Search found 785 matches

by Engicoder
19 Nov 2019, 19:04
Forum: News
Topic: Stuff you just bought
Replies: 1801
Views: 114384

Re: Stuff you just bought

What the heck is that? Hard to tell depth from photo but appears quite low profile, yes?
by Engicoder
14 Nov 2019, 16:47
Forum: Workshop
Topic: [Interest Check] FK-5001/9000 calculator replacement
Replies: 7
Views: 329

[Interest Check] FK-5001/9000 calculator replacement

Background Some time ago, I developed a replacement for the stock, failure prone calculator module in the Focus FK-9000. This project was essentially a "two" off that I made for myself and Chyros. You can see the module on Chyros' youtube channel in his "Project F" at around the 10:30 mark . In the...
by Engicoder
12 Nov 2019, 15:09
Forum: Gallery
Topic: IBM System 9000 keyboard and picture of unknown Model F
Replies: 23
Views: 3146

Re: IBM System 9000 keyboard and picture of unknown Model F

Nice work on the research! I really wish more of these would turn up in the real world. I imagine the total number made was low and the due to their research/lab usage they didn't end up in the normal computer recycling pipeline when retired
by Engicoder
25 Jun 2019, 15:33
Forum: Off-topic
Topic: Unpopular opinions thread
Replies: 371
Views: 30468

Re: Unpopular opinions thread

Not sure I follow. What do you mean by "US English" layout being supported by ASCII? ASCII predates pretty much any keyboard layout.
by Engicoder
24 May 2019, 17:02
Forum: For sale
Topic: Heathkit ATX-10
Replies: 5
Views: 504

Re: Heathkit ATX-10

Those are quite nice. I think it is actually an HTX-10, H for Heath. Same as the Zenith ZTX-10, Z for Zenith. They are neat little terminals.
by Engicoder
17 May 2019, 16:02
Forum: For sale
Topic: FS: PS/2 or ADB to USB R3scan® converters
Replies: 7
Views: 821

Re: WTS: R3scan® PS/2 or ADB to mUSB converters

These look nice and compact. Good job on the case. Good luck!
by Engicoder
16 Apr 2019, 19:37
Forum: Keyboards
Topic: Have any of the selectrics ibm turned into old computer keyboards been found in the wild/alive?
Replies: 1
Views: 258

Re: Have any of the selectrics ibm turned into old computer keyboards been found in the wild/alive?

There was a specific model called the "I/O Selectric 731" that was produces with all the electronics and hardware to interface for both input and output, hence the I/O tag. There are few pics here: https://www.vaxbarn.com/index.php/other-bits/362-ibm-731. Some of this was used in the later Selectric...
by Engicoder
12 Apr 2019, 15:22
Forum: Workshop
Topic: g80-3000 replacement pcb
Replies: 8
Views: 746

Re: g80-3000 replacement pcb

I'd be in for one as well
by Engicoder
06 Mar 2019, 15:05
Forum: Keyboards
Topic: Turn a model m into a fake ssk
Replies: 19
Views: 1868

Re: Turn a model m into a fake ssk

Nice job. This is one of the better looking cut jobs I have seen.
by Engicoder
22 Feb 2019, 00:05
Forum: Gallery
Topic: Focus FK-2000 Plus
Replies: 5
Views: 664

Re: Focus FK-2000 Plus

That is really clean example! Nice find, snacks!
by Engicoder
02 Feb 2019, 05:30
Forum: Workshop
Topic: NMB PC122 Converter Saga
Replies: 5
Views: 524

Re: NMB PC122 Converter Saga

Great work and excellent write up! Who would of thought you could find the controller chips for sale.
by Engicoder
22 Jan 2019, 19:47
Forum: Gallery
Topic: IBM stash in Houston
Replies: 41
Views: 3954

Re: IBM stash in Houston

Nice. That space invaders board looks essentially new. I bet those feel nice.
by Engicoder
16 Jan 2019, 16:14
Forum: Workshop
Topic: Cleaning a plate without removing switches
Replies: 20
Views: 1389

Re: Cleaning a plate without removing switches

Hypersphere's instructions are excellent. I will add that I find having some foam swabs in addition to cotton ones is useful as they come in several sizes and don't leave fibers on sharp edges. I find these small ones are useful to get in the narrow areas and crevices. https://www.amazon.com/Semi-Fl...
by Engicoder
11 Jan 2019, 19:36
Forum: Gallery
Topic: IBM stash in Houston
Replies: 41
Views: 3954

Re: IBM stash in Houston

Who knows what treasures are hidden in the heap. Good luck!
by Engicoder
09 Jan 2019, 02:50
Forum: Gallery
Topic: Atari PC2 8088 Keyboard
Replies: 2
Views: 489

