WEIRD SOUND MAKING TYPING TELEPHONE THINGY - minicom 5000

A piece of #retro #eighties #tech for the hard of hearing.
f you want to see builders livestreams and loads of other stuff plus support vids and the museum here:-
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curiousmarc
/ @curiousmarc
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Always looking for old gear! to mod or conserve in the "museum of everything else" one day
www.lookmumnoc...

[@LOOKMUMNOCOMPUTER]

name something with a keyboard on it

[@huntabadday2663]

Commodore 64

[@HainjeDAF]

Keyboard

[@Shiba643]

trs-80 model 100

[@spark-e]

Piano

[@tobitechboy1461]

Lg compact telephone thingy

[@customfreak81]

we actually had one of these for a while back in the 90's, my sister had a deaf friend at uni and brought a minicom back one summer so they could talk during the holidays

[@beachsandinspector]

Yes I had a number of these (similar) machines to repair many years ago, also had some deaf friends who I would communicate with using these devices.

[@retrobro_]

That's so cool

[@platypushatstand]

“Going down these rabbit holes” - this is what makes your channel unique - as it leads to more fabulousness - so please don’t stop 👍🏻👏🏻❤️

[@screwbles5697]

This is honestly one of only two or three channels that I have seriously considered becoming a patreon of. So much unexpected, fascinating content.

[@idj20]

Aaaah, speaking as someone who is born deaf, that takes me back. The minicom (which was given to me free by the health services) was revolutionary in terms of using the phone to keep in touch with other people in pre-internet times. I recall it used the TTY signal for sending data from one minicom to another and the "telephony" software on Windows 98 and a 56k modem just happened to be compatible with minicoms. It was handy but it wasn't that long before SMS texting took over as the standard means of keeping in touch with my deaf chums. What I do remember with using a minicom was that it was considered "good manners" to type SKSKSK to properly close the conversation, in fact I know a couple of deaf friends who still do that in Facebook messaging out of habit!

[@joe-e-geo]

What does sksk stand for??

[@unsoundmethodology]

@@joe-e-geo The Morse code pro-sign SK (S and K without the pause) is the code for "end of transmission", considered an abbreviation for "Silent Key". I'd assume that's where the Baudot use came from. (Not coincidentally, "Silent Key" is radio ham slang for someone whose telegraph key had gone permanently silent, i.e., someone who's passed away.)

[@chriskohanek]

@@unsoundmethodology I learned this as Stop Keying, but I always thought of this as 'Popeye the Sailor Man' or . . . _ . _

[@chriskohanek]

Telephone Devices for the Deaf (TDD) were everywhere at my university RIT in Rochester NY where ~1 in 10 students are deaf. The deaf user could watch the signal light to see the ringing sound, which then changes to a flicker when someone speaks. They would tap the space bar once or twice to announce they are using the TDD and the hearing person should connect to the TDD. In addition to the convention that you type 'SKSK' at the end of a conversation, you let someone know it is their turn to type by typing 'GA' at the end of your sentence for 'Go Ahead'. This only works if one person types at a time.

[@idj20]

That's the one with the GA! I've been trying to remember the other "keyword" with using a minicom, it was like our own version of saying "over".

[@BeTheAeroplane]

"What are you doing, honey?" "Nothing important. I'm just paying long distance fees to call up the UK and listen to 1000 oscillators scream!"

[@rarbiart]

Money well spent!

[@suddenshotty]

Gotta use these free international calls on something decent

[@oPossum5150]

The light bulb that was missing is used to indicate when the telephone line is ringing.

[@toadelevator]

He'll definitely need to get that bulb then! I KNEW there was some simple explanation I was missing : )

[@aminorjourney]

My late sister was profoundly deaf. I remember using these to talk to her when I was at music college in the late 90s in London. Mum and dad had a teletype 5000 at home, and my sister made sure everyone had one. But I was in halls at GSMD so didn’t have one at first, In my first year of college, before I had my own place (and before I purchased a Nokia communicator with all my pennies to call my sister on text that way) I used to have to walk down to Liverpool St Station in London to use the two pay phones that had one attached. They were really unreliable and hidden inside a stainless steel case with terrible keyboard. Man they sucked! You used to type your message and then “GA” to let the other person know it was their turn. To sign off both parties typed “sksk” after their final message to let each other know it was time to hang up. The teletype service is still operational afaik and many hard of hearing people still use them (although most people now just use text messaging). If you were really posh you had one with a text answering machine that would answer the phone for you and take a message! Love what you’re doing here. So glad I’m a Patreon :)

[@_00FF00]

TTY is still a thing in the States but has been largely replaced by SMS/text messaging. 911 call centers still regularly do TTY drills.

