TAP No. 68 - Secret Service Counterfeit Currency Report

Secret Service nets phony money record oe isa batget Ls shows tbat oe ot ut a ist ‘ree jorce caring, nent Hearings show Specal agents ‘author ‘The’ countertelt $20 to, ic appear apres TH ies in Bogota were response for Ur ‘Bogota. Colum! ‘appropriations report, reveal that the arrest of 38 defeodants and the seizure of amount of boges currency seized daring $20 million in counterfeit US. fiscal 1979 rose by 137 per cent over the Also recovered in the same raid were TAP oe Gert Service report showsthst_ sams dod (0 mila peor laCerBia 603, $507 million in. mar cure) a ‘bonds. rw Shoes Treavered per ce eee w York Inton The arpa of poy ee) on. prgghlith tll of, tbe US. currency JUL-AUG 1981 NO.68 Mediocre ASMA SE ear tap wera on vale ita te it ton tlorera usar Previously. in late 1978. 1 eame across your publication by readi the Fifth Estate in le . T a ion by rea of fscal 1900, counterfeiting 8e- Of"Uime, According 10 Secret ct Dewoit. | bought ahout half of your Taek ste and found very interesting. | would like to ‘current rates and z in Bl and | have sevural questions aboui them, Fi i, how < J cr such ts 8 S67 was $37 allen (representing $0 per cen) Teady aceped al over be Work — glaced'on tne rete vine ms given the caller could send a beep Despite aggressive investigation by ben tS accepted, no one really takes down the line and trigger the $67 which could turn ight or buzzer tw notify the receiver of a he time to examine the notes that are one ists t these : Secret Sette takes long distance black box call. (F only ask these questions for educational purposes). fico Durag 1978, 23 clon fo ake CrCnanEee of une lake US. in regards to 2600 and blick fox detectors. it would sccm to me that (Ms cuuipment would be inacey wah passed on tbe ple. TS seis in Clebia wee 29D too expensive to place on everyone's line and that only random checks are made. It would seem represents [3 percent increaseover the Sere printed by te offset Text that Ma would have to get a warrant te fust into one’s place and then find the equipment. How ‘Wmillioncl the; year. Sevotinallo ato makes dp roughly 79 could they prove that the voice on the fine isthe suspect in question? (Even capture of the device According 19 the Secret Service, of Pereent of the cousterfehcarremey ro. would only add to circumstantial evidence), the $4.5 milion worth of countertelj curs BSCS Tn nis country. [believe in issue 36 or 33 there is a reproduction of an ad for a 260K) hz & black box detector. It rency | om the American public Last ‘Cousterfeiters are abou states that the device catches black boxes by dete the presence of an AC signal in the absence vided Of a certain amount of DC current. It also states that the tbe pluced in series or parallel. ; If the detector is wired in series it states that it ean detect 2600 hz bypassing and black boxi simultaneously. In parallel it can wnly detect 2600 hz wnes, In order to detect the black box. it most be placed in series. This must be nccessiry to meusure current flaw while picking up the audio. Consequently. the device may have a significant de resistance, For instance the device may use a ion. In uny ense it may have a fairly substantial de y alter your voltage or current flaw. ‘The ad nlso states that the detector is triggered by the presence of AC in the absence of a certain level of DC, why not let just enough DC current to flow: but an amount of DC insufficient trigger the telco relay — perhaps 14-16 milliamps? If the relay doesn’t trigger billing By placing the current as closes possible one might be able to bypass the detector. IF the gn AC stops, you will know thot the retuy has triggered. ; . Ir has Been my experience thatthe de resstinee ofthe line (he batteries internal resistance, source of fate US. money because of that For edlectors intrested in Ging T9Y. FEsStanoe & line isl ts uswally around 