Re: Atari PC2 8088 Keyboard

Really nice. I love seeing rare space invaders boards. Holy card fish look at those feet!!
by Engicoder
07 Jan 2019, 19:58
Forum: Keyboards
Topic: Making a Secure Keyboard
Replies: 13
Views: 1075

Re: Making a Secure Keyboard

Some of the teensy boards have a microcontroller with a small amount of eeprom (1K), which is persistent, but no other persistent memory. More could be added by connecting an external eeprom or disk storage such as an SD card.
by Engicoder
07 Jan 2019, 01:23
Forum: Want to buy
Topic: Atari PC2 8088 Keyboard
Replies: 1
Views: 261

What caps do you need? I have some extra space invader caps, as long as they aren't specific to that board I may be able to help.
by Engicoder
02 Jan 2019, 22:59
Forum: Deskthority talk
Topic: DT Update Log and TODO
Replies: 438
Views: 30661

Fingers crossed.
by Engicoder
24 Dec 2018, 05:16
Forum: Gallery
Topic: IBM Model F AT restoration
Replies: 17
Views: 1405

Looks great! I agree with fohat, the ANSI enter/backslash and backspace mod is well worth doing for the 2u backspace and does not require any non reversible modifications.
by Engicoder
21 Dec 2018, 19:39
Forum: Gallery
Topic: IBM Model F AT restoration
Replies: 17
Views: 1405

fohat wrote: Whoa!

That mat looks very thick and stiff.
Will it squish? :lol:
by Engicoder
21 Dec 2018, 19:37
Forum: Gallery
Topic: What's in the box?!?!?! (IBM Industrial SSK)
Replies: 17
Views: 1525

Nice pickup. Good luck with straightening that case. That should be an adventure!
by Engicoder
17 Dec 2018, 00:21
Forum: Gallery
Topic: IBM Model F AT restoration
Replies: 17
Views: 1405

This thread covers the various options people use
keyboards-f2/replacement-foam-mat-for-i ... t8033.html
and this one from GH
https://geekhack.org/index.php?topic=58814.0
by Engicoder
13 Dec 2018, 17:20
Forum: Keyboards
Topic: What do "M" and "F" stand for?
Replies: 34
Views: 3865

It's simply the IBM designation for the technology used for the line of keyboards.
by Engicoder
12 Dec 2018, 20:51
Forum: Workshop
Topic: A solution for cracked Hi-Tek switches (VT100, Hazeltine, HP, etc.)
Replies: 15
Views: 1137

Smart idea. The slight loss in travel seems very acceptable to have a functioning key.
by Engicoder
11 Dec 2018, 06:47
Forum: Keyboards
Topic: Alps switch identity?
Replies: 7
Views: 604

Noodle called it, its alps spring over membrane. I have a few loose examples of this switch as well. Also the same switch with white slider.
by Engicoder
11 Dec 2018, 03:43
Forum: Workshop
Topic: C.ITOH CIT324/324E - Alps Buckling Springs... (Conversion to USB?)
Replies: 38
Views: 2822

Nice work! Agree, that clicker is a bit much. :shock:
by Engicoder
11 Dec 2018, 02:29
Forum: DTA News
Topic: Deskthority Awards 2018: the Winners!
Replies: 71
Views: 11094

I had a friend who was able to debug code by listening to the PC beeper tonal fluctuations (this is actually a true story) I had a problem about 20 years ago where I had to use subtle variations in drive light activity as part of my debugging for a file replication problem. Of course this was back ...
by Engicoder
11 Dec 2018, 02:20
Forum: Workshop
Topic: Low quality solder, iron, and desoldering iron - burnt my PCB pads
Replies: 24
Views: 1237

@__red__ touched on two important factors that most beginners under appreciate: flux and tip selection. Flux does wonders for getting solder to behave nicely and the correct tip allows for quick work without over or under heating. This old video covers from Pace the basics better than any other I ha...
by Engicoder
11 Dec 2018, 00:09
Forum: Deskthority talk
Topic: Future of DT
Replies: 83
Views: 9460

Edit: hansichen already mentioned this, but... The wiki is invaluable and I have a long list of things I have been meaning to add. My biggest hurdle is the amount of time it takes to add a set of pictures to the wiki. The current process requires adding each picture individually and entering the sam...
by Engicoder
10 Dec 2018, 23:33
Forum: Keyboards
Topic: Zenith Z-150 black badge still not convert-able?
Replies: 5
Views: 483

It is most certainly convertible. The problems have been that existing configurable converters such as Soarer's do not handle it correctly at all times, specifically the reset line. There are a number of "XT" keyboards that have proprietary variations from what IBM used with it's PC/XT keyboard and ...

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