butjer1010 wrote on 2025-07-23, 19:32:

So i did my fist try, hope it is ok. pin 1/244 to pin 1/pal pin 5/244 to pin 11/pal pin 10/244 to pin 10/pal pin 18/244 t […]
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So i did my fist try, hope it is ok.
pin 1/244 to pin 1/pal
pin 5/244 to pin 11/pal
pin 10/244 to pin 10/pal
pin 18/244 to pin 11/pal
pin 20/244 to pin 20/pal

Will not connect until You gave me Your "blessing" 😀
Hope You can see on picture every wire i have solder.

OK, this will not work as is, but it wont damage anything as well. First, you have a typo in your description. Pin 18 of the 244 is connected to pin 13 of the PAL, not pin 11.

The supply voltage connections are fine: Pin 10 and Pin 20 copied from the PAL to the 74LS244 is perfect. Also, applying the enable signal to pin 1 is fine. But this enables these four buffers: Pin 2 to 18, pin 4 to 16, pin 6 to 14 and pin 8 to 12. You connected pin 18 to PAL pin 13. This is fine: pin 18 is a buffer output pin of a buffer that is controlled by pin 1. But that buffer takes it input on pin 2, not on pin 5! Actually, pin 5 is an output pin of a different buffer. You thus need to move the wire that connects pin 11/pal to pin 5/244 to pin2/244. Everything else looks fine.

mkarcher wrote on 2025-07-23, 21:35:

butjer1010 wrote on 2025-07-23, 19:32:

So i did my fist try, hope it is ok. pin 1/244 to pin 1/pal pin 5/244 to pin 11/pal pin 10/244 to pin 10/pal pin 18/244 t […]
Show full quote

So i did my fist try, hope it is ok.
pin 1/244 to pin 1/pal
pin 5/244 to pin 11/pal
pin 10/244 to pin 10/pal
pin 18/244 to pin 11/pal
pin 20/244 to pin 20/pal

Will not connect until You gave me Your "blessing" 😀
Hope You can see on picture every wire i have solder.

OK, this will not work as is, but it wont damage anything as well. First, you have a typo in your description. Pin 18 of the 244 is connected to pin 13 of the PAL, not pin 11.

The supply voltage connections are fine: Pin 10 and Pin 20 copied from the PAL to the 74LS244 is perfect. Also, applying the enable signal to pin 1 is fine. But this enables these four buffers: Pin 2 to 18, pin 4 to 16, pin 6 to 14 and pin 8 to 12. You connected pin 18 to PAL pin 13. This is fine: pin 18 is a buffer output pin of a buffer that is controlled by pin 1. But that buffer takes it input on pin 2, not on pin 5! Actually, pin 5 is an output pin of a different buffer. You thus need to move the wire that connects pin 11/pal to pin 5/244 to pin2/244. Everything else looks fine.

Yes, i did a typo, it is connected to pin 13/pal, not 11. I did make a change from 5 to 2, and now is ready to try it 😀
Will let You know of the results

Yesss! it works perfectly!!!!
Now just to see if this GAL is ok, i will order it, and sometimes when i will have enough time, i will try to program it with this file deunan sent me, and see if that works either. If not, i can always revert to this state!
Need to find brightness potentiometer for this monitor, and IO bracket for this graphics card, and my 2nd EGA PC is done 😀
Thanks to all geniuses here, i don't know how much i can thank You enough!!!!

butjer1010 wrote on 2025-07-23, 17:39:

As You said, it is in list of my T48 (ATF16V8B) https://www.ebay.com/itm/226559768634?_skw=AT … ABk9SR-iO54WHZg https://www.ebay […]
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Deunan wrote on 2025-07-23, 17:02:

Before you buy make sure it's a type supported by your programmer. That's why I suggested ATF16V8B - I know this one works because I've used them myself.

As for F and LS series, both will work but F is meant for much higher switching speeds. It will draw more power, run hotter - this might matter if you place this new chip close to existing ones. It can also inject more noise into power rails if you don't put a capacitor nearby. I would prefer LS, ALS, or maybe a more modern HCT or ACT would be good enough for this as well.

As You said, it is in list of my T48 (ATF16V8B)
https://www.ebay.com/itm/226559768634?_skw=AT … ABk9SR-iO54WHZg
https://www.ebay.com/itm/204789149078?_skw=AT … ABk9SR96wh4aHZg
Hope those ones are ok?
Ok, than F is out 😀
I have found GAL16V8D-25QP-LATTICE in one local shop, so it could arrive next day if this one is ok. I have it in T48 database, but is it ok for this job?
Thanks

I still didn't get answer if those 2 are ok. Should i order one of them to program it?

Yes, those will work, provided the chips are not fake or damaged somehow.

Deunan wrote on Yesterday, 19:28:

Yes, those will work, provided the chips are not fake or damaged somehow.

Thanks man, that's way i search in Europe, not China (hope for the best).
Will order one right....