your talking. The reason for the 1/2 hour time limit is that the
phone CO. thinks that something is wrong after 1/2 an hour of ringing.

All parts are available at Radio Shack. Using the least possible parts and arangement, the cost is $0.98 !!!! And that is parts for two of them! Talk about a deal! If you want to splurge then you can get a small PC board, and a switch. There are two
schematics for this box, one is for most normal fones. The second one is
for fones that don't work with the first. It was made for use with a Bell
Trimline touch tone fone.

** Schematic 1 for most fones **
** LED ON: BOX ON **

FROM >--------------------GREEN-> TO
LINE >--! 1.8k LED !---RED--> FONE
!--///--!>--!
! !
------>/<-------
SPST



Parts: 1 1.8k 1/2 watt resistor
1 1.5v LED
1 SPST switch

You may just have two wires which you connect together for the switch.


** Schematic 2 for all fones **
** LED ON: BOX OFF **

FROM >---------------GREEN-> TO
LINE >------- ---RED--> FONE
! LED !
-->/<--!>--
! !
---///---
1.8k
�Parts: 1 2 watt resistor
1 1.5v LED
1 DPST switch


Here is the PC board layout that I recommend using. It is neat and is very easy to hook up.

Schematic #1 Schematic #2

************** ****************
* * * ------- *
* --<LED>--- * * ! ! *
* ! ! * * ! <SWITCH> *
* RESISTOR ! * * ! ! ! *
* ! ! * * ! ! / *
* -------- ! * * ! ! *
* ! ! * * ! <LED>! / *
* --SWITCH-- * * ! ! *
* ! ! * * ! ! / *
L * ! ! * F L * ! ! ! * F
I>RED- -RED>O I>RED- ---RED>O
N>-----GREEN---->N N>-----GREEN------>N
E * h * E E * * E
************** ****************

Once you have hooked up all the parts, you must figure out what set of wires go to the line and which go to the fone. This is because of the fact that LED's must be put in, in a certain direction. Depending on which way you put the LED is what controls what wires are for the line & fone.

How to find out:

Hook up the box in one direction using one set offor line and the other for fone.

*NOTE* For Model I switch should be OFF.
*NOTE* For Model ][ switch should be set to side connecting the led.

Once you have hooked it up, then pick up the fone and see if the LED is on. If it is, the LED will be lit. If is doesn't light then switch the wires and try again. Once you know which are which then label them. *NOTE* - If neither directions worked then your
�lable the switch in its current position as BOX ON.

How to use it:

The purpose of this box is for poeple who call you not to pay so it would make
sence that it can only be used to receive! calls. When the box is *ON* then you may only recieve calls. Your fone will ring like normal and the LED on the box will flash. If you answer the fone now, then the LED will light and the caller will not be charged. Hang up the fone after you are done talking like normal. You will not be able to get a dial-tone or call when the box is on, so turn the box *OFF* for normal calls. I don't recommend that you leave it on all the time, as you don't want it to answer when Ma Bell calls!

Hope it brought something to those who read it.

XIII
numberXIII@Phreaker.net

How to build a black box?

How to build a black box?

 I found this tutorial quite a long time ago and I don't know if it still works. Nevertheless , it might be interresting to read, you might even learn something from it! I would have gladly given credit to it's author but won't since I have no idea who he is. So here is his tutorial that remained unchanged ( I hope!):

A BLACK BOX
is a device that is hooked up to your phone that fixes your phone so that when you get a call, the caller doesn't get charged for the call. This is good for calls up to 1/2 hour, after 1/2 hour the phone Co. gets suspicious, and then you can guess what happens.

What this little beauty does is keep the line voltage from dropping to 10v when you answer your fone. The line is instead kept at 36v and it will make the fone think that it is still ringing while your talking. The reason for the 1/2 hour time limit is that the
phone CO. thinks that something is wrong after 1/2 an hour of ringing.

All parts are available at Radio Shack. Using the least possible parts and arangement, the cost is $0.98 !!!! And that is parts for two of them! Talk about a deal! If you want to splurge then you can get a small PC board, and a switch. There are two
schematics for this box, one is for most normal fones. The second one is
for fones that don't work with the first. It was made for use with a Bell
Trimline touch tone fone.

