Teenix multi calc plus
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04-02-2022, 08:23 AM
(This post was last modified: 06-04-2022 08:01 AM by tangdfx.)
Post: #1
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Teenix multi calc plus
Hello, everyone
Today I introduce the project Teenix multi clac plus. Which is under development yet. You can have a look at below picture. [attachment=10492] The variant hardware: 1 Fluorescent tube display 13 digits ( while the original multi calc use 15 digits LED) 2 The keyboard use cherry mx mechanical shaft The display effect demonstration: [attachment=10493] HP35 HP45 HP55 HP65 HP67 HP21 HP25 HP29C HP19C HP97 HP10C HP11C HP12C HP15C HP16C HP31E HP32E HP33E HP33C HP34C HP37E HP38E HP38C HP41 |
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06-04-2022, 06:49 AM
Post: #2
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RE: Teenix multi calc plus
Hi, All
I updated the progress of this project. Now we can see the running status of this calculator. Although there is a lot work to be done to improve. [attachment=10759] HP35 HP45 HP55 HP65 HP67 HP21 HP25 HP29C HP19C HP97 HP10C HP11C HP12C HP15C HP16C HP31E HP32E HP33E HP33C HP34C HP37E HP38E HP38C HP41 |
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06-04-2022, 11:41 AM
Post: #3
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RE: Teenix multi calc plus
Can it run Free42?
First! Remember kids, "In a democracy, you get the government you deserve." |
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06-05-2022, 09:46 PM
Post: #4
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RE: Teenix multi calc plus
Very nice project! Very similar to my version, the prototype is still working, but I never managed to get it reliable, the ftdi chip kept dieing, I think it is the supply for the tubes that causes this, but I never got quite to the bottom of the problem. There is too much other stuff going on in my life so I kind of dropped the project.
Hope you have better luck with it! Looks very good so far! |
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06-06-2022, 07:05 AM
Post: #5
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RE: Teenix multi calc plus | |||
06-06-2022, 11:12 AM
Post: #6
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RE: Teenix multi calc plus
Hi
The VFD is iv27 from soviet union. The drive voltage is 28V. HP35 HP45 HP55 HP65 HP67 HP21 HP25 HP29C HP19C HP97 HP10C HP11C HP12C HP15C HP16C HP31E HP32E HP33E HP33C HP34C HP37E HP38E HP38C HP41 |
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06-07-2022, 07:03 AM
Post: #7
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RE: Teenix multi calc plus
Thanks!
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06-07-2022, 12:15 PM
Post: #8
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RE: Teenix multi calc plus
Hiļ¼all
The keyboard updated. First version with handwritten. Next version will be printed. [attachment=10766] HP35 HP45 HP55 HP65 HP67 HP21 HP25 HP29C HP19C HP97 HP10C HP11C HP12C HP15C HP16C HP31E HP32E HP33E HP33C HP34C HP37E HP38E HP38C HP41 |
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