1500 v0 2000 ohms. Consequently if the device has ‘8 resistance of 200 ohms phones resistance was 200 ohms and the telco de tatleo’s cic pacia's pied ee ee ee Tee impedence 2s 1500 ohms then the device would alier the vllage from 8-2 to 4.7 a change of ti —_ — approximat he we sampled my tcl unc voltages: a ‘seem to remain fais = mie, Shia D acuiae free oc on tine wi one disconnected with a precision resistor of 4 i m™ constant. One method is to sample the line with the factare of phy. mney lo Colombia, which i praabe (ee of charge Re Sod ohms This excledes any ac from the carton mike, The only ae varance wif some from the - to: “The Office of Public Affairs, United dial tone which should be minimal. The only other vuriation would be that of the line resistance compete etaas pennant SlatesSeeretserice 18"G°St, Wasi which may change slightly with the weather, sympathetic to tis countrys problems — inglon, D.C. 20728. ‘Another method of testing might be to sead a low power RF signal down the line. The relay being un inductor should provide consderabis ac impedence, Any capacity coupling may crete an tc short st very high frequencies — this would reduce impedcnce at high frequencies, An LC Phone machine malfunction rite wit resonate at speatte requency. Ifthe series hook-up uses an audo transformer this wailinerease the inductance of the ine und once aguin change impedence mt varigu frequencies, . . Consequently; 2 random sampling of u specirum of frequencies may be taken and recorded. Any Somsauenty random samen of spe cited as cause of blaze rare Ae pte pls Ho eden wt co LI 2 Mw commerce * as reraned mdz AC inp ac ih inene s meteg ornL 12. Mas come sctine was clied ty ine cause et "He said te cmall bse camed some AC impedence most Tultimeters have different inpot impedcaces for DC voltage, resistanes and fire whieh damaged a Koster Boulevard smoke damage to AG voltage tests. Next connect the signa generator ueross 1, L2 making sure io use a blocking aparinect ecient’ ‘zpacitor. Be sure to disconnect all telephones so the ringers don’t interfere with your readings. Prowualy Fire Cuief H. Rey Vliet sald ‘You shoutd also take readings at random intervals in the 1K to 100Khz. Then try RF frequencies going 25 high 2s you can with the'generaice trom ets aed tke an oc fen librate the AC voltage to a uniform value {gay -5 vols) each time, Then connect the to the line nd note how the changes. ‘The volige wil vary depending upon the AC impedence of the tleo equipment at each specie ‘When changing frequencies disconnect the blaze, Which broke out shortly after # ‘am. apparently began when an suto- matic telephone answering machice tone on ffequency. Next keep a fecord of what you have done. Now you can retest your line from time to —_ dime and note variations. tall ope wake macie wasting 1 am in the process of experimenting with this method right now and am keeping records of cach test. I am also monitoring my voltage and currents weekly with precision digital equipment. If nyone che out there is Interested perhaps we ean compive results and deve sorte new testi methods. If you have an AC current meter you might test the amount of current pasting at exc LETTERS FROM READERS Sresoupled please Sond i in and we con gure outa wey to dice es presence On the Ine * ‘Te: Insti For any Paper Trippers out there who are trying to keep a clean ani woking 2 "Blue Bort They 6 . Corputer. It haa music capabilities built in. It plays’ ta tino whose frequency can be svecified i t Hz and whose duration can te specified ry ond » ‘his could lead to your undoing should you ever went to submerge for a— When f called TI to ask a few questions atout its while with your alias intact. capabilities, the gentlemen I talked to readily admitted i ani- the coxput '# vossibilities. In fact, he used the ‘The above tidbit also holds true for everyday people who are trying to tors "Blue Sox® firat. He eaid they orfginally planned xy be sure that you give practically the same to ention its auto dialing capabilities (touch-tone is done it for us. They sre 1 it a TT 99/4 Home s ‘stability'). of course, and not MP) but decided not to efter being Any variations such as different social security numbers or birthdates contacted by, guess who, Ma Bell. will be emphasized in your file, and probably will be a red flag to any There are 2 disadvantages 1, It comts $1100.00, credit grantors who may wonder about the discrepancies. 