** Schematic 1 for most fones **
** LED ON: BOX ON **

FROM >--------------------GREEN-> TO
LINE >--! 1.8k LED !---RED--> FONE
!--///--!>--!
! !
------>/<-------
SPST



Parts: 1 1.8k 1/2 watt resistor
1 1.5v LED
1 SPST switch

You may just have two wires which you connect together for the switch.


** Schematic 2 for all fones **
** LED ON: BOX OFF **

FROM >---------------GREEN-> TO
LINE >------- ---RED--> FONE
! LED !
-->/<--!>--
! !
---///---
1.8k
�Parts: 1 2 watt resistor
1 1.5v LED
1 DPST switch


Here is the PC board layout that I recommend using. It is neat and is very easy to hook up.

Schematic #1 Schematic #2

************** ****************
* * * ------- *
* --<LED>--- * * ! ! *
* ! ! * * ! <SWITCH> *
* RESISTOR ! * * ! ! ! *
* ! ! * * ! ! / *
* -------- ! * * ! ! *
* ! ! * * ! <LED>! / *
* --SWITCH-- * * ! ! *
* ! ! * * ! ! / *
L * ! ! * F L * ! ! ! * F
I>RED- -RED>O I>RED- ---RED>O
N>-----GREEN---->N N>-----GREEN------>N
E * h * E E * * E
************** ****************

Once you have hooked up all the parts, you must figure out what set of wires go to the line and which go to the fone. This is because of the fact that LED's must be put in, in a certain direction. Depending on which way you put the LED is what controls what wires are for the line & fone.

How to find out:

Hook up the box in one direction using one set offor line and the other for fone.

*NOTE* For Model I switch should be OFF.
*NOTE* For Model ][ switch should be set to side connecting the led.

Once you have hooked it up, then pick up the fone and see if the LED is on. If it is, the LED will be lit. If is doesn't light then switch the wires and try again. Once you know which are which then label them. *NOTE* - If neither directions worked then your
�lable the switch in its current position as BOX ON.

How to use it:

The purpose of this box is for poeple who call you not to pay so it would make
sence that it can only be used to receive! calls. When the box is *ON* then you may only recieve calls. Your fone will ring like normal and the LED on the box will flash. If you answer the fone now, then the LED will light and the caller will not be charged. Hang up the fone after you are done talking like normal. You will not be able to get a dial-tone or call when the box is on, so turn the box *OFF* for normal calls. I don't recommend that you leave it on all the time, as you don't want it to answer when Ma Bell calls!

Hope it brought something to those who read it.

XIII
numberXIII@Phreaker.net

How To Boot Xp Faster (updated)

First of all, this tweak only apply to those who only have one HDD on their primary IDE channel (nothing else on device 0 or 1) and a CD-ROM and/or DVD-ROM on the secondary IDE channel. Each time you boot Windows XP, there's an updated file called NTOSBOOT-*.pf who appears in your prefetch directory (%SystemRoot%Prefetch) and there's no need to erease any other files as the new prefetch option in XP really improves loading time of installed programs. We only want WindowsXP to boot faster and not decrease its performance. Thanks to Rod Cahoon (for the prefetch automation process...with a minor change of mine) and Zeb for the IDE Channel tweak as those two tricks, coupled together with a little modification, result in an EXTREMELY fast bootup:

1. Open notepad.exe, type "del c:windowsprefetch tosboot-*.* /q" (without the quotes) & save as "ntosboot.bat" in c:
2. From the Start menu, select "Run..." & type "gpedit.msc".
3. Double click "Windows Settings" under "Computer Configuration" and double click again on "Shutdown" in the right window.
4. In the new window, click "add", "Browse", locate your "ntosboot.bat" file & click "Open".
5. Click "OK", "Apply" & "OK" once again to exit.
6. From the Start menu, select "Run..." & type "devmgmt.msc".
7. Double click on "IDE ATA/ATAPI controllers"
8. Right click on "Primary IDE Channel" and select "Properties".
9. Select the "Advanced Settings" tab then on the device 0 or 1 that doesn't have 'device type' greyed out select 'none' instead of 'autodetect' & click "OK".
10. Right click on "Secondary IDE channel", select "Properties" and repeat step 9.
11. Reboot your computer.

WindowsXP should now boot REALLY faster.