Search found 261 matches
- Tue Apr 09, 2024 7:44 pm
- Forum: EXXOS WEBSTORE INFORMATION
- Topic: UK MADE SOLDER NOW IN STOCK
- Replies: 4
- Views: 156
Re: UK MADE SOLDER NOW IN STOCK
Sn63Pb39 - something is wrong with this marking ;) It is a mass percentage composition of an alloy, but this one sums up to 102% :lol: I always used solder wires by Cynel Unipress: leaded Sn60Pb40 (60% tin, 40% lead), lead-free Sn99Cu0,7Ag0,3 (99% tin, 0,7% copper, 0,3% silver). I also have some sol...
- Tue Mar 26, 2024 6:22 pm
- Forum: HARDWARE ISSUES
- Topic: ATARi 1040STE keyboard vs standard 520/1040ST
- Replies: 12
- Views: 549
Re: ATARi 1040STE keyboard vs standard 520/1040ST
I believe 1st and 3rd are the same, but differently broken. Only the 2nd one is different, possibly some early unit. For sure all STf and STe had the same keycaps (but there were at least 2 slightly different keyboards there).
- Sun Mar 10, 2024 9:51 am
- Forum: PSU (power supplies)
- Topic: Another ST series PSU ?
- Replies: 11
- Views: 370
Re: Another ST series PSU ?
It rather is an RPD-60A... no need for 3.3V in the ST.
- Sun Feb 18, 2024 10:07 am
- Forum: RAM UPGRADES
- Topic: Issue with the STM 4MB RAM UPGRADE
- Replies: 18
- Views: 776
Re: Issue with the STM 4MB RAM UPGRADE
He wrote 68Ohm, so 68R - all fine.
Make sure you haven't damaged any traces between chips. Which exactly upgrade were you trying to install?
BTW, I still say that it is enough to cut one resistor to safely disable the on-board RAM on the ST.
Make sure you haven't damaged any traces between chips. Which exactly upgrade were you trying to install?
BTW, I still say that it is enough to cut one resistor to safely disable the on-board RAM on the ST.
- Sat Feb 17, 2024 1:45 pm
- Forum: HARDWARE DISCUSSIONS
- Topic: Vortex AT-Once PC AT Emulator and STE Booster board
- Replies: 12
- Views: 464
Re: Vortex AT-Once PC AT Emulator and STE Booster board
AT-Once has only DIP socket, while STe has PLCC CPU. On that auction link you gave in the 1st post, there is a MegaBus adapter, but if you look closely at it, you will notice, that the PCB is universal and can be either MegaBus or PLCC adapter: https://obrazki.elektroda.pl/9253080700_1708177526_thum...
- Sat Feb 17, 2024 10:41 am
- Forum: HARDWARE DISCUSSIONS
- Topic: Vortex AT-Once PC AT Emulator and STE Booster board
- Replies: 12
- Views: 464
Re: Vortex AT-Once PC AT Emulator and STE Booster board
In STf there is no option to keep the shielding in place... at least not without cutting a big hole in it.
My card has a Harris-branded 80C286 CPU in it. It is a CMOS/low-power version.
My card has a Harris-branded 80C286 CPU in it. It is a CMOS/low-power version.
- Sat Feb 17, 2024 10:26 am
- Forum: HARDWARE DISCUSSIONS
- Topic: Vortex AT-Once PC AT Emulator and STE Booster board
- Replies: 12
- Views: 464
Re: Vortex AT-Once PC AT Emulator and STE Booster board
There were adapters for MegaBus and PLCC socket.
- Sat Feb 17, 2024 9:35 am
- Forum: HARDWARE DISCUSSIONS
- Topic: Vortex AT-Once PC AT Emulator and STE Booster board
- Replies: 12
- Views: 464
Re: Vortex AT-Once PC AT Emulator and STE Booster board
That's strange as 286s or even most 386s used in PCs never required heatsinks. I have AT-Once in my 1040 STf machine and it works without any heatsink. To be more precise I have this AT-Once+ replica: http://atari.myftp.org/atari16bit/atonce/atonce.html I know the Author had serious difficulties wit...
- Tue Sep 19, 2023 9:59 am
- Forum: MEMBER BLOGS
- Topic: exxos 3D soldering machine build
- Replies: 89
- Views: 32126
Re: exxos 3D soldering machine build
I'm guessing you're aiming at something like this, but with an automated solder feed via the modified extruder:
- Thu Aug 17, 2023 10:02 am
- Forum: HARDWARE ISSUES
- Topic: MC68HC000 seems to break STE programs?
- Replies: 7
- Views: 727
Re: MC68HC000 seems to break STE programs?
ICs from different manufacturers may have slightly different pin profiles, thus a new CPU may not have good contact with a socked in which another CPU has been sitting for the last 30+ years. When swapping a CPU for another, you must use Deoxid or a similar product on the socket, especially because ...