2, It ip bulky. But it reane you can have a lega} "Blue Hox sitting right in your home and Wa Bell can't do Of your ow credit file for enything about it. Besides it can also play foot! and any number of other interesting thing Hey! Maybe There Is Hi their file. How? That's your problem. Be creative. A federal investiga loved lst week tat» $100 milion computer at top- laboratory in Albuquerque, N.M., was improperly used secret weno ig byibelai's employes to stte sch extrevocatbeal dia ; Hoping that we all Live life with the least amount of hassles. That's [Ln anifeed pestis qmion orien een Sai ea ea ly EEN BOX £ THE BROWN BOX BY Ted Vail & Mick Haflinger It seems like there are so many colored boxes ground today, so here is a short summary of the Knoun. type: the user the power of a long distance BLUE - Gives, the y Jon operator, for free. Very powerful. RED - Initates tha "coin deposited” tones at a pay phone, thus reducing toll charges to 5¢73 Bin. Practically useless for local calls. PURPLE - Combines functions of RED € BLUE in 4 unit. BLACK - causes Bell equipnent to think call wos never answored, while allowing conversation. Seo “nute" below. BEIGE - anything that can imitate a Teletypc. WHITE - Equivalent to a Toush-Tone pad (12 keys) GRAY - A Touch-Tone pad with 16 keys ox 1633 he. SF BROWN - Combines aos many others as possible, at Teast PURPLE & GRAY. YELLOW - A simple 2600 hz. generator. Sec “mute” “MUTE" = Any recoiving end device that makes con: versation possible while making Boll think the called party nover answered. Black box is the best-known oute, but others exist. And now, due to the combined efforts of Ted Vail and Nick Haflinger, ue hava the GREEN BOX! Rs ue ali know, the RED box is cafe, easy . and very eigectives But you Know, paying that b¢ yeally leaves & sour taste in ny mouth. If you Zeal the same way thic now box is the answer. You ean now got your S¢ back! T£ both calling and galled parties are equipped with RED/GREEK Boxes then the calier pays a nickel and RED Boxes, the xest--thon the called party uses the GREEN box to return the callers nickel. ABSOLUTELY FREE! It is Assumed that clandestine ¢alls ore less than the 3 Minute limit. If not you better think about it. This box is used at the cecciving ond to return the callers coins, The caller must be at o pay station, It could be a lot of gun and gave moncy Bround the dorm. It can also collect coins and gingback the cailing party. early article by Nick, finally published in rap e58, Attempted to oxplain coin return but the MP signal alone is not enough. the difficult part is preparing the receiver for the inceming MF. Reeording to Boll, this is donc by sending an operate: released” (OR) signal to the zeceiver. TEES GEgDST AEE sauahschorertng BP So sean ma}+ given 60me before the MF signal uh aust be at least 900ms. ~— "wave form helou-- zen Pause 7700+ 1198 However, since this has not been proven. uc cannog rulé out the possibility that'we really need “operator attached" signal instead. This’ i simply. on~hook winks seperated by 100-150ms. -- wave form below-- ne Forde fiery signal using only winks: That would call gor a inks. That. w sinks azter the “operator Yeleascd” signal. 