Re: Weird unknown Xebec ISA card?

Posted on 2020-02-16, 09:57

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay - mystery "solved". There were some "intelligent" SASI drives which included everything on board, allowing the host adapter to be an extremely stupid and simple board. I suppose this made things simpler for manufacturers since they had just to build different dumb (and cheap) HBAs for different …

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Re: Weird unknown Xebec ISA card?

Posted on 2020-02-15, 21:47

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

All older ISA SCSI and SASI have terminator resisters on the card near the connectors which your card does not. I am guessing it is an interface card similar to what Apple II and early PC used for some tape drive. The FCC ID came up with next to nothing other than being similar to some Xebec Apple …

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Re: Weird unknown Xebec ISA card?

Posted on 2020-02-14, 15:39

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I would have guessed SCSI-1 as well, but for that, the card is too dumb. SCSI requires some sort of CPU or micro-controller, but there are only 74LS chips and PALs on the card. It seems there's only one other picture of an ISA SASI controller on the entire interwebs and it has kinda the same amount …

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Weird unknown Xebec ISA card?

Posted on 2020-02-14, 10:19

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi everyone, I recently got this weird Xebec ISA card: IMG_20200214_094619.jpg I'm not sure what to make of it - the codes on the card lead nowhere on teh internets. It has a 50 pin header and a 25 pin external connector, so my guess was some kind of SCSI card but I can't see any of the known single …

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Re: 8088/XT build advice

Posted on 2020-02-08, 09:54

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for your replies, everyone! I do have a bunch of OPL2 chips bought from China - I