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White/Silver box instructions
NOTICE: TO ALL CONCERNED Certain text files and messages contained on this site deal with activities and devices which would be in violation of various Federal, State, and local laws if actually carried out or constructed. The webmasters of this site do not advocate the breaking of any law. Our text files and message bases are for informational purposes only. We recommend that you contact your local law enforcement officials before undertaking any project based upon any information obtained from this or any other web site. We do not guarantee that any of the information contained on this system is correct, workable, or factual. We are not responsible for, nor do we assume any liability for, damages resulting from the use of any information on this site.
/\ PRESENTED
< , , > BY
=()= EXPLORER
CAT 033
=*=*= WHITE BOX / SILVER BOX =*=*=
THESE ARE THE INSTRUCTIONS ON HOW TO BUILD A WHITE BOX/SILVER BOX. MOST OF TH
PARTS REQUIRED CAN BE FOUND AT YOUR NEAREST RADIO SHACK. THE ONLY REAL IMPORTAN
PART REQUIRED NOT SOLD AT RADIO SHACK IS THE KEYPAD. THIS CAN BE PICKED UP AT
ANY ELECTRONIC STORE SUCH AS CARDINAL ELECTRONICS. THESE INSTRUCTIONS ARE FOR A
12 BUTTON KEYPAD. A TOGGLE SWITCH IS ADDED FOR THE SILVER BOX APPLICATION. IF
YOU HAVE A 16 BUTTON KEYPAD THEN THE TOGGLE SWITCH ISN'T NEEDED.
THE TONES MADE BY A TOUCH TONE TELEPHONE ARE NOT SINGLE TONES. THEY ARE A
COMBINATION OF TWO TONES, MAKING "DTMF" (DUAL TONE MULTI-FREQUENCY). THE NORMAL
TELEPHONE DIALS 12 DIFFERENT SIGNALS BUT IS CAPABLE OF DIALING 16 DIFFERENT
SIGNALS.
THE POWER REQUIRED BY A KEYPAD IS ABOUT 25 VOLTS, BUT THEY WILL WORK WITH AS
LITTLE AS 15, THEREBY ALLOWING THE USE OF TWO 9 VOLT BATTERIES. THIS DESIGN
ALLOWS YOU TO USE A STANDARD 8OHM SPEAKER INSTEAD OF A TELEPHONE SPEAKER. TO
ACCOMPOLISH THIS WE USE A MATCHING TRANSFORMER.
HOW TO CONSTRUCT IT:
A FEW CONSTRUCTION NOTES. I SUGGEST THAT YOU SOLDER AND TAPE ALL CONNECTIONS.
[1] CONNECT THE RED WIRE OF THE TRANSFORMER TO EITHER TERMINAL ON THE SPEAKER.
[2] CONNECT THE WHITE WIRE FROM THE TRANSFORMER TO THE OTHER TERMINAL ON THE
SPEAKER.
[3] CONNECT THE RED (POSITIVE) WIRE OF ONE BATTERY CLIP TO THE BLACK WIRE OF
THE OTHER BATTERY CLIP.
[4] CONNECT THE REMAINING RED WIRE ON THE BATTERY CLIP TO PIN #1 ON THE IC.
[5] CONNECT THE CRYSTAL TO PIN #7 AND PIN #8 ON THE IC.
[6] CONNECT THE BLUE WIRE FROM THE TRANSFORMER TO PIN #16 ON THE IC.
[7] CONNECT THE GREEN WIRE FROM THE TRANSFORMER AND THE OTHER BLACK WIRE FROM
THE BATTERY CLIP TO PIN #6.
[8] CONNECT ONE SIDE OF THE SWITCH TO PIN #9. CONNECT THE OTHER SIDE OF THE
SWITCH TO PIN #5 (ONLY FOR 12 BUTTON PADS).
[9] SINCE KEYPADS MAY DIFFER, TRY TO GET A PINOUT OF THE PAD YOU ARE USING. TH
PAD I HAVE HAS 8 PINOUTS. ONE IS A GROUND (THIS GOES TO PIN #6 ON THE IC).
1,4,7,* KEYS CONNECT TO PIN #3. 2,5,8,0 KEYS CONNECT TO PIN #4. 3,6,9,#
KEYS CONNECT TO THE CENTER OF THE SWITCH. 1,2,3 KEYS CONNECT TO PIN #14.
4,5,6 KEYS CONNECT TO PIN #13. 7,8,9 KEYS CONNECT TO PIN #12. *,0,# KEYS
CONNECT TO PIN #11.
[10] CHECK ALL CONNECTIONS TO MAKE SURE NONE ARE TOUCHING EACH OTHER.
[11] CONNECT THE TWO NINE VOLT BATTERIES AND YOUR KEYPAD IS COMPLETE.
