TI-58 Slimline



#8

I never liked the bulky shape of the TI-58/9. It was necessary for the 59's card reader but not for the 58. Opening it up shows a lot of empty space. So why not cut it out?

A kind forum member sent me some disused case backs and I applied a Dremel cutter and some wet sandpaper. I added a new clear bottom and a cell phone battery. It needs finishing, such as black paint around the edges. It's now only as thick as a TI-84 and I hope to use it as a daily driver, if the battery life allows.


#9

Another example of a geek with too much time on his hands. [:-)

Where were you 30 years ago?


#10

30 years ago I was programming my 2nd personal computer, a TI-59 (couldn't afford an HP). 1st was a TI SR-56, 3rd was an Atari 400 (couldn't afford an Apple II).

Besides, where were Lithium ion batteries 30 years ago?

Edited: 26 June 2010, 10:13 a.m. after one or more responses were posted


#11

Very nice, I love it also. Keep us informed about battery life.

#12

Quote:
30 years ago I was programming my 2nd personal computer, a TI-59 (couldn't afford an HP).

I was programming a TI-59 myself, my first calculator/computer. A slimmer TI might have appealed to me back then...
#13

I love it! Very nice work.

Edited: 25 June 2010, 9:42 p.m.

#14

Since it won't hold itself at an angle anymore, now all you need is one of those neat angled desk calculator holders EduCalc used to sell!

#15

Finally, the back is finished.


#16

Pretty neat!!!! Congratulations!

Luiz (Brazil)

#17

Hi,

Nice job indeed. One tech question: Is the Li-Ion battery charger included into the calculator body or is the battery charged by a separate charger/device?

Cheers from Spain.

Diego.


#18

I use a broken cell phone to charge the battery. But yours is an interesting idea, if I can remove the charging circuit from the phone or find a small charger. Hmm, I thought I was done with this project!

#19

I wonder if that's possible with the 48G housing.


#20

The 3.7 V Li Ion battery does 850 mAh, which matches nicely the voltage and capacity of the old 3-cell NiCd packs from HP and TI. I don't know about the 48G, though.

In use, the battery does not get as warm to the touch as the 58's DC-DC converter.

#21

Very nicely done!!!!!


Possibly Related Threads...
Thread Author Replies Views Last Post
  Question to TI-58/59 Programmers Namir 12 1,473 08-09-2012, 10:15 PM
Last Post: Luiz C. Vieira (Brazil)
  TI 58 / 59 Master Library Survival Guide booklet Gene Wright 13 1,431 10-15-2011, 12:31 AM
Last Post: Eddie W. Shore
  TI Selling new TI NSpire Touchpad Namir 9 1,223 04-20-2010, 06:20 PM
Last Post: Bart (UK)
  TI-58/9 Case Bottom ClausB 1 419 03-19-2010, 11:25 AM
Last Post: Michael Meyer
  OT: Great Texas TI 58/59 Compiler. gileno 4 693 03-03-2008, 03:28 PM
Last Post: Paul Dale
  Comparing Ti 89 Titanium vs. Ti 84+ SE vs. Hp 50g PhysicsNerd 16 1,496 01-05-2008, 10:37 AM
Last Post: EL
  difference between TI-Nspire and TI-Nspire CAS Don Shepherd 7 976 08-05-2007, 07:41 AM
Last Post: Don Shepherd
  TI-Nspire, TI-Nspire CAS, early Prototype Joerg Woerner 3 565 07-25-2007, 02:03 PM
Last Post: Joerg Woerner
  TI USA Warming up for new TI NSpire Calculator Namir 4 704 09-12-2006, 11:45 AM
Last Post: Jeff Wolfe
  Ti 59 unused by Ti engineer hal 11 1,176 08-21-2006, 10:49 PM
Last Post: Palmer O. Hanson, Jr.

Forum Jump: