Re: Voodoo pass-thru cable question
Posted on 2016-10-27, 01:23
Search for "VGA port saver", buy one of the 6" - 12" ones. http://www.ebay.com/sch/i.html?&_nkw=VGA+port+saver
Re: Are you missing -5volt too?
Posted on 2016-10-26, 23:31
Malvineous wrote: I'm not actually sure what voltage you would get as I don't know how to calculate it. @SquallStrife any ideas? +12 + (-5) = +7
Re: Well, should I ask this girl to coffee or not?
Posted on 2016-10-26, 06:44
Ah well, nothing ventured nothing gained! Better luck next time.
Re: Are you missing -5volt too?
Posted on 2016-10-25, 22:56
Is anybody's saying that you can only have positive voltages in relation to GND? Nobody is saying that. What we're saying is that you can't get negative voltages from a positive one using linear regs, and pointing out that even though your 79xx might produce a negative voltage relative to its own " …
Re: Is there a go to cd-rom drive for Dos6.22/Win3.11?
Posted on 2016-10-25, 06:42
If you get a DVD-RW drive, you can read DVD-RW's in your DOS machine, as long as they are mastered with an ISO9660 filesystem (i.e. not UDF). So that's something!
Re: Are you missing -5volt too?
Posted on 2016-10-25, 00:42
negative voltage isnt magic, all it is, is the adjust of your reference point, which is why we feed GND into the 7905 input, and 12v as its input, changing its reference point, input - common = 0 - 12V = -12V Right. And while you've adjusted the reference point for the regulator, the reference …
Re: Are you missing -5volt too?
Posted on 2016-10-24, 13:16
Yep, and that won't work. The regulator will only give you -15v with respect to its ground pin, which is at +24v. 24 - 15 = +9v (with respect to circuit ground)
Re: [retro swim] - An episodic video tour of SquallStrife's retro junk
Posted on 2016-10-24, 10:16
Cheers man! 😀 Part 4 (the final part) of Episode 36 is live! I get the sound card playing nicely with the sans-negative-12v Teradrive, and mix the outputs for added convenience. https://www.youtube.com/watch?v=dC0GcdZ14Cg
Re: Are you missing -5volt too?
Posted on 2016-10-24, 05:01
I knocked out a 7805/7905 schematic. I have not tested it yet ofcourse; osh park link to gerbers; https://oshpark.com/shared_projects/r59Tj1Ia feed +12/GND in, get +5, GND, -5 out. throw some 10uf caps or something on there to smooth it out. I should probably throw an LED on the +5V output so there …
Re: Are there 386 motherboards that can't use VGA?
Posted on 2016-10-24, 02:50
I meant OP. He jumped to the conclusion of it being a video card problem (see thread title), while skipping basic mobo troubleshooting steps. IMO it's been evident since day 1 that the mobo has other issues. There's a reason bad RAM is almost always denoted by long solid beeps: without RAM, the CPU …
Re: Are you missing -5volt too?
Posted on 2016-10-23, 07:13
Depending on how much current you need, you could try the ICL7660A, which is a switchmode-inverter-on-a-chip, needing just 2 external capacitors to produce a -12v rail from +12v, or -5v from +5v. Using it successfully to run a SB16 in my Teradrive, which only provides +5 and +12 from the PSU.
Re: Are there 386 motherboards that can't use VGA?
Posted on 2016-10-23, 07:04
It's not the video card, you've led yourself up the garden path by assuming it has been this whole time. Bad RAM is going to be the culprit, or possible one of the discrete logic chips.
Re: How to stop 'computer thinking' noise?
Posted on 2016-10-19, 22:52
But that would devalue my CT1600 if I ever want to sell it. Pfft. If that's your concern then why are you even /using/ any of this stuff? Besides, the YMF262 is a surface-mount part, if you're careful you could lift the IC's leg without damaging anything, and restore it later without any sign that …
Re: Well, should I ask this girl to coffee or not?
Posted on 2016-10-17, 23:18
Just to buck the trend: http://i.imgur.com/dI90OBy.jpg :D Nah but seriously, just brooch it casually after a positive exchange in a conversation. "Say, I was thinking maybe you and I could go get a coffee together some time, what do you say?" is what I understand to work. Take my advice with a grain …
Re: Why was 15kHz support dropped from the VGA standard?
Posted on 2016-10-16, 05:25
8088 Domination wouldn't run, but then again this system doesn't currently have a SoundBlaster. I tried with the /q switch, but the image is garbled beyond recognition. Depending on the type of garbling, that may indicate that the pixel clock is not synchronized to the colour carrier. Another …
Re: Bought these (retro) hardware today
Posted on 2016-10-14, 02:19
PhilsComputerLab wrote: SquallStrife wrote: PhilsComputerLab wrote: Haha, good idea, could become my "signature" 😀 They truly are the pale hands of an indoorsy retro nerd! 😜 I actually have an all year tan pretty much 🤣 So.... gloves when outdoors? 😜
Re: Bought these (retro) hardware today
Posted on 2016-10-14, 01:22
PhilsComputerLab wrote: Haha, good idea, could become my "signature" 😀 They truly are the pale hands of an indoorsy retro nerd! 😜
Re: Newly minted retro PC: is there a market?
Posted on 2016-10-13, 23:00
keenmaster486 wrote: I'm a "youngster" (18 years old) Ah, that explains a bit! 😀
Re: Smacker to Bink wrapper
Posted on 2016-10-13, 06:03
IllidanS4 wrote: Well, I would certainly prefer not having lots of 640x480 cutscenes taking 400 MB in total, when they could be of much greater quality with same or less size. How do you propose to increase the quality of already-compressed files?
Re: http://www.vogonsdrivers.com/ How do I submit/upload DOS/Win9x Drivers/Software?
Posted on 2016-10-11, 23:31
Panties, if you just have a handful of images, put them on mega.co.nz or Dropbox or Google Drive or something, give me a link, and I'll upload the files. candle_86, it'd be good to see what's in them, at least we can compare them with we already have.
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