NOTE: THE REMAINING PINS ON THE IC ARE NOT USED. THE BLACK WIRE ON THE
TRANSFORMER IS ALSO NOT USED. WHEN NONE OF THE BUTTONS ARE PRESSED, THIS
UNIT USES NO POWER, THEREBY ELIMINATING THE NEED FOR A POWER SWITCH.
PARTS REQUIRED:
1) 5089 DTMF TONE ENCODER (RS 276-1301)
2) AUDIO TRANSFORMER (RS 273-1380)
3) TV COLORBURST CRYSTAL 3.579545 MHZ (RS 272-1310)
4) 9V BATTERY STRAPS X2 (RS 270-325)
5) 9V BATTERY X2 (RS 23-464)
6) WIRE WRAP SOCKET (RS 276-1994)
7) SWITCH DPDT (RS 275-663)
8) KEYPAD (CARDINAL ELECTRONICS)
9) SPEAKER 8OHM (RS 40-245)
10) CIRCUIT BOARD (OPTIONAL)
11) CONNECTING WIRE OR WIRE WRAP
12) BOX (OPTIONAL)
CRYSTAL (3.579545 MHZ)
+-#-+
! +-+ +--------------------------------------------------- +18V --+
! ! ! !
! ! +---------!----------------+--------------------+ ---
+----------------+ ! +--+ -
!. . . . . . . . ! --- !
!8 7 6 5 4 3 2 1 / - !
! ! NOTCH RED WIRE OF !
!9 0 \ \ TRANSFORMER !
!. . . . . . . . ! SPEAKER -> !]============ ! <-GREEN WIRE OF
+----------------+ / WHITE WIRE OF TRANSFORMER
! TRANSFORMER
+----------------------------------------+
! <-BLUE WIRE OF
#3 #4 +----------------------------+ TRANSFORMER
! ! ! !
!
[ ] [ ] [ ] -> #14 #5 <-+ ! +-> #9
! ! !
[ ] [ ] [ ] -> #13 +--+--+
/ SWITCH
[ ] [ ] [ ] -> #12 /
[ ] [ ] [ ] -> #11
KEYPAD
KEY FREQ. #1 FREQ. #2
--- -------- --------
1 697 1209
2 697 1336
3 697 1477
A 697 1633
4 770 1209
5 770 1336
6 770 1477
B 770 1633
7 852 1209
8 852 1336
9 852 1477
C 852 1633
* 941 1209
0 941 1336
# 941 1477
D 941 1633
ALL FREQUENCIES ARE MEASURED IN HERTZ.
-=%>USAGE OF A SILVER BOX<%=-
FIRST OFF, A SILVER BOX ADDS THE FOUR EXTRA TONES TO YOUR PHONE THAT MA BELL
NEVER TOLD YOU ABOUT. THEY GO LIKE THIS:
1 2 3 A
4 5 6 B
7 8 9 C
* 0 # D
THERE USED TO BE MANY PLACES WHERE YOU COULD USE SILVER BOX TONES, BUT NOW YO
CAN ONLY USE IT IN PLACES WHERE MA BELL HASN'T GOTTEN AROUND TO REPLACING HER
OLD SWITCHBOXES, (4A), OR ON AUTOVAN. AUTOVAN IS A SPECIAL MILITARY PHONE LINE,
LIKE A MASS OF PRIVATE LINES HOOKED TOGETHER. TO SEE IF A SPECIFIC AREA HAS THE
OLD 4A SWITCHBOXES TRY THIS TEST:
CALL UP THE DIRECTORY ASSISTANCE BY USING XXX-555-1212, (WHERE XXX IS THE ARE
CODE YOU ARE CHECKING OUT. NOW HOLD DOWN THE "D" KEY AS SOON AS YOU FINISH
DIALING. (IF YOU ARE USING THE TOGGLE SWITCH TYPE THEN FLIP THE SWITCH AND HOLD
DOWN THE "#" KEY.) THE PHONE SHOULD START RINGING AND THE OPERATOR WILL ANSWER.
IF THE OPERATOR SCREAMS AT YOU TO STOP PRESSING YOUR KEYPAD, THEN HANG UP AND
TRY A DIFFERENT AREACODE (THIS ONE DOES NOT WORK.)
IF YOU GET A PULSING TONE THEN YOU GOT A GOOD LINE! NOW TRY OUT DIFFERENT
NUMBERS. 6 AND 7 USUALLY FORM A LOOP LINE AND TWO PEOPLE WITH SILVER BOXES CAN
TALK. SOME OF THESE ARE WATCHED, SO DON'T SAY ANYTHING YOU WOULDN'T WANT YOUR
MOTHER TO HEAR!
ANY KEY TO CONTINUE.
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