Search found 16 matches

by light655
29 Jul 2021, 08:31
Forum: Want to trade
Topic: [WTT] [H] I-Rocks switches [W] something else
Replies: 0
Views: 315

[WTT] [H] I-Rocks switches [W] something else

I have a keyboard with I-Rocks switches in it, which I would like to trade for something similarly valued (approx. USD50, it retails for 90+ dollar which really don't think it's worth). I-Rocks switches are new Alps clone switches made by I-Rocks in collaboration with alps.tw. It has simplified-Alps...
by light655
23 Jul 2021, 06:01
Forum: Group buys
Topic: Recreate Cherry G81-3077(TKL)
Replies: 37
Views: 2793

Re: Recreate Cherry G81-3077(TKL)

That looks gorgeous! I wonder if you also sell the keycaps?
by light655
23 Jul 2021, 05:11
Forum: Other external
Topic: Great/Interesting Finds
Replies: 25412
Views: 3045328

Re: Great/Interesting Finds

RE the 5100, you might want to ask the seller to pop off a key. You want dome with slider. 1. That is a bit too much. You might be able to find NOS (new old stock) cheaper on ebay. 2. Make sure it doesn't have the AT 6-pin DIN (yes, 6-pin, not 5 pin). 3. The ones with the 5-Pin DIN are supposed to ...
by light655
23 Jul 2021, 04:12
Forum: Other external
Topic: Great/Interesting Finds
Replies: 25412
Views: 3045328

Re: Great/Interesting Finds

I found a BTC-5100 on local shopping website for roughly 40USD shipped. I wonder if this is a good price, for it's a rubber dome, but it is BTC ;) .
Image
by light655
06 Jul 2021, 03:04
Forum: Keyboards
Topic: IBM Model M SSK can't register combination keys
Replies: 0
Views: 258

IBM Model M SSK can't register combination keys

I found a weird behavior of my IBM Model M SKK, if I press certain key combination at the same time, the key's wouldn't register. I don't think this is to do with 2KRO, since the combination I'm having issues with are like "Left-Control" + "F". When I press these two keys together, only the first ke...
by light655
01 Jul 2021, 17:15
Forum: Workshop
Topic: Converting AT keyboard to Bluetooth.
Replies: 0
Views: 272

Converting AT keyboard to Bluetooth.

Since my laptop has a very limited amount of USB ports, I decided to convert my AT keyboards to Bluetooth. The keyboard I decide to convert is a BTC-5339-R0. I connect the AT CLK and DATA pins to a ESP32, which is a micro-controller with built-in Bluetooth and Wifi support. However, the ESP32 runs a...
by light655
29 Jun 2021, 03:50
Forum: Other external
Topic: Great/Interesting Finds
Replies: 25412
Views: 3045328

Re: Great/Interesting Finds

I found a Funkentstort(?) keyboard on local shopping website in Taiwan. https://i.imgur.com/YU2ZIFl.png No idea what this keyboard is, the seller said he/she doesn't have a keycap puller to let me see the switches. https://i.imgur.com/5N63eDS.png This is the label. I did manage to find the FCC ID, i...
by light655
23 Jun 2021, 05:23
Forum: Keyboards
Topic: Best Dome with Slider Boards?
Replies: 24
Views: 1716

Re: Best Dome with Slider Boards?

You can look into foam and foil for rubber dome with N-key rollover, if you don't mind the soft bottom out feel. The "R" version use rubber domes instead of coil springs for return force element.
by light655
07 Jun 2021, 04:01
Forum: Workshop
Topic: Acer KB-101A circuitry questions
Replies: 3
Views: 451

Re: Acer KB-101A circuitry questions

Thanks a lot for the pinouts!

The Data General 6312 indeed looks quite alike this one! I'm afraid I don't have the time to do it too soon, so I'll look for options when I have the time.
by light655
07 Jun 2021, 02:50
Forum: Workshop
Topic: Acer KB-101A circuitry questions
Replies: 3
Views: 451

Acer KB-101A circuitry questions

I've bought an Acer KB-101A from a local recycle centre for 800NTD (approx. 27USD), but it is battered to hell. The case of the keyboard is in pieces, and the AT (or PS2?) connector was cut off. https://i.imgur.com/osa581x.jpg I'm planning to fully renovate this keyboard when I have the time to do i...
by light655
02 Jun 2021, 16:12
Forum: Other external
Topic: Great/Interesting Finds
Replies: 25412
Views: 3045328

Re: Great/Interesting Finds

Just found a Chicony KB-5191 with Aristotle Cherry clone switches on local shopping website for 1100NTD (approximately 40USD). While I think it is an interesting find, I wonder if it is good one? I didn't found much information (video) of this switch, I wonder how does it sound and feel? https://img...
by light655
31 May 2021, 14:55
Forum: Keyboards
Topic: BTC 5339 circuit question
Replies: 10
Views: 880

Re: BTC 5339 circuit question

In short, rather awkward. Mine is the "R" version, the return force element is a rubber dome, I know some variants use springs instead. The top part of the key press (before triggering the keystroke) feels pretty much like rubber dome because it is a rubber dome. The lower part of the key press, on ...
by light655
31 May 2021, 04:12
Forum: Keyboards
Topic: BTC 5339 circuit question
Replies: 10
Views: 880

Re: BTC 5339 circuit question

I bought this keyboard on local shopping website in Taiwan.
by light655
30 May 2021, 16:26
Forum: Keyboards
Topic: BTC 5339 circuit question
Replies: 10
Views: 880

Re: BTC 5339 circuit question

I think that's quite likely, maybe the multiplexer got built in the controller later.
by light655
30 May 2021, 14:53
Forum: Keyboards
Topic: BTC 5339 circuit question
Replies: 10
Views: 880

Re: BTC 5339 circuit question

There a total of eight latches in the two ICs, that wouldn't make a lot of sense as there are only three LEDs to switch.
I thought the multiplexer is built in the controller IC, at least there weren't any ICs other than the cotroller on my other keyboards.
by light655
30 May 2021, 11:47
Forum: Keyboards
Topic: BTC 5339 circuit question
Replies: 10
Views: 880

BTC 5339 circuit question

https://i.imgur.com/KLutvR5.jpg I just bought a BTC 5339R (old new stock) and found out one of the keys aren't responding. So I took it apart and stuck a new piece of foil (cut out from a crisps' bag) on that key, and that was fixed. I've looked at the circuit board in the process of fixing it, and...

Go to advanced search