[@joe-e-geo]

Would GA = go ahead?? What the heck would sksk stand for?

[@_00FF00]

@@joe-e-geo If I remember right, it was an old morse code shorthand basically saying "end of contact."

[@aminorjourney]

@@joe-e-geo GA does mean “Go Ahead” and SKSK means “Stop Keying”

[@2.7petabytes]

Sam, I REALLY appreciate all that you do! You should most definitely be proud of all you have achieved! I would love to visit the museum sometime!

[@spazmobot]

And the important message rang out across the desk.... "I'd love a pint." Always cool, that stuff you do...

[@MattBoyceDrawing]

We still have one of these my parents are Deaf, you could use it to talk to each other or you call a relay service (type talk) to make a voice call on behalf of the Minicom user. At the end of a sentence you'd write GA (go ahead) to let the other person know it's there turn to write.

[@portcherish]

you beat me here ! I remember they would use GA and PLS HLD a lot, I would call the TTY interpreters when I was away from home so I could talk to my parents.

[@huntabadday2663]

Now you gotta get a couple 60s mainframe systems

[@blaisebaileyfinnegan]

It's Look Mum NO Computer. That said, an analog or hybrid computer would be cool.

[@LumaControl]

@@blaisebaileyfinnegan Facom 128 replica? :)

[@huntabadday2663]

@@LumaControl Yeah, that will also give Sam A chance to collect the later telephone exchange modules too

[@sonicase]

cool, I have one of these...the lightbulb thing is a flash so a deaf person can see that the phone is ringing....it would be cool if you had a number we could call in and talk with out TTYs

[@superotterboy7937]

This is bloody amazing! I geeked out when you started typing on one and trasnmitting to the other via the exchange. Dude, never apologize for going down a rabbit hole if this is the result. This technology is beautiful! Had no idea it even existed! Thanks for showing it!

[@arjovenzia]

Awesome, you still hear TTY on the amateur radio bands all the time. Its a bit archaic, but if there is one thing hams love its doing cool things with awesome old tech. being such a common standard, when you do get some public facing phone lines, it would be super neat to just have one of these open to call into. Ive used phone apps to decode RTTY audio, so should be quite accessible. its better done with proper hardware in your actual computer, but thats not the point here. Best of luck finding a proper mechanical TeleTypewriter. I geeked out so hard on curiousmarc's videos on them, they are insane bits of engineering. cheers lad. would love to sink a few pints with ya

[@cottonfoo]

I'm old enough (nearly 50) to have spent some time in old Strowger BT exchanges, mostly at Hatch End and Pinner. The noise, the smell, it was glorious, my step-dad Graham took me around and showed me everything and explained how it worked. Also how "taps" worked and were applied, and if they discovered one they were told to just ignore it :) When Hatch End went digital the entire floor of switches was replaced with one smallish box on the side of the room and it was silent.

[@ChipGuy]

I remember hearing these tones on the shortwave radio band a lot.

[@TheBananaPlug]

RTTY

[@TheFujac]

is that what it was? 7 year old me always assumed i was listening to ships

[@ChipGuy]

@@TheFujac That might well have been the case. German Wikipedia states that ships still use the frequencies 4177,5 kHz 6268,0 kHz 8376,0 kHz 12520,0 kHz and 16895 kHz for this communication (Telex). But today they use more 1.6 GHz Immarsat and others

[@spugintrntl]

They're still there! I got an old shortwave receiver a couple years ago and I pick up these signals all the time. Didn't make the connection of what they were till I read your comment though. Super cool!

[@TheFujac]

@@ChipGuy ha!! that's awesome to know!!

[@retrobro_]

This is amazing! They should still make these, it's way faster and more fun than texting! I also can't believe you can do a backspace, how cool.... I WANT ONE

[@3DPDK]

If you look at the code sheet you'll see that there are several "command" codes; like 11110 rings the bell and 01000 is a carriage return. This code was developed for teletype machines like the ones shown at 5:40. These were basically automatic type-writers that used the code to type out hard copy. The back space is a weird one because on a type-writer a back space does not erase the previous letter. It's normally used to double strike a letter making it bolder than the rest.

