Search found 1258 matches

by exxos
Mon Feb 19, 2018 10:24 pm
Forum: ST 16MHz V2.5 BOOSTER
Topic: V2.5 BOOSTER CURRENT PROTOTYPE STATUS
Replies: 112
Views: 4430

Re: V2.5 BOOSTER CURRENT PROTOTYPE STATUS

Tiny update.. PCB's finally arrived :thumbup: Need to do a order to mouser and get the ATF chip and some other bits next...

sec-pcb.jpg
sec-pcb.jpg (135.69 KiB) Viewed 14 times
by exxos
Mon Feb 19, 2018 10:18 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: NEW 30 PIN 1MB SIMM PRODUCTION 2ND BATCH
Replies: 2
Views: 231

Re: NEW 30 PIN 1MB SIMM PRODUCTION 2ND BATCH

Hot stuff - literally :)

Will clean up and test tomorrow :)

simm.jpg
simm.jpg (129.94 KiB) Viewed 18 times
by exxos
Mon Feb 19, 2018 9:21 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: Forum sections updates
Replies: 1
Views: 18

Forum sections updates

IngoQ suggested we "section off" the forum as the list was getting long.. so I have made a start on this...

There's a lot of permissions to copy around also.. so if anything "odd" happens then let me know..

Also note that the main download sections are only available to registered users.
by exxos
Mon Feb 19, 2018 5:09 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: NEW 30 PIN 1MB SIMM PRODUCTION 2ND BATCH
Replies: 2
Views: 231

Re: NEW 30 PIN 1MB SIMM PRODUCTION 2ND BATCH

3RD BATCH IN THE MAKING..

IMG_2282.JPG
IMG_2282.JPG (113.58 KiB) Viewed 31 times
by exxos
Mon Feb 19, 2018 3:36 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: 8 BIT FORUM CREATED
Replies: 1
Views: 37

8 BIT FORUM CREATED

As I got distracted with my 2600 console lately, I plan to do some minor repairs and upgrades to it in the near future. Though as this forum was intended for generally 16 bit machines, we did not really have a section for 8 bit machines and consoles. So the new section is open now, and I don't mind ...
by exxos
Sun Feb 18, 2018 10:56 pm
Forum: TWEAKS & FIXES
Topic: Hissing and whistling in the STe audio output
Replies: 12
Views: 96

Re: Hissing and whistling in the STe audio output

yikes that is bad indeed. Wrap the floppy power cable through a core like this... fc.jpg .. likely you will have to flick out the cables from the connector and wrap around the core about 3 times and put back in the connector. Put a low ESR 1,000uf as close to the motherboard end of the 5V floppy pow...
by exxos
Sun Feb 18, 2018 10:21 pm
Forum: TWEAKS & FIXES
Topic: Hissing and whistling in the STe audio output
Replies: 12
Views: 96

Re: Hissing and whistling in the STe audio output

On my STe, Floppy activity can definitely be heard in the speakers. However, I don't know if it comes from motor, DMA, or something else. My ears would say disk-DMA, but I can't tell for sure. DMA access will create various noise issues, same as RAM access, that I have heard before at some point. T...
by exxos
Sun Feb 18, 2018 9:34 pm
Forum: TWEAKS & FIXES
Topic: Hissing and whistling in the STe audio output
Replies: 12
Views: 96

Re: Hissing and whistling in the STe audio output

The sound seems like digital noise. Try running RAM test and the "tone" will likely change. All the noise is generated and coupled all over the motherboard. When the floppy drive pulls more power from the 5V rail, it affects the way the noise is generated and routed across the board. Floppy drive ha...
by exxos
Sun Feb 18, 2018 5:18 pm
Forum: TWEAKS & FIXES
Topic: Hissing and whistling in the STe audio output
Replies: 12
Views: 96

Re: Hissing and whistling in the STe audio output

I would first try with headphones to rule out other issues firstly. Amplifiers can "hiss" "by design" and its nothing to do with the STE in that respect. Also bad cables between the STE and amplifier can cause all sorts of noise. Its why I suggest headphones to hear exactly what the STE is outputtin...
by exxos
Sun Feb 18, 2018 2:09 am
Forum: CHAT FORUM
Topic: My weekend sorted...
Replies: 3
Views: 121

Re: My weekend sorted...

If it wasn't for that first Atari , I wouldn't have got into Atari machines at all. Oddly the 2600 seems to be much more popular than I thought. I'm going to look into the composite mods for it and see if I can come up with a kit. I know there are countless variations already, but I like to create m...