20 ee eS Wel Leef 1oe Maybe winks are more important th: : thoy Bre Just short Surges of 2600 tie that cre” Gonverted to DC in the ECM unit at the C.O. They Bagicy Refex ‘to Gap see For other uses: (zen Ce magic, Regex ox other uses. (Zor CG 70 Well, there axe the specs, complete with waveforns. Wo ao designing ours now, similar to TAP #36. Plans will be sent in but if you get one working. pease get. an touch with us through TAP. “the BROUN BOX is the most powerful box Known ~ since it has the capability of generating ALL control £ signaling tonas. This crystal-controlled tone gener- ator is hyper-stable, with respect to both Voltage and temperature changes. The deoquencies are accurate to OcSt or better. It's alse easily connected to ao co: bit word variety). A 1.0 MHs crys t. as glocks tuo RGA 40103 doun countess, which divide tha | Mis The sols °and agsociated eizouttry take the sauace” iated cizcustry take thes ware ueereuts oF the 40103! mixing the two ‘anan- a close opproximation of a si wav the’tnfa7pased aapitfiers Zi ai1 you wang is a °° Bluc Box, either build one of the others that have azed in TAP, or connect this one to your Keyboard anS"pushbuttonss bat S¢°s°toue sk! us juttons, bu 's™ wa ak you want is a Blue Box. § Noverkili" if utexr aUT, bacauge you can re-tune this box to a new ggt of tones Just by changing the input word(s), it turns your microcomputer into a BROWN BOK (HeigesPurple/Gray simuitareougiy). Also if you WbetarEs tage aeseyeeampeeee gee eBiosteeg anes essary to Kea! +3 rom {ntorgoring with egeh other), and a Keyboard decoder chip to intargaca tha keyboard to. the PROM, you could go grom one got of tones to another (like TouchTone HITE Box to BLUE Sox to Bilitary(USAP) local to Aray long distance to .- by/uging thevextra addvess bits of the PRO. Throwing in a XR2240 oz giniiar counterstimer (ig there a CHOS equivalent?) would give RED € GREEN bilities. fed haan't giguzed out ali tho of this added circuitry yet but he 8°2758 IK X 8 EPRONS (Prog. arrays are z possibility) and the 74¢932 keyboard lacoder. The EPROMS ore about 6.00 FRK each — @ Federal Re~ serve Note, not dollare=-Just See Pig. 1 for the basic tone generator cireui For cach of the 40103's, the Suegue iroauescy aa” given by Freq =_1000090/¢8#(xs1)) uheze Nie. the }0 value of the 8=bit word applied to the NO10a's input. AlL of the 8-bit words and the resulting freqs are listed in Table | A Gode of 10110001 (177) yields an output frequency of 1000000/(8* 178), or 702.28719 Ks, which is close enough to 700 Hx. For a given freq, the code can Zound by solving for Ny 4 N®( 10000007 (822req)) the change from one set of tones to another is mple. Let's say your keyboard decoder converts eke phoard: input’ into a binary ue, such, that Te Gktput is 0110 when Rey 6 as. ressed. The 0 fed to the address input, of the PROM's tell to look in location #6. and to o ut jax 8-bit word is there. In Blue Box mode, (low Exe group) outputs 01110001 to the c2fendted "A Ghite PROM B outputs 010111 g°nB". The result is a HF output of. 1100H: jz. But let's soy that PROM A contains Tin location 22 (1646) and PROM B hag, Qin logation 22--this is 770H= and 1477H=. dress lines ore low unless spocizies wise. The keyboard encoder controls the +2,4%, and 8 address lines, and hand-thrown witches control the other: Mow you, the phreak, ‘aise the 16 address line high. Upon pushing the 6 x 3 SS oage ao os + Sa*sSue! ‘tten on the keyboard, you will ge’ he TouchTone Sutput the words found in location . You've ad 16 to the address generated by fhe Keyboard; end ac long aa the 16:agdrass Line z° yor 1 have a whole new set of addresses, uhic! if you do your programming right, will uhicn a tthe words’ for he TouchTone freqs. T# the keyboard encoder assigns 10 (ten) to the @ ‘3 Keypads you might wont to put | for 125000 Hz, which is essentially null as the rest of the circuit won't pass into one of the Breas and 01001100 into the other, dt address 26 (18+10), so you'll get a pure 1633, SF out, So. with the 16 line pigh you have a GRAY. box. O£ course, with o prom that's 1K lonk, you'll have address lines (in