Slashdot Mirror


Pictorial and Written History of Bell Systems

gngulrajani writes "I have wasted an afternoon digging though this website. Lots of old school Bell marketing posters as well as technical specifications for things such as 'Telephone Memory Devices' and a 'dataphone service'."

43 of 151 comments (clear)

  1. Baby bells by BWJones · · Score: 4, Interesting

    Hrmmmm. It was about 1983 that I purchased my first computer, an Apple ][+, and I found out that all of the baby bells which had started up had completely unsecured computer systems holding all those handy long distance access numbers. Of course in 1983, I was a 13 year old and hacking like that was more of a game than anything else. I feel bad about getting those numbers now, but we really had no idea it was "illegal" at the time. That experience though did help introduce me to computer users world wide and BBS's like the Pirates Cove and Crystal Caverns which was pre-Internet, but quite the educational experience.

    --
    Visit Jonesblog and say hello.
    1. Re:Baby bells by BWJones · · Score: 4, Informative

      The novation applecat was the most amazing chunk of hardware you could add to an apple in those days.

      You are not kidding. Those things were fully programable so that one could create a list of numbers to dial (or even dial randomly) and then log the numbers which were answered by computer modems for call back and investigation when you got back from school. I could not afford the Applecat at first and relyed on a cheap modem card and one of those phone handset cradles for a while before I could mow enough lawns around the neighborhood to purchase the Applecat. As I recall, it seems to have pulled about $300 out of my 14year old pockets, but there was a friend of mine (from a decidedly wealthy background) that was doing all sorts of custom programming on his even hooking up an old cassette player to function as an anwering machine which totally blew me away.

      --
      Visit Jonesblog and say hello.
    2. Re:Baby bells by einTier · · Score: 4, Interesting
      Ah, the forgotten Ma Bell. I too remember. I remember using those long distance access lines to dial BBS's all over the country.

      What today's hackers don't realize is how expensive phone service used to be. You either got your phone service from Southwestern Bell, or you didn't get it at all. Your phone? You bought that at the Southwestern Bell store. No, you couldn't just go to Wal-Mart and pick up a $10 phone. Not much choice either, I think there were maybe ten or fifteen available choices. Did I mention how expensive that phone was? Try over $100. For just a regular, standard telephone. Oh, and if you wanted an extra phone (not line!) in your house? That was an extra charge. Just for the working outlet, even IF you didn't plug a phone into it.

      I didn't get the phone bill in those days, so I have no idea what a monthly bill used to look like, but I did know that it was prohibitively expensive to call anywhere long distance. Just to call my father in the next town over cost $0.22 a minute.

      --
      -------------------------------------------------- $665.95 -- retail price of the beast.
    3. Re:Baby bells by BWJones · · Score: 4, Interesting

      What today's hackers don't realize is how expensive phone service used to be.

      Yes. Thus the whole impetus for getting the long distance numbers. The first month after I got my modem, (before I knew about the baby bell codes), my folks went absolutely ballistic at the phone bill saying to me: "You're Grounded!!!" which of course probably proved critical in my discovering the rest of the "wired" world through the phone codes. Man, they were screaming about my calling all over the country, but really had no idea of what I was actually doing with the computer or the implications. My Mom came in once when I was talking via text term to a friend on the other side of town and she was absolutely marveling at the fact that we could "talk" over the computer lines. This is a woman who had a doctorate but had never seen such a thing before. It's hard to appreciate just how novel that was back in 1983 to the vast majority of the population.

      --
      Visit Jonesblog and say hello.
    4. Re:Baby bells by geekoid · · Score: 3, Funny

      hey, I did the same thing. well for a while, then there was the government, Cheyanne mountian, AI, and quite nearly 'Global Thermonuclear War'.
      At least I had a girlfriend.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    5. Re:Baby bells by Anonymous Coward · · Score: 2, Interesting

      I got my first computer in 1977, a Heathkit H-8. It wasn't until 1986 that got my first modem, a 1200 baud radio shack (it had an answer/originate switch). I was with my dad one day, and sardonically laughed as I told him, "Heh heh, I have a modem now!" Fortunately my dad said, "You're 18, you can go to jail." This from a man that had copies of the article from Bell System Technical Pubs (I think that was the name of the journal - it was from 1956 or so) that talked about 2600 hz. Talk about confusing signals - haha.

      Again fortunatly, I had friends that convinced me the local telephone switches were ESSs and had no MF trunks I could blue-box. Maybe this wasn't strictly true but the little lie may have saved me being made an example of in our local court system.

