Activity Stream

I am using PIC12F629

A very cheap way to check capacitors is one of the little LCR-TC1 testers. Accurate enough for a go-no go test and can identify all sorts of...

That's the way it should be--there's only 03FE worth of flash on the thing. Which PIC MCU did you use? Time, I think, to do some probing with a...

Almost. What I believe is happening is that Fortran disables interrupts, calls the driver, then enables interrupts after the return. The issue,...

They also need to be discharged, else you'll most likely blow up your meter.

Great design, thanks for using through-hole rather than surface mount components which should make it much easier to assemble. And is that a D830? ...

Licensed user back in the day, AND the Russian language add-on. Mike

1984. It was then that I ported my own editor from x80 code, finally. Still use it on occasion (it's pretty small)

Perhaps--they can be a bit abrasive, I understand. And single-use only, obviously.

"Well spotted on the center negative pin, most adapters have center positive pin. " That's one of the things I hate about barrel connectors--no...

There are some inaccuracies in the narrative. The header is identified as an IDE connector; it's a legacy floppy (SA400) connector. He also says...

My understanding of the Fortran run time issue is that Fortran runs with interrupts enabled. The serial ports on omnibus machines wake up so they...

Yes, my Pacific adapter works fine after several years. I'm pretty sure they sell the MMJ cables to order too, I've been using mine with a DEC...

It says 17W power consumption on 12V, so the adapter would have to be capable of a minimum of 17/12 Amps. So a 1.5A rated adapter would just do it,...

Sorry to breathe life into a long dead thread, but I just picked up one of these cards, complete in the box. The box was a little tatty, but when I...

Many thanks John, Bob, and Al in making this possible.

Have played Civilization 4 on my W520 (2860QM, 2000M, 16GB RAM, SSD) for a few days. Turns are so slow on a huge map. Very sluggish. Need to install...

8088 IBM: http://cgi.ebay.com/254838898447 8088 IBM: http://cgi.ebay.com/203250552315 8088 T1000: http://cgi.ebay.com/193856583200 486 IBM:...

Here is a teardown with chip decapping of the two-chip version....

Two hard disk controllers in a system at the same time like that is just asking for trouble. Even if it says it can change the address, or disable...

Yes, I have verified the programming on the PIC using the programmer "Verify" function. I am also able to read back the content, although most of the...

I don't believe their 'stock' numbers. It looks like just about any part has either ~23000 or ~29000 in stock. Highly doubtful if those are...

I'm curious, does this new version support the BASIC 4.0 disk access commands (and relative files), or is it still mostly program-loading only using...

Does it support REL (random record access) files? The original design did not.

Yikes, $45USD for a MMJ->DE9! I don't think I've ever paid more than Pacific's price ($6USD) and most of mine are originals bought in the last 5...

Probably about 3 weeks ago. It still sucks ;)

6120: I got some from utsource.net - this looks like a direct link: https://utsource.net/sch/D1-6120-9C.html 6100: This might (not tested) be the...