addition to the 1,2,4, and 8 lines controlled by the keyboard encoder) for 16, 32,64,128,256, and 512, allowing 64 different oars ef tones. If that is not enoug! they make me roms. Ke Now that you have hyper-MF Brown Box ca! ability you night af well ging s thing to do Sith it. Ue Understand that the military Autovon system shares long distance trunks wit! jell Long Lines. Wo were Sussing this (ticks axticle on this has not en published yet) at WATS, 80, 9nd opeculated Bogut’ the method Bell uses to discern Autoyon gzom the regular traffic. We think the Army TA~341/PT ibies (TAP €603 ora used inside military bo: There is a great nocd for input in this area: pisase contact the authors af you have Tngormation. “ You might try getting a copy of the Autovon phone book, Zt*s available from the Government - zinting office bookstore. Also Arm: Technical anuals TM 11-5805-480-15-" and -481-15-% and 2-15-% supposedly deal with Autovon, as may Gao Teport 09763. Autedin ig covered by PAN750-16 and AR105-26 which may be obtained from Adjutant Genezal Conter/ HeDA( DAAG-PAD-z)/Wachington, DC 20314, Send o note first to make suxe t! 4 will zoad it begore sending your ponay (ox FRKY. US Patent 4,001,513 describes a Blue Box detector. Doasn't look too easily defcatable, but if wont stop a Green Box. Always u: a coin phone ough! Seane they’ aluayg have the called 4, so Keep 2 things tn’mind: tell your friends that a Gonputer, printout of numbers is not evidence. as they coula program the computer to print out anything, ond i1# you want someone to bo harassed, galivhis with a Box anonymousiy and lot the detector go to work. ag the pro: WOFKEHO OnteevEtoran a For prope: Red Boxing, you need_o xeloy simulator like the one shown ii g 2. I don't finou for gure whether this works of not, but I euggecs that it does. When the "deposit" switch (3308s pressed, the scm conducts and iets, the ‘co "See" 10k across the line, the real trick is to automatically remove the i0k when 9 collect or Zeturn signal comes in. I (Ted) think the lin voltage goes to sero briefly just before the h: voltage collect/return Signal cemes down the linc If so, the current flow through the SCR will stop turning the SCR off. If the SCR won't turn off, fey putting a savoit soner ocrose the bridge, so when the high voltage of the pulse comes, the gener will conduct. shorting out the SCR thus . turning it of%. The problem with ony coin relay is thot it hos to be hard-wired to the line, as you can't acoustically couple DC. As long os youre fards wiring; of course, you might aa well connect the MF output of the Box. Daring TaPpars, may want to wire up a jack to their nearby coin phone linc, bo thoy can have easy access. The problem with this is that one now has a “favorite” target hones but one can cither tap the line at a romote [Pocation between the phone and the CO; or wire Up jocka te lots of phones before beginning one Boxing spree. Best place for a tap is one that you gon observe most of the time, so you can tell when they're out looking for it. Observation could be done similar to burglar alarms, and much safer! Two things mus’ kept_in mind: dont stay on too long, and al: jell WILL have the receiving party's number, so when they detect the shortage agter at most 2 months) they may have some questio You might want to use the box only, te itect calls to coin phones,whose last 4 get up digits should not be O0xx,9xxx,or Sxxx. It seens thaxe are only 3 offective, airtight ways to make free calls! credit cords; elugs/foreign coins: and gcans like third party billing and collect cails to coin phones. 