[@b-o-a-t3923]

I thought this was a life of Boris video because there’s a thumbnail

[@tobitechboy1461]

So it says “Do not eat“ So ill be 𝗺𝘂𝗻𝗰𝗵𝗶𝗻𝗴 on that later Im still laughing 😂

[@stephenc6648]

Although the acoustic coupler on top makes these things look like an 80s artifact, the fact that the Peterborough code is given as 01733 and not 0733 shows that it must date from 1995 or later. There used to be text relay services which enabled users to type and read conversations with a human operator translating in either direction. If you received a call from a user, it could be a bit disconcerting because you had to realise that you weren't really conversing with the operator but with the person typing and reading messages at the other end.

[@LOOKMUMNOCOMPUTER]

This was 1996 but these were one of the last of these items they had been rebranded but stayed largely the same since early 890’s

[@alexanderthomas2660]

2:22: you should save that for breakfast. If it doesn't go down well, try flushing it with the contents of a lava lamp or a snow globe.

[@siggyretburns7523]

Too slow for binary, huh? I like the old stuff though. I found an old hard drive once (get this) It was about a little bit bigger than 1/2 the size of a shoebox and had a whoppin 5 megabytes. No typo there. 5 (five) MEGAbytes. And it was SCSI too. Very sophisticated for its time. I kinda wish I kept it in tact, but the two neodymiums in it were huge N52s.

[@simonmartin4599]

I designed the BT Textphone back in 2000. It had a fancy V.18 modem. Nonetheless Baudot 50 mode has the best sound...

[@OCSynthesis]

I work for a company called ULTRA TEC (supplying fiber optic polishers, semiconductor prep tool and (I suppose) telephony-related gear) Even to this day we still get one or two calls every week from customers wanting parts for their old ‘Ultratec Minicoms ’. Parts that my company has never made. These calls may very increase again if you start bringing in attention to them… arghhh! Great video, Sam!

[@Tech-NO-City]

With the free version of ham radio deluxe and you can transcode all kinds of digital modes using a PC with a sound card.

[@joshuaosterhout]

Secretly, there is a tiny mario in each one absolutely beating the crap out of a coin block. Each coin is a one.

[@duon44]

At 4:00 it sounds like the beginning of that memey Sonic the Hedgehog song

[@mollemannen]

If you hear that sound you know you getting hacked😁

[@fantasticrectangles1663]

You spend so much time down rabbit holes I'm surprised you don't have long ears and a fluffy little tail by now!

[@retrobro_]

Very fascinating rabbit hole, my good sir

[@FreazyTek]

So it's basically a chatbox pre internet,that's so awesome!!

[@thomasvnl]

So nice that it even supports the backspace over the line

[@cleekersneaker]

Please never stop going down rabbit holes

[@bf0189]

I'd love a collaboration with CuriousMarc. Very interesting equipment he has.....

[@peanutismint]

@2:51 you kind of said "weird science"to the tune of Jolly "Green Giant" sweetcorn adverts....

[@blaisebaileyfinnegan]

New Build idea: teleharmonium

[@blaisebaileyfinnegan]

en.m.wikipedia.org/wiki/Telharmonium

[@LOOKMUMNOCOMPUTER]

ha thats pretty much the plan

[@rickschrager]

TTYs! Those bring back memories. These were in every household that had a deaf person. In mine it was my step daughter. Here in the US we also had TTY operators that were go betweens the deaf and the hearing sort of like TTY translators. Fun!

[@CausticCatastrophe]

looking forward to the teletype rabbit hole!

[@andrejwalilko634]

Oh God is that what baud rate is called for

[@andrejwalilko634]

I'm a plonker I should have waited 1 more minute

[@pflick13]

It only took 13 minutes to expand my mind! Incredible...

[@ninjalo333]

All I can say is... SO F****N COOL!

[@KaizerPowerElectronicsDk]

I was surprised to see that backspace was a feature! *User has deleted this message*

[@marknesselhaus4376]

Oh man, Acoustic modems was the main way to go back in the 70's and into the 80's. Yes my first modem was acoustic so that tells my age a bit :-)

[@midwestnobody8531]

That green phone is a beauty

[@Redcactus5]

I got one of these at the thrift store I work at a while ago

[@PH03N1X0M3G4]

The light socket looks like an 1156. We use them for RV's/campers and the like here in the states. (12V) Sylvania makes one that is LED-based with a LIFETIME WARRANTY. Hope this helps

[@pauljs75]

Stuff similar to that is still used for things like maritime weather reports, and random chats by HAM radio hobbyists. If finding those channels on the radio, it's pretty much the same FSK tones too. Some of the WebSDR sites you can find online (easiest example to play a bit with without having to get some kit yourself) will have a panel that can help decode it, provided the right settings are used.

