Jump to content

Photo

How rare is the TI-99 Modem?


17 replies to this topic

#1 cbmeeks OFFLINE  

cbmeeks

    Moonsweeper

  • 409 posts
  • Location:Hixson, TN

Posted Tue Feb 5, 2019 8:07 AM

Call me crazy, but I'd love to track down and purchase a TI-99 Modem.

 

http://www.mainbyte....ware/modem.html

 

I've always loved acoustic coupler modems and what better system to use one than on the TI?

 

Of course, I haven't had a land-line in about 12 years but why should that stop me?  :-D

 

Are those things incredibly rare?  Anyone willing to part with one for less money than a used Ford Pinto?  

 

 

 

 



#2 FarmerPotato OFFLINE  

FarmerPotato

    Moonsweeper

  • 257 posts
  • Location:Austin, TX

Posted Tue Feb 5, 2019 11:28 AM

They turn up sometimes. I have acquired two TI couplers with big collections. They don't seem to add a premium!

I used an (Apple) Novation CAT acoustic coupler with my Geneve for a while. (Hello CAT.. I found you in the garage yesterday while looking for Geneve stuff.)

 

They can even talk to each other through the air, a trick I should bring out again for public demonstration.



#3 Shift838 OFFLINE  

Shift838

    River Patroller

  • 2,505 posts
  • SHIFT838
  • Location:Deer Park, Texas

Posted Tue Feb 5, 2019 1:12 PM

I just saw one of these on ebay last week!



#4 cbmeeks OFFLINE  

cbmeeks

    Moonsweeper

  • Topic Starter
  • 409 posts
  • Location:Hixson, TN

Posted Tue Feb 5, 2019 1:26 PM

They turn up sometimes. I have acquired two TI couplers with big collections. They don't seem to add a premium!

I used an (Apple) Novation CAT acoustic coupler with my Geneve for a while. (Hello CAT.. I found you in the garage yesterday while looking for Geneve stuff.)

 

They can even talk to each other through the air, a trick I should bring out again for public demonstration.

 

 

That would be a neat trick.  I assume you put them in reversed positions pointed at each other?



#5 FarmerPotato OFFLINE  

FarmerPotato

    Moonsweeper

  • 257 posts
  • Location:Austin, TX

Posted Tue Feb 5, 2019 2:13 PM

 

 

That would be a neat trick.  I assume you put them in reversed positions pointed at each other?

No, they just answer across the room. They are susceptible to noise though.

 

For my next trick. My brother spliced two RS232 cables together (minus some signals) so that 2 4As could share one modem. It works and you both read the incoming text, until you both try to type at once.


  • jhd likes this

#6 BeeryMiller OFFLINE  

BeeryMiller

    Dragonstomper

  • 816 posts
  • Location:Campbellsburg, KY

Posted Tue Feb 5, 2019 3:07 PM

You can also record the audio with the incoming link of the modems and play that back into the speaker of the modem.  Did that back in the 80's to capture a friends password to his university computer account.

Beery



#7 OLD CS1 OFFLINE  

OLD CS1

    Technomancer

  • 5,921 posts
  • Technology Samurai
  • Location:Tallahassee, FL

Posted Tue Feb 5, 2019 3:28 PM

You can also record the audio with the incoming link of the modems and play that back into the speaker of the modem.  Did that back in the 80's to capture a friends password to his university computer account.

Beery

 

Track 12 of Peace and Love, Inc. by Information Society does this.  It is a recording of a 300 baud signal carrying the text of a short story.  You play it back into a modem to read the story.



#8 Vorticon OFFLINE  

Vorticon

    River Patroller

  • 3,535 posts
  • Location:Eagan, MN, USA

Posted Tue Feb 5, 2019 4:15 PM

Lee Stewart sent me one practically brand new a few months ago to test with my novelty handset pictured below. It fits fine in the cups of the modem. I tried it with my cell phone but it did not work well at all. I was able to occasionally connect to The Keep BBS, but it would hang after a few seconds. I think cell phone connections are too flaky to work reliably for data transmission.

Fun little experiment though :)
 

Attached File  Novelty handset.jpg   22.5KB   4 downloads



#9 arcadeshopper ONLINE  

arcadeshopper

    River Patroller

  • 4,178 posts
  • Location:Portland, Oregon USA

Posted Tue Feb 5, 2019 4:49 PM

Lee Stewart sent me one practically brand new a few months ago to test with my novelty handset pictured below. It fits fine in the cups of the modem. I tried it with my cell phone but it did not work well at all. I was able to occasionally connect to The Keep BBS, but it would hang after a few seconds. I think cell phone connections are too flaky to work reliably for data transmission.