2 ge 53 BY xad 2 pf be Gack 5 P¥a NS oS25 oF OG as Son oy +o “eueo a “oonnas OD shoGem esanace BSE p00 Sangznaneed Gun Wo wognovn oe we CT eae aie be Ort Ba Won cHoeo gad BHEOE eos a: Sas SHae ede” Shue 2 P Bdogadow. dag 0 nRBLOGOEES EO aoe Sao Saneaae a ABS Zdoeg “ugSoamos Wom Gomerocgs wonso Sos “he geumoe ny ae” .coun Ss oo OM Bode. Su UU Fozsousa- oO toa S)E wk0ouG NEDacON VEG EO Meowau cos me aa Gog eddadsn so gig G cumseosoNeaos Bcu Ucenovugnag 22 ao a°3 oe Be ew shes no oe EOOrv pooovoodMs Lad SS ex Ungd ae Oo B ORsEa es a SP ag QEQUS taNadOM aE ae) ydod atocuesug stooud (aan Gone Ebdcasveaen - asaen So POL ga tin Boag. Ge Shem enscuguae wi EW deo Gade Sasa Vevornt aqueous mex Re) Guuecg. mig a» SFuvygna GocHEAGO. a A Skae OUbT maoMcrE eG con 3 Zao ong gh stg gEOND OS ug ed 3ouaS2o aH amane oan Adon” Gagutengu ae BROUGH ABO DN das Bo udd ENG Gowngozsucegsa GGN BaWnoesaagrsas FREQ wORD PREQ TABLE 1 WORD me in your y $50 and Zor nou services, “The Doctor® ou that 958 (the Me would appreciate often used as ye Also tr: tact Ted. Ppens. reserved ‘and 970 are let me toll Txy them from a coin pho what ha us Stn Pa ee bod 5's 'tl ty wanda Loren F soy Sagegtasgas ‘pO Jo anja g4 aseq St N 1 40 MUA Lavatg & apo> f-(Aeea afsaen (147) 8401 3 doug 1000 10) ‘= ancae “ba Spoon yadad soy T2iquy 07 22994 mute Vals 297 ant ho" - please con are usually ontact Nick. NI @) and 959 ap.2 parting shot, z Nye: any and all fcedback test numbers. area and teli 976, ~ plea: nonenenanannnrnenovennmenan organs nengre cums nett ssn Jeol anova sway RASA ARAANAD ABARRARARRE SEE SE nereaunsmarenonnnsnsngeonwagmen ae Qnrime Wen OO RAN ag hat Oe oan, an rararerantetenetse renter aeseen nn ORRR ARRAN ANANASNAANANRRNNRRA ANNE SEMA ER TT, save at bard mone fanw) sey ps0 ab ssfpe ancinn Seueeereeenoeens HTH ng wenseonnne renga: seenan aeaten, ses es ore ott ra PSR SS casa Sasa meee SANNA RNR AAAS TAOS SORES SEES AANA RSET AZ THE FRONT LINES ~ Nick Haflinger EMER the uorla°os high woz ‘Ste of azeas that TAP has up a gous Maybe ize thet ue can J.C. Welman.Jz.,who is the head of the ine-rationing recently quoted as saying that lidating a natural vehicle iy EEERZ TEE allocation inion vehicle ouners and millions ‘of coupons that would be ha cyrrency og rationing could overwela tha D.P. AMERICAN BANKERS ASSOCIATION ga fask, force, ua capabilities of rationing a: .» What this ariel that any gag rationing plan wee HiIT Reve "nuge Loopholes for clever raopie. ACK B, OWNE! HANDBOOK- FALSE FACE £o: King bogus ration books. out the National Law good ideas on What is known al nt Teleco: ‘System (NXLETS)?. in Ph current] aging its Data General Nova 840 with ppP 70's. I know that this will he used with NCIC, haps to free thes from the public phone 11 (ATET and Western Electric) s to be $f push in, the wor hi u'ESS syst me guitching antage. All you goo out how we can use xumors are that Bell can n a three minute conversation in memory, if so then this could used for aut tic recording of -calls that had Blue/Black Box detected. ITT hag a new service for fax machine users. lL allow any tuo fax egardiess of sp Zing out who ha: 2 Zax machines by fox. This opens up ne phone itt you contact + RY,MY 10008. 212-558-4200. OF staid could just walk doun the out. the t'and £in the hi in th exe vill be a new 990 exchange in, the near ete. Detas ut, future. It will be used in Echandisin that ti stem. A merchandiser 12 £4 set up the nun! ep it UP ESE obably saves eeping normal want to charge Prof. John tt Ontario is uriting about automa e_and It t ngth of tine og dollars by ree but tha assholes Oe per call. Carroll of the Univ. long lines the CALLER MISEELLANEQUS INFORMATION BY THE MAGICIAN....... The Bel} book "Notes On Distance Dialing” is extremely useful to the "Telecommunications Hobbiest" it contains reams of information on a wide variety of topics ranging from international telephone routing techniques to WATS to CCIS etc. The last edition was priced at $12.50, but I Believe a new edition is now out, and most likely costs more (Doesn't.everything ?). For more information on obtaing a copy, send a SASE to TAP. A note of caution to those of you hacking on SPC SPRINT and MCI. It is believed that Bell has set up all MCI and SPRINT local