  2. Nice by rackman · · Score: 2, Interesting

    Nice to see the history of this fine organization being documented. Takes a telephone man to appreciate how much goes into a phone call.

  3. Where are the pictures of .. by burgburgburg · · Score: 2, Funny
    the Phone Police, man?

    They're still after me.

  4. The number you have called by bugnuts · · Score: 4, Funny

    Service Temporarily Unavailable
    The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

    This is a recording.

  5. I've seen a few of these before by Melvin+Daniels · · Score: 2, Interesting

    We had a couple in our dorm room. Nowadays, I've got two in my office here at work. Clients are always impressed by them and make comments.

    Never underestimate good office decor.

  6. Re:Site Text by ambisinistral · · Score: 4, Funny
    In this context, not slashdotted... you just got the busy signal.

    --

    deserve's got nothing to do with it...

  7. Telephone company history? by MalaclypseTheYounger · · Score: 5, Funny

    "Here at the Phone Company we handle eighty-four billion calls a year. Serving everyone from presidents and kings to scum of the earth.

    We realize that every so often you can't get an operator, for no apparent reason your phone goes out of order [snatches plug out of switchboard], or perhaps you get charged for a call you didn't make.

    We don't care. Watch this!
    [bangs on a switch panel like a cheap piano]
    just lost Peoria. You see, this phone system consists of a multibillion-dollar matrix of space-age technology that is so sophisticated, even we can't handle it. But that's your problem, isn't it?

    Next time you complain about your phone service, why don't you try using two Dixie cups with a string.
    We don't care.
    We don't have to.
    We're the Phone Company!"

    -- Lily Tomlin from "Saturday Night Live: The First 20 Years" (1994 Cader Company).

    --
    Check out the best P2P sharing website: MEDIACHEST.COM
  8. Of copper pipes and microwaves by G4from128k · · Score: 4, Interesting

    I talked to a Bell executive a few years ago and he had an interesting stories about how the Bells created new technologies.

    At the same time that fiberoptics were invented, Ma Bell had another high-bandwidth long-distance telecom technology in the works. Microwaves travelling in underground copper pipes could carry a modestly high bandwidth signal for long distances. They actually had an entire factory to creating the equipment (pipe, connectors, repeaters, edge boxes, etc.) When fiber came out (with its superior cost structure and tech performance) they simply killed the concept and the factory and adopted fiber.

    --
    Two wrongs don't make a right, but three lefts do.
    1. Re:Of copper pipes and microwaves by Myself · · Score: 4, Interesting

      This sounds like the logical extension of the L-carrier systems. Before digital encoding was invented, radio techniques (frequency division multiplexing) were used to shift the frequency of each voice channel, and pack dozens of channels into a wide-band signal which could ride a twisted pair, or itself be muxed into a still wider signal, which was transmitted on coaxial cable.

      I'm guessing that the megahertz-range signals on the coax were then muxed into gigahertz-range signals to be transmitted down the tubes. Fascinating.

      Lots more details at long-lines.net for the curious.

    2. Re:Of copper pipes and microwaves by freshmkr · · Score: 2, Interesting

      Microwaves travelling in underground copper pipes could carry a modestly high bandwidth signal for long distances.

      You can see some of these pipes at the American History Museum of the Smithsonian, in their communications and computers exhibit on the first floor. They really are like plumbing! The exhibit shows something like a joint between two pipes--both pipes taper gracefully down to the joint from a diameter of about 3cm to 1cm.

      P.S.: I scooped this Slashdot story on Metafilter about a year ago! *gloat*

      --Tom

    3. Re:Of copper pipes and microwaves by Myself · · Score: 2, Interesting

      Into the few-megahertz range, twisted pair wire works remarkably well. This is the stuff we're all familiar with as phone lines and cat-5. The number of twists per unit of length determines how resistant it is to interference, hence cat-5 is much more tightly twisted than cat-3. Each pair in a multipair cable is twisted a slightly different amount, to prevent inductive coupling and crosstalk between pairs.

      The signal sent down a twisted pair is bipolar and "balanced", so that the two wires are carrying mirror opposite signals. There's an excellent explanation of this. T-1 signals ride twisted pair for several kilofeet between repeaters. The N-carrier system (low rate analog multiplex) also used twisted pair, but I don't know how far it would go between terminals.

      Above a few megahertz, twisted pair gets unacceptably lossy and noisy. Higher speed signals are carried on coaxial cable, which we all know and love for its role in television wiring. The characteristic impedance of coax is determined by the ratio of the center conductor diameter and the distance to the inner surface of the outer conductor. Very early coaxial lines were made by suspending thin rods inside sections of copper pipe, by means of cardboard disc insulators. Soon a method of manufacturing flexible cable was developed, and has remained largely unchanged.