[@charlespatt]

Reminds me of the Texas Instruments Silent 700 terminal. They used acousticly coupled 300 baud modems and had a built in printer. Back in 1984 i used one to program the Siemens SD192-MX PBX.

[@EdFortune]

It's a bit like two birds tweeting. (Always wondered how birds get social media accounts...)

[@mcmaddie]

Since this is 'no computer' so no biggie, but it's actually using 80C31microcontroller not 8082 (which are actually years). 80C31 is romless (but still has 128 bytes of ram) CMOS version of Intel 8051 microcontroller.

[@lo-firobotboy7112]

"I should do a video about something a little bit weird...." haha...that describes most of your creations. (it's why I love your channel)

[@DAVIDGREGORYKERR]

8250 UART can actually work with 5 data bits 1.5 stopbits.

[@manicmasterofmetal2620]

Sam goes down the rabbit hole and accidently discovers anti gravity and time travel... then he discovers just how deep the rabbit hole goes. Love the channel.

[@derekchristenson5711]

I remember these devices! They're called "TDD" = "Telecommunications Device for the Deaf", as I recall. I even saw them in phone booths now and again, on into the early 2000's. As payphones disappeared, I figured that even the deaf had switched entirely to smartphones, and such dedicated TDD's had become completely obsolete, as anyone -- deaf or not -- could send SMS texts. Fascinating things, though! I vaguely remember reading that, if you didn't have one and wanted to call someone using a TDD, you could use a computer + modem, with your terminal software configured as a simple teletype terminal. A friend and I experimented with it once between our houses, but since we were both using computers + modems, and neither of us knew anyone who used a real TDD, that's as far as it got. This was circa 2000.

[@briero]

I love this! I’ve worked in IT and I’ve only found the origin of Baud rate from this. Have a play with putting your lyrics through this and have the sounds this produces as a rhythm track. What’s the worst that could happen?! 😃

[@sevenandthelittlestmew]

I know these! Used to use them back in the 1980s to call my girlfriend. Her parents were both deaf. Edited because I can’t use words right.

[@ZILOGz80VIDEOS]

You might have more luck setting Cosmo up with bell 103 than Bordeaux

[@oscarmarsh29]

You gave the initials RNII in the video when describing the box label. It's actually RNID, or Royal National Institute for Deaf People, a charity that was until recently known as Action on Hearing Loss. They have since re-rebranded back to RNID.

[@philiptimm2617]

@2:09 it's the RNID, not the RNII - "Royal National Institute for Deaf...people"!

[@deblauweschicht]

I remember these gadgets well. My parents are both deaf and imported a small number of them in the early 80's from the USA to the Netherlands where we live. Those two keys on either side of the space bar that are marked "GA" and "SK" actually produce those two-letter combinations. GA stands for "Go Ahead", to indicate that the other side can now start typing, and SK stands for "Stop Keying", meaning that the conversation is over. The equivalents of respectively "over" and "out". Enjoyed hearing those bleeps again after 30+ years!

[@angst_]

curiousmarc x LMNC crossover episode when!?!?

[@WouterWeggelaar]

A similar protocol is still being used for High Altitude Ballooning, but with ASCII. You can hear an example in the background here: kzbin.info/www/bejne/e3SplWOLna95i5Y

[@Tech-NO-City]

I do all kinds of digital stuff with ham radio. You can use a PC sound card as a modem and hook it to a radio use the AX.25 protocol and bang internet over a analog radio. RTTY and PSK31 there are many other digital modes that work using a sound card. Lots of things use FSK like your wifi router, digital police radio (DMR digital mobile radio) P25.

[@flatfingertuning727]

I wonder how hard it would have been to incorporate TDD support into 1200-baud or faster modems? TDD devices tended to be rather specialized and expensive, but if anyone with a PC and modem could talk to a TDD that would have greatly increased the number of people with whom deaf people could communicate.

[@mikemauro3119]

Walked across the U.S. with a charity hike in 2001, and we used these to send emails and update our website from payphones. Still an unbelievable technology to me. It turns text into sound?!