dialups as “Trap Numbers”, This means that whenever you call the dialups, a trouble card is dropped (IE. a record is printed containing the CALLING number and time) at the Bell central office. These “cards" are usually ignored unless MCI or SPRINT detects a fraud (IE. Unauthorized use of @ customers access code) then they can call Bell and almost immediatly find out the calling phone number and nail the person. Thus dialing MCI or SPRINT from a PAY PHONE would seem to be the only safe way. (By the way, The above mentioned "trap numbers" is also how Bell goes after harrasing phone callers, to private residences.) Also remember MCI and SPRINT always have a record of the CALLED number. Thus if a customer complains that he is being billed for calls that he did not make, MCI and SPRINT will contact the number’ called and try to find out who called them at the time in question. So only institutional switchboards, Business's with no record of your call and people with very "short memorys” are "safe"to call through MCI and SPRINT. PLEASE NOTE: We DO NOT encourage you to rip off MCI or SPRINT as they are in business attempting to provide an alternative lower cost long distance telephone service and are most certainly a step in the richt direction! Mad at IRAN ? Well call up the militants at The United States embassy and tell them what you think, After 9:00 AM Iran time call: Country Code: 098 ge ni a Sounter-culture, group inoL-A. that City code 21 (Tehran) eos 0: : Ahaticen firme doing business in Latin Agerice US Embassy: 825001 and of hit lists of jewelry and val les and the Gouputerized rigging of odds on horse racing. Any comments, questions etc. send to: About that source code ue Neard the Russians tried 7° Magician C/o TAP yr JS 4 tenbtenent pysten (DBAS) Sold Sy ADABAS; ADAMAS Used ay s 2 the“fneldent for a gull—page ad’ in COMPOTERUORED. hap ata ets Hit ath ree, pring ences as, St rd like the Inpigration Service (INS) is a Feconmarytoceagerate”— il Rogers enough Go something = » Senator dson Pre! about it,” — Mark Twain. oe eo test raids on its’ pager and com ~ un Fecords": "they had also failed to test Dear TAP, OTHE | pack rssues are §.50 each. Issue # 50 is $1. Subscriptions - 10 issues - US Bulk Rate $5. | 85 First Class in plain sealed envelope $7. Canada & Mexico First Class $7. Foreign Surface $8. - Foreign Air Mail $10. IMPORTANT! Please include your mailing label or a Xerox copy whenever you write to TAP about your ] subscription. Electronics Courses - $.50 each. A - DC‘ Basic: cs, D - Amplifiers. $1.50, ry" Pen - $.50. Cassette = $3.50. Hear Capt Crunch, Al Bell, Joe Engressia, and Bell Security Chief John Doherty. | | Sena CASH, check, or money order to: TAP, Room 603, 147 West 42nd Street, New York (ake fom mest erent, mow ort, | a | This is just a note to let you know how much I enjoyed WATS-80. I would like THE DOCTOR to get in touch with me through the TAP office. The info on SPRINT has been useful, will it be Published? I've done a lot of scanning recently and it to add to SOLOs article that xxx-0000 indi a band 1 prefix. Also if the jane re- cording greets you at 20-0050, try xxx-0060 to verify the band 6 prefix you found. Is anyone out there interested in swapping scanned numbers? TASERS are getting big here. Rumour has it that TAP will be publishing plans soon, wall?? Upcoming projects from the think tank include a new box that allows the caller to put money in the phone and get it back. It is possible to use this from the calléed end with some changes. Look for plans in the winter TAP. Sept,80 Popular Electronics turned me on to the ICL7660 voltage polarity converter chip. It should simplify pipers box by eliminating one of the bulky batteries. It also crossed my mind that a 4046 cmos Pll could be used to detect 2000 hz, which is used by the man to trace calls. It Could be set up for automatic shutoff, even on black box calls. Nick Haflinger