RetroNinjaNV

Thanks

Thankfully it's a standard dual pin header. Nothing special. I ordered a bunch of them some time ago. They usually come in 50 or 100 pin lengths. From there you just snip it down to the size you need. I may have ordered it on eBay or Amazo. While there are outlier mods it seems 98% of all ribbon cables use this standard - FDD/SCSI/40 pin IDE/VGA/serial.

Do you recall the wattage rating of the resistors?

BLAH! it's a 2N3904 NOT a 2N9304 Any idea which is a good fit? https://www.digikey.com/en/products/filter/transistors-bipolar-bjt-single/276?s=N4IgjCBcpgnAHLKoDGUBmBDANgZwKYA0IA9lANogAMIAusQA4AuUIAykwE4CWAdgOYgAvsQC0AJmQg0kLgFcipCiACsdISJCTIlcQDkAzLCoAWdUA My biggest concern is DC Current Gain of 30@100ma or 100@10ma All of the other specs look the same. I'm also taking for granted all of the suffixes are manufacturer labeling and not important - am I wrong on that?

While I was fixing a self-imposed problem with the FDD cable I cleaned out the factory solder. The R51 top solder hole was a bastardo! It is a huge ground plate which took forever to clean out. Between adding new solder + 'drilling' with a paper clip + solder wick + flux + finding my pointy-est solder tip I was able to finally get it. Look close and you'll see a couple scuffs.

Personally, I'm amazed your pressing the ribbon cable worked. I would not even have tried that, good to know in a pinch.

Done! This was not that bad. I was hesitant to cut the original connector into pieces. While I completely agree with the 'ease of desolder' thinking I did not want to mar the mobo. I was also initially concerned that it may not be a standard 34 pin connector - some crazy Tramiel cheap-out. I did use a desoldering vacuum gun so it was pretty straight forward.

With my Atari haul I also got a 520STf. I imagine I can do the same on that? I haven't pulled that one apart yet.

Ha! I found the thread, sure enough it's here on AtariAge Here's the pertinent data: The parts for the ST circuit are: 3 resistors 10K(R125), 100(R127), and 150(R126), Two diodes 1N916(or google an equivalent) and one transistor 2N9304 (or google an equivalent).

Hey guys, I'm new to the ST series and would like some info. Even though I'm in the US I plan to use a ST video to SCART cable to feed into my SCART to HDMI box (which feeds my monitor). I was hitting some other threads and it seems that readily works if you have a STfm (RF) version but not so much a non-RF version. The rabbit hole led me to a possible fix. If you add some resistors, diodes, plus something else that will produce a sync signal for the SCART to work. I'll need to dig up that thread again to get value and parts but I'm wondering is this a known fix? has anyone here tried it? 1040 STf Rev D most chips show 1986 as their year Thanks!

Hey guys, I'm new to the ST series and wound up with an 1040 STf. Is it correct that the floppy cable is soldered to the mobo? That just seems rather odd to me. I had planned to replace the FDD with a Gotek, yanking on the cable only destroyed the cable and connector. Sigh. Now my plan is to de-solder the 34 pin and replace it with a 34 pin header that I can add and remove the FDD cable as needed. Is there anything else I should know about this before I start?

Excellent! Thanks.

It hard to plan things like this. As of today, is this still a go or is it on a covid-hold?

Hello, I just purchased a 520ST and a Future GTS-100X external floppy disk drive. Unfortunately neither come with their power supplies. I expect to do the Cisco ADP-30RB AC Adapter Power Supply hack to get the ST going. What I'm looking for is the power supply voltage for the FDD. I imagine it is either 5v or 12v but amps is unknown. Does anyone have one of these that they can check? I did find one post on the interwebs about converting it over to a Gotek drive (ditching the real FDD inside the case) and that referred to disconnecting the 12v power to the drive. When I compared pics for the SF314 it shows a 5v supply. Any help is appreciated.

Here's a clip from an eBay sale that just happened. The sale also has a break out of the serial number. Do a search on "Atari Falcon 030 Pilot Production Unit SN: 7" and then select the Advanced> Sold option.