Re: Mini ISA ROM Card
Posted on 2023-01-18, 23:18
Yea it is a possibility. I never got to test that board. I'll have to revisit the schematic design when I get back from out of town next month. A bodge could be soldered in place in the meanwhile.
Re: [Project] 386/486/SBC 3D Printed Retro Case
Posted on 2023-01-05, 16:52
oso2k wrote on 2023-01-05, 16:45: Btw, what is that back clamp for? To hold the cards in place. Filename PXL_20230105_165416867.jpg File size 532.35 KiB Views 81 views
Re: [Project] 386/486/SBC 3D Printed Retro Case
Posted on 2023-01-05, 13:24
Update.. finished. Uploaded the files to thingiverse: https://www.thingiverse.com/thing:5766910 Filename PXL_20230104_202045770.NIGHT.jpg File size 1.22 MiB Views 108 views Filename PXL_20230105_004937065.NIGHT.jpg File size 541.61 KiB Views 108 views Filename PXL_20230105_014117720.jpg File size …
Re: New solutions to the ATX -5V problem
Posted on 2022-12-24, 12:42
Cool story. You're only drawing a dozen or so milliamps for an ISA card requiring -5V, so heat is a non-issue.
Re: New solutions to the ATX -5V problem
Posted on 2022-12-23, 11:37
Not necessary. It barely gets warm. Also, you don't want to run the 12v line through the board since the traces aren't rated for pass through at the potential amperage draw.
Re: 3D print topic?
Posted on 2022-11-26, 22:08
Printed Solid Jessie PLA Amiga 500 beige.
Re: Compaq Presario 9232 - CMOS Battery
Posted on 2022-11-23, 22:51
I have the Compaq Presario 9232 as well. I replaced the motherboard battery with a direct replacement. It is a Panasonic BR-1632A/GAN. They are $2 at Digikey. https://www.digikey.com/en/products/detail/panasonic-bsg/BR-1632A-GAN/447502 I bought the computer new in 1996, and the original motherboard …
Re: Is it just me or are Realtek wifi cards hot garbage?
Posted on 2022-11-10, 23:06
I stick with Intel for wired LAN, and Intel or Qualcomm/Athreros for wireless. That said, I did experience my first Intel NIC partial failure in my pfSense firewall. All four ports would just drop about once a month, requiring a reboot. Jetway JNF9HG-2930 with 4 x Intel i211AT. However, it had …
Re: Fabricating a New Turbo Display
Posted on 2022-11-10, 22:53
If some was to go the cheap route, I'd suggest the Pro Mini or Digispark + whatever LED display, then just solder it to a perfboard. It would probably be around $5-6. My project is $10.42 to build, ordering from Mouser with a quantity of 1. Filename mouser.PNG File size 1.46 KiB Views 147 views
Re: Fabricating a New Turbo Display
Posted on 2022-11-10, 22:38
It's essentially the same thing as using an ATTiny85 as I have made. Just a larger footprint with extra I/O. As far as cost to produce them in sets of 10, it would cost more to go the Arduino Nano + LED display + i/o board route. As for a 1-off build, it may be cheaper if everything was sourced from …
Re: Fabricating a New Turbo Display
Posted on 2022-11-09, 03:33
It's not sanded at all, nor painted. The case design files are posted here on Vogons.
Re: Fabricating a New Turbo Display
Posted on 2022-11-09, 02:31
I simply using an arduino nano or just an ATMega328 plus one of those 0.36" 7-Segment Display TM1637. Fits perfectly and way cheaper. Plus you can program it to your own taste. Mine is scrolling and glowing up at start for example. Feel free to post up the pics, schematic for how you have it hooked …
Re: Fabricating a New Turbo Display
Posted on 2022-11-09, 02:28
I have the 2-digit in my 3D printed case. Filename PXL_20221023_225338301~2.jpg File size 777.44 KiB Views 284 views
Re: 3Dfx Voodoo 2 PCB SLI Bridge / SLI Cable
Posted on 2022-11-08, 23:26
I made it 4 layer for signal shielding. Don't think it is necessary, but it also gives a clean top and bottom with no visible traces. The price difference for a board this small is negligible.
Re: ATX to AT pico Adapter! + Fan Headers, -5v, and 3.3v (Released)
Posted on 2022-11-08, 20:18
Have no fear... softpower version. That little Maxim IC fits perfect. https://github.com/wiretap-retro/PICO-AT-Powe … apter-softpower Filename pic.png File size 32.37 KiB Views 214 views
Re: ATX to AT pico Adapter! + Fan Headers, -5v, and 3.3v (Released)
Posted on 2022-11-07, 03:54
I have a latching circuit design on my github.
Re: ATX to AT pico Adapter! + Fan Headers, -5v, and 3.3v (Released)
Posted on 2022-11-05, 16:30
People should just follow the silkscreen. If in doubt, look at the schematic to confirm.
Re: ATX to AT pico Adapter! + Fan Headers, -5v, and 3.3v (Released)
Posted on 2022-11-05, 11:08
Don't know why it doesn't make sense. If you install a capacitor backwards, it will smoke. They are on a negative voltage rail. Ground is more positive than a negative value. 😉
Re: Repairing shorted turbo display?
Posted on 2022-11-04, 01:28
Per the datasheet, it is a direct drive 0.5" common anode display. Those are really common and newly manufactured replacements can be found at Mouser, Digikey, eBay, Aliexpress, Amazon, etc. The transistors can also be found at the same places. All those components can be tested for failure, just …
Re: MP3 hardware decoding ISA cards
Posted on 2022-11-02, 21:28
Yea I looked identical, just all the NSM stuff covered up. As far as Winamp support, I'm sure a plugin could be coded for it.
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