      Signals carried on coax are "unbalanced", where the outer conductor is grounded and the inner conductor carries an AC wave. The need for the ground reference means that coax runs between buildings can become part of a ground loop, and cause all sorts of electrical problems. T-3 circuits use coax, but only for very short runs. (A T-3 that leaves a building does so as a DS-3 carried on fiber.) The L-carrier system, which multiplexed several N-carrier signals together, used thick coaxial lines for long-haul runs across the countryside.

      As you approach the gigahertz range, coax also becomes too lossy, and hollow waveguide becomes the obvious choice. Waveguide can be rectangular, ovoid, or circular in cross-section, which effects the polarization of the signals carried in it. The inner dimensions influence loss and frequency range. Personally I'm not familiar with the buried waveguide system, but the TD and TH microwave systems used waveguide to connect the antennae with the terminal equipment.

  9. You could waste even more time... by Chris_Stankowitz · · Score: 4, Informative
    at this site Phone related site.

    Phone Loosers

  10. Judge Green and the MFJ by crumbz · · Score: 3, Insightful

    Not to start a flame war, but I think divestiture was probably a good thing. Does anyone think we would have 1Mb pipes to our homes if we still had Ma Bell?

    1. Re:Judge Green and the MFJ by eggstasy · · Score: 2, Insightful

      Uh, let me think for a while... Yes! Of course. Most obviously.
      I dont know if you're aware that a lot of other countries still have these evil, gigantic phone monopolies. And we do have 1 Mbit internet acess :)

  11. World's Fair Pavilion by Neward+Rylet · · Score: 2, Informative

    I week or two ago I found this
    Video from the Bell System's Pavilion at the Seattle World's Fair in 1962. It's fairly interesting and amusing. It shows such advances as touch-tone dialing, pagers, and autodialing.

    1. Re:World's Fair Pavilion by Neward+Rylet · · Score: 3, Informative

      I week or two ago I found this Video from the Bell System's Pavilion at the Seattle World's Fair in 1962. It's fairly interesting and amusing. It shows such advances as touch-tone dialing, pagers, and autodialing. Bah! I forgot to turn on HTML! Prelinger Archive Video - Film for the World's Fair Bell Systems Pavilion, Century 21 Calling

    2. Re:World's Fair Pavilion by geekoid · · Score: 3, Funny

      you know, replying to your own post twice nearly counts as masterbation. ;)

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  12. Re:There will again be one Bell... by mph · · Score: 4, Funny
    I live in California, which is serviced by SBC.
    It used to be that companies would "serve" their customers. But at some point, they borrowed a new term from the livestock industry, that sounds almost the same but means something completely different.
  13. Thanks a lot! by toupsie · · Score: 3, Funny
    "I have wasted an afternoon digging though this website.

    Well, guess what? You posted the damn address on Slashdot now I can't waste an afternoon digging through that website. Now I have to do my job and update a bunch of Windows 2003 servers because M$ can't get its patches right.

    Next time you feel the need to not waste my afternoon, DON'T!

    --
    Strange women lying in ponds distributing swords is no basis for a system of government.
  14. Re:Site Text by pegr · · Score: 4, Informative

    It's not exactly slashdotted... The index page has been changed, but the "deep links" still work... Desperate for this site? Google-cache the base page here and follow the links to the real site. (Until they decide they don't like that either...)

  15. Oblig Simpsons by da3dAlus · · Score: 3, Funny

    "We're sorry, but your fingers are too fat to dial."
    "If you require a special dialing wand, please mash the keypad with your hand, now."

    --

    Sometimes I doubt your commitment to Sparkle Motion.
  16. Re: Interesting... by SirASCII · · Score: 2, Informative

    Now that is a funny 403 message...

  17. Re:There will again be one Bell... by BdosError · · Score: 3, Funny

    "At some point I expect all these to be one company again"

    One ringy dingy to rule them all
    One ringy dingy to find them
    One ringy dingy to bring them all
    And in the darkness bind them.

    --
    Complexity is Easy. Simplicity is Hard.
  18. Re:phone technology history is facinating by stephenisu · · Score: 2, Insightful

    the thing that gets me though, is considering todays available technology, why is the sound quality of phones still so bad?

    Cost is why.

    Instead of getting more hardware, they started using more compression. From a business standpoint it's a no brainer.

    --
    Sigs? We don't need no stinking sigs!
  19. Re:phone technology history is facinating by BdosError · · Score: 2, Informative
    "why is the sound quality of phones still so bad"

    Mostly because it's Good Enough(tm).