Fun little experiment though icon_smile.gif
 

attachicon.gifNovelty handset.jpg

 

yeah no.. cell calls don't carry the required frequencies. and compression mangles it..so no :)  easier to use your cell as a bluetooth modem and do it all over tcp



#10 Vorticon OFFLINE  

Vorticon

    River Patroller

  • 3,535 posts
  • Location:Eagan, MN, USA

Posted Tue Feb 5, 2019 4:57 PM

 

yeah no.. cell calls don't carry the required frequencies. and compression mangles it..so no :)  easier to use your cell as a bluetooth modem and do it all over tcp

 

How do you set this up?



#11 arcadeshopper ONLINE  

arcadeshopper

    River Patroller

  • 4,178 posts
  • Location:Portland, Oregon USA

Posted Tue Feb 5, 2019 5:05 PM

 

How do you set this up?

 

bluetooth serial device.. and an app i assume, or posssibly a rooted phone and set up the serial device as a console terminal :)    



#12 Ksarul OFFLINE  

Ksarul

    Quadrunner

  • 5,136 posts

Posted Sat Feb 9, 2019 8:25 PM

 

Track 12 of Peace and Love, Inc. by Information Society does this.  It is a recording of a 300 baud signal carrying the text of a short story.  You play it back into a modem to read the story.

Yep, I have that CD. . .but I never took the time to feed the data into a modem.



#13 HOME AUTOMATION ONLINE  

HOME AUTOMATION

    Moonsweeper

  • 314 posts
  • Location:"trapped in interspace"

Posted Sat Feb 9, 2019 9:33 PM

Yep, I have that CD. . .but I never took the time to feed the data into a modem.

Is this the CD you were listening to in the post...

 

#5 icon_share.png :-D

#14 Shift838 OFFLINE  

Shift838

    River Patroller

  • 2,505 posts
  • SHIFT838
  • Location:Deer Park, Texas

Posted Tue Feb 12, 2019 9:19 PM

Call me crazy, but I'd love to track down and purchase a TI-99 Modem.

 

http://www.mainbyte....ware/modem.html

 

I've always loved acoustic coupler modems and what better system to use one than on the TI?

 

Of course, I haven't had a land-line in about 12 years but why should that stop me?  :-D

 

Are those things incredibly rare?  Anyone willing to part with one for less money than a used Ford Pinto?  

 

 

 

 

 

One just popped up on ebay in a lot.  Maybe you can contact the seller to see if he/she would consider selling it by itself.

 

HERE



#15 Ksarul OFFLINE  

Ksarul

    Quadrunner

  • 5,136 posts

Posted Fri Feb 15, 2019 8:00 AM

 

Is this the CD you were listening to in the post...

 

#5 icon_share.png :-D

 

 

It sure was--and the whole CD had the side effect of identifying Information Society as interesting music to Turtles. . .



#16 HOME AUTOMATION ONLINE  

HOME AUTOMATION

    Moonsweeper

  • 314 posts
  • Location:"trapped in interspace"

Posted Fri Feb 15, 2019 1:55 PM

Sounds rather inadvertent...Ha!

Most music is interesting at one time or another...

there was even a time I too appreciated Information Society.

Today... I'd rather see/hear the Tx signal Rx'd. :-D

 

I have an original TI modem... however this thread got me to thinking...

maybe I could use this for a semi customized transmission mode.

If I live long enough...

 

I didn't realize Turtles was yours... I'm sure you're proud!

 

     P.S. that cute little turtle hat inspired me to

            hang the wreath on my L.E.D. matrix! :)



#17 OLD CS1 OFFLINE  

OLD CS1

    Technomancer

  • 5,921 posts
  • Technology Samurai
  • Location:Tallahassee, FL

Posted Fri Feb 15, 2019 6:53 PM

 

It sure was--and the whole CD had the side effect of identifying Information Society as interesting music to Turtles. . .

 

He is right, you know.



#18 Ksarul OFFLINE  

Ksarul

    Quadrunner

  • 5,136 posts

Posted Yesterday, 9:13 PM

I think I played about five hours of Information Society music in the car on the way home from the Faire. . .he definitely got a good taste of it.  :)






0 user(s) are browsing this forum

0 members, 0 guests, 0 anonymous users