atkelar | TI-74 - Restoration Project #41 @atkelar | Uploaded March 2023 | Updated October 2024, 19 hours ago.
Restoration Project #41 - TI-74
Back when I was giving some higher education a try - between 1989 and 1992 - I had lots of classmates who were using programmable calculators. It was the fab of the time to me, and since my parents aren't that well off... I never had a chance of owning one. Also, back then, I kept losing and misplacing stuff on a regular basis... so a calculator that was very expensive and not allowed to be used for most exams anyway... was not going to land in my lap soon.
The two models I saw in my school were the Sharp PC-1403H and the TI-74. I found the 1403 one on sale a few years after I made my own money, so I just got a new one. But the TI-74 was beyond reach. And for some reason, the style of the calculator was much more to my taste; the keys are slightly more ergonomic, with it being larger...
I tried to find one for the longest time, but my main problem was: I couldn't remember the model number... My classmates were *very* protective about them, so I only ever saw one from across several desks... Fast forward to about a year ago, and I finally found one on e-bay! Follow me along as I clean up the device, replace an empty battery and also fix another related device!
0:00 Intro
1:45 Disassembly
4:00 Recapping / Battery "Wire"
5:23 Assembly
8:00 Function Test! / Memory Module Battery
10:17 Case Swap
11:44 Printer! Disassembly
12:55 Recapping / Button Swap
13:30 Printer Mechanics
14:00 Printer Assembly
15:20 Printer Test
16:10 Overview / Goodbye / Outtake
Music:
My Train's A Comin'
Unicorn Heads
(YouTube Audio Library)
You can support me on Ko-Fi: ko-fi.com/atkelar
Restoration Project #41 - TI-74
Back when I was giving some higher education a try - between 1989 and 1992 - I had lots of classmates who were using programmable calculators. It was the fab of the time to me, and since my parents aren't that well off... I never had a chance of owning one. Also, back then, I kept losing and misplacing stuff on a regular basis... so a calculator that was very expensive and not allowed to be used for most exams anyway... was not going to land in my lap soon.
The two models I saw in my school were the Sharp PC-1403H and the TI-74. I found the 1403 one on sale a few years after I made my own money, so I just got a new one. But the TI-74 was beyond reach. And for some reason, the style of the calculator was much more to my taste; the keys are slightly more ergonomic, with it being larger...
I tried to find one for the longest time, but my main problem was: I couldn't remember the model number... My classmates were *very* protective about them, so I only ever saw one from across several desks... Fast forward to about a year ago, and I finally found one on e-bay! Follow me along as I clean up the device, replace an empty battery and also fix another related device!
0:00 Intro
1:45 Disassembly
4:00 Recapping / Battery "Wire"
5:23 Assembly
8:00 Function Test! / Memory Module Battery
10:17 Case Swap
11:44 Printer! Disassembly
12:55 Recapping / Button Swap
13:30 Printer Mechanics
14:00 Printer Assembly
15:20 Printer Test
16:10 Overview / Goodbye / Outtake
Music:
My Train's A Comin'
Unicorn Heads
(YouTube Audio Library)
You can support me on Ko-Fi: ko-fi.com/atkelar