    They give the phones enough bandwidth to carry the important frequencies for speech. If they gave more bandwidth to phones, they would lose total carrying capacity.

    --
    Complexity is Easy. Simplicity is Hard.
  20. Re:Red Stripe beer tastes like bongwater by Thud457 · · Score: 2, Interesting
    That Dataphone (tm) reminds me of "The Desk Set" starring Katharine Hepburn and Spencer Tracy!

    And you are correct about Red Stripe beer. There's a reason for that.

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

  21. Another Telephone system archive by stox · · Score: 2, Informative

    http://mirror.lcs.mit.edu/telecom-archives/which contains a great deal of interesting material collected over the years from the comp.dcom.telecom newsgroup on USENET.

    --
    "To those who are overly cautious, everything is impossible. "
  22. Re:phone technology history is facinating by rishistar · · Score: 4, Informative

    Well the biggest hidden secret fact is that Alexander Graham Bell did not actually invent the telephone. As was finally recognised by the US Congress in 2002, the inventor was a poor Italian immigrant Antonio Meucci.

    Meucci had taken a 'one year renewable intent to patent' out on the invention as he couldn't afford the full patent, and a few years later Bell, who had access to Meucci's materials got hold of the stuff and claimed it as his own.

    from the article:

    He sent a model and technical details to the Western Union telegraph company but failed to win a meeting with executives. When he asked for his materials to be returned, in 1874, he was told they had been lost. Two years later Bell, who shared a laboratory with Meucci, filed a patent for a telephone, became a celebrity and made a lucrative deal with Western Union.

    Meucci sued and was nearing victory - the supreme court agreed to hear the case and fraud charges were initiated against Bell - when the Florentine died in 1889. The legal action died with him.

    --
    Professor Karmadillo Songs of Science
  23. Priceless! by Thud457 · · Score: 2, Funny

    "slashdot : more than six hundred thousand supergeniuses arguing about date arithmetic"

    --

    the preceding comment is my own and in no way reflects the opinion of the Joint Chiefs of Staff

  24. Memories by brain1 · · Score: 4, Interesting

    I particularly remember the Motorola Pulsar and Pulsar II mobile phones. Personally I had one of the General Electric MASTR-II ones with a local common carrier. Also I refurbished quite a few of them for use on privately owned systems as Ma Bell surplused them. They cost about $3500 apiece new, so they were the tools/toys of the rich lawyers, business execs and doctors, and not the local teenager walking around a mall.

    What you take for granted clipped to your belt or in your pocket used to take up a chunk of your car's trunk with thick control cables and a control head mounted on the transmission hump of your car. The things transmitted 25 watts of RF over 152 / 158 MHz full-duplex and could kill a car battery in no time flat. Coverage was spotty over about 12 miles and it had no privacy as anyone with a scanner could listen in. (and you panic about 100 milliwats out of a typical cell phone, heh heh...)

    Now they run for days on a lithium ion battery and you dont fix them - you just throw them away.

    1. Re:Memories by dave3138 · · Score: 2, Interesting

      Out here in rural Minnesota, you can still pick these systems up with a scanner. The base puts out a constant tone which periodically IDs itself in morse. I haven't actually heard any conversations on them though....

  25. slashdotted real good by Wansu · · Score: 3, Funny


    I have wasted an afternoon digging though this website.

    Well, we won't. It has been slashdotted. Bummer. I like old phone stuff.

    --
    Wansu, th' chinese sailor
  26. Anybody knows this kind of phone? by Udo+Schmitz · · Score: 2, Interesting

    On the site I saw thosein this picture. Anyone here has a clue what kind of phone that is and who made it? Those or very similar ones are often seen as decoration in the IKEA catalogue and I always wondered where to get it.

  27. Re:phone technology history is facinating by joshua88 · · Score: 2, Informative

    It sound "telephonic" because the voiceband frequencies are restricted to only 3200 cycles. This frequency bandpass has been in existence since a technology called t-carrier (DS1)evolved in the late 60's. This was needed at the time because the conversion from analog to digital used a frequency rate of 8000 cycles. Nyquists theorem required at least two samples of the analog sine wave to be able reconstruct it at the receiving end. Restricting the bandwidth facilitated this process with the technology they had at the time. Only eight bits represented each possible 256 bit sample. CD quality signals now have 44 bits representing them. Technology marches on but the Telco's still only have 8-bit representing the voice you hear

  28. Here's *my* blast from the past.. by pair-a-noyd · · Score: 2, Interesting

    I personally own a Rolm CBX II 9000 w/PhoneMail system and buttloads of RolmPhones.. Plenty of pix, http://www.systemrecycler.com/rolm

    Yes, it's my personal property..

  29. The good old days by lofter59 · · Score: 4, Interesting

    Boy does that site bring back memories. My best buddy in junior high and I were obsessed with Bell, Western Electric and everything telephonic. Spent many a day chasing after phone trucks to bug the guys, they were our heroes (blushes). Dumpster diving behind the exchange to find great racks of relays and stuff full of mercury and other fun things. Some of our highlights:
    -Made the TV news for building an exchange in my buddies basement from salvaged parts that connected houses on our block (pretty much his doing)
    -Learned how to draw that modern bell logo by heart- put it on everything.
    -My delight at finding a '604b' tool at the base of a phone pole (it was a dual ended nut driver)
    -6 button business phones and 50 conductor cable with funky wide plugs.
    -We could tell whether an exchange used regular relays or rotary step-switches by the sound on the line.
    -Many odd admin type phone numbers that did fun things- can't remember what all now.

    Yes, we were obsessed.

  30. The real history of the transistor by Baldrson · · Score: 2, Informative
    The Bell Labs version of the history of the transistor differs significantly from John Bardeen's version as heard by Sherwin Gooch:

    Sherwin Gooch's Account of John Bardeen's Lecture (Score:1)
    by Baldrson (jabowery@netcom.com) on Tuesday December 28, @08:58AM EST
    (User Info) http://www.geocities.com/jim_bowery

    In any case, I'll check with Sherwin Gooch to see if he has any more direct evidence from Bardeen himself to support the controversial account of the hide-away experimental stand.

    I did, and here is Sherwin's response:

    Jim,

    Thank you for alerting me to your discussion.

    To provide a more solid foundation, one should be aware that I heard this story from the horse's mouth.

    John Bardeen himself gave a talk one evening at Altgeld Hall on the University of Illinois campus, circa 1978, in which he related various experiences surrounding his inventing the transistor. At the time, people suspected that the scheduling of this presentation may have been related to Bardeen's health.

    Professor Bardeen showed us the B&W 16mm film BB&S had made at Bell Labs immediately after they got the first transistor to work (and, presumably, before Bardeen's boss got to work the next morning...) I have seen individual frames and out-takes of this film since, but I don't know if the entire film still exists. The "rolly-cart" with their experimental set-up is plainly in evidence on the film.

    It was John Bardeen himself, at Altgeld Hall, who related that his boss had said that the "solid-state amplifying device" which they wanted to develop was "not feasible," and that, "even if it were possible, it would have no practical application." Dr. Bardeen related that sometimes, when his boss stayed at work past 5 p.m., the three of them would become very impatient waiting for him to leave so they could roll their setup out of the coat-closet, and get busy on what they, apparently, thought was the greatest "cool hack" of the day.

    I wonder who Bardeen's boss was. His boss should be immortalized in history next to the NASA manager who advised the last engineer withholding approval of the Challenger launch to "put on your management hat!"

    One of the anecdotes John Bardeen related was how he had left his set of photographic slides in the taxi which took him to the ceremony to collect his Nobel prize, and all the trouble to which he and the Swedish government had gone in trying to recover them. But their efforts were unsuccessful; the slides were never recovered. Professor Bardeen was extremely apologetic that he didn't have them to use in his presentation, and so we would just have to make-do with his relating the incidents to us.

    With my background in computer music, I found one of the pieces of supporting paraphernalia that Dr. Bardeen didn't lose in Sweden quite interesting. He brought along a transparent plexiglas box, approximately the shape of a 6" cube, with randomly distributed 3/4" or so holes (apparently for cooling?) in the sides. On the top were a number (6 or so) of black SPST N.O. push buttons. A small loudspeaker was mounted inside. (There must have also been a battery of some kind, but I don't recall it.) The box contained a collection of electronic components, their leads soldered to one-another ("tacked together"), and hanging in "free space." (He hadn't bothered to use a prototyping board or connecting strip.) There were resistors, capacitors, possibly some coils, and these ~1" long bar things (which were the transistors), of which there were 3. Dr. Bardeen explained that he had had chosen to build this device because it em

  31. Re:Of copper pipes and microwaves-A watery Wave. by Cylix · · Score: 2, Interesting

    wave guide is very generally very clean and occassionally throughout has some pvc cross hatches. Wave guide for bends and flexibility is a slightly different construction.

    If you have any obstruction or not properly bending the radio waves you will get reflection back the tube. (VSWR) This is bad and too high of a reflection will cause your equipment to shut down.

    --
    "You should always go to other people's funerals; otherwise, they won't come to yours." -- Yogi Berra