[@rika8484]

Hey neat, I work for an Ultratec company! Thanks for sharing this!

[@NickBouwhuis]

Aww man. I'll be in England next week but there are no dates listed on the website. Bummer.

[@3DPDK]

Well now I'm really feeling old. Equipment I worked on in the field for United Press International in the late 80s is being put into a museum, and some people watching look at this stuff like it's prehistoric wizardry. Holy crap, no wonder my beard is gray! Aah, but I have one up on the techs of today: Back then, especially as a field tech, you had to be a mechanic as well as an electronic tech. Be glad, young techs, you don't have to figure out what the platen is and how to replace the damn thing (without getting black carbon ink all over your tie and white shirt).

[@jacobbroe5279]

They used this tecnology as a secure radio coded text message, via audio over a (fx) radio in danish military 1990s. A mil version, in handheld size would transmit a ultrafast burst “tweep” that could only be understood by a simular mil version, that used the same keycode. Then the text messages could furthermore be coded if you wanted. Very time consuming, indeed.

[@xpndblhero5170]

11:09 - I love how you can hear him in the background typing like he's playing a synthesizer.... You can hear the space bar SMACK from across the whole museum. 🤣🤣 That sound brinme back to my youth when I was kicked off the phones because I hacked my school computer system through the old phone line by hooking up a switchboard w/ a small piece of wire then calling in from outside the school and playing a specific "tone" over the phone then hooking up to a small computer w/ a small device like this... It took 3 months for them to figure out how I did it but then they also let me fix a dial-up problem w/ the phone lines in the school so they kind of helped me learn how to do it. 😂

[@audiounlimited1963]

Dam, this is amazing! You see that stamp, Ultratec? They're the parent company that produces the Captel phone, produced here in Madison wi. My partner works their tech support line 👍

[@siggyretburns7523]

Hey. What's with the teletubs? You're not gonna do something stupid to them, are you? If anything happens to Laa-Laa, I'll be puttin on my boots. 😂

[@pancudowny]

He talks about something seen in "Weird Science" being in his possession, and I can think of only one thing I'd like in mine: Kelly LeBrock, in the gym uniform! ;D

[@dan0n3]

record a load of secret messages on mp3s that shuffle or are number specific and play it back as messages in a treasure hunt on the mincom 5000 with hints.

[@eatshrots]

holy smoke, fudge me....this is such an exciting video because I got into acoustic couplers myself and got myself a Lear Siegler ADM-5 terminal a couple years ago. I was watching the Matrix and there was literally like a 3 second clip of this weird device where they took a handset from a phone and placed it on some dialer device and then Neo got to "wake up", you can find the clip on youtube by searching The Matrix - Awakening to the Nightmare That Is Reality. I got so interested to find out what that device was and all the sounds from the movie was the sounds of modems and I remembered my AOL days and using 56k and started digging into how modems worked and learned about acoustic couplers. Then I was dying to learn how Baud rate works and this is such a great video. I really need to fly out to England and see your museum. I'm a big synth lover even though I only have at the moment the reissue ARP 2600...(I had plenty others before) but damn this is so awesome I'm about to cry. I want to learn about that telephone exchange thing so bad! lol

[@nand3kudasai]

'Im typing with my whistle' Captain crunch would be proud of you.

[@Resomius]

I mean, cool stuff but: This box filled with equipment from the 90`s must be heavy. How strong are you to lift it just so casual and easily like that. 1:55

[@seoverus7805]

I love reading the comments off all the deaf folks & family members. I know those used to this think nothing of it but I am still moved deeply in my heart to read the stories. The incredible talent of LMNC is like a Universal language of discovery and its wonderful this channel is building community for all. Its A rare & healthy achievement that brings hope and works against the current fear & propaganda.

[@8bitwiz_]

Very nice. I like how the tones time out so that it doesn't scream in your ear all the time like a regular modem. In the states these are officially called a Telephone Device for the Deaf, or TDD. I have two Ultratecs an Ameriphone and one of another brand I can't remember even though I just checked them. As usual they're on the pile of "stuff I should mess with someday not until I can do it right because I don't want more half-opened stuff with missing screws". But the one thing I can tell you is that the plastic door between the phone cups is where the optional receipt printer goes. According to check boxes on the product label, there was also an ASCII version. I have a feeling they sold a lot more Baudot versions. I certainly can't resist a mechanical keyboard though! Got to hack my own code for them or at least set them up as proper wired terminals.

[@TheBananaPlug]

These have a two tone AFSK signaling system similar to RTTY used by commercial and amateur radio ops. There is a video on You tube of one of these being used for this purpose, but I cannot find it just now.

[@autumnbeds]

Why did that sticker have the number for "text"? Doesn't this predate texting?

[@HappyBeezerStudios]

And here in Germany we built our own acoustic couplers because licensed modems were damn expensive. Made from the plumbing section it was known as "Datenklo" (literally "data toilet")

[@DouglasFish]

@CuriousMarc is a rabbit hole legend. We need you get you some HP gear and some fancy pants!

[@dykodesigns]

The rabbit hole goes even deeper, the frequently shift keying was also used by the kansas city standard. It was a standard for loading software from cassette tapes. The BBC micro and the MSX used it, at a baudrate of 1500 baud. If you play a computer cassette it sounds like a dial up modem.

[@alux948]

I got a radio that can tune in to PSK that I usually plug into on my PC to translate as I don't speak 1's and 0's... I'm a big fan of listening on on my FT-817 but I know I need a licence to actually transmit on the thing. Anyone know if there's a online test I can take in order to get a licence to push the talk button in the UK? From what I know you have to go in person to a offical club's location to take the test which would be hard for me to do.

[@binface9]

2:15 I've wanted to know this for some time, weirdly. I couldn't quite place the accent but I used to know someone from Corby so it's not a surprise.

[@redsquirrelftw]

Wow that's actually really cool. Also the sounds remind me of coins in the original Super Mario.

[@rbrooks2007]

"Greetings professor Falken, you are a hard man to find." - out the window the auto-coupler goes. We used to have rolls of that punched (ticker) tape for college projects but it seemed more useful as party bunting.

[@boelwerkr]

The sound brings back memories. My grandfather had a radio receiver with a really wide range. I would tune it to satellite signals and everything wired. There where a lot of this type of signals in the 80th. I had cassette recordings of some of them for a long time. Back then i didn't know what the signals meant. I identified and decoded some of them 15 years later. Some partial weather maps and status texts from oil platforms in the north see.

[@buckstarchaser2376]

That was a better demonstration than when they were not obsolete. If you can find someone with a saxophone, perhaps you could do a re-do of Secret Life of Machines.

[@danjwalker]

I wonder if this is similar to the technology I used to use when placing grocery orders over the phone? I'd use a device to scan bar codes and enter in quantities. After I had entered all the products that I needed to restock, I'd call a warehouse. It was an automated call. It would prompt me to send the order. I'd place the phone on the transmitter (the same device I used to scan all the products I needed) and it would start making old school modem sounds through the phone. Then I'd get a confirmation from a robot voice "Order received".

[@charstringetje]

Sam is like a crossbreed between a dachshund and a ferret. No rabbithole on the British Island is safe.

[@VGA_Guy]

Listening to when you were using the two machines together, it almost sounds like you could use the Telephone Exchange as the worlds more convoluted delay effect.

[@nathanpratt3058]

I love the sound of them so much, it's what I think of when I think of telecommunications

[@nbarrager]

They had one of these in the airport in Flint, MI and whenever my mom and I would go up there to see family I'd play with it while we waited for baggage claim. Never knew what it was for, but I figured it was for business people to send computer data over the phone. It was at a self serve kiosk for I think either a rental car place or a hotel chain. I spent a lot of time doing what you were doing at 4:18.

[@nodeswitch]

Used to support these in a job a bunch of years back. There was an optional printer you could add to the slot that lifts between the I/O that would print off the transcript. Pretty cool!

[@G7OEA]

The kit was provided by the RNID not RNII I used to work at a school for the deaf in southport. We had two of these. Which I had to repair form time to time. The cover in the middle could house a thermal printer to youbjad a record of the conversion. I used to have one at home to call the minicom number for companies that charged premium rates for calls.

[@sondrayork6317]

what you're displaying there is a TTY unit, those are used by the deaf and hard of hearing. our camp has one up in the main lodge. I've seen it being used.

[@rootsquare]

Cool, we used to use minicoms in a London Social Services dept back in the mid 90s to talk to customers. I loved them.

[@2.7petabytes]

TTD device, we had one in a mall, at a pay phone when I worked at an entertainment complex called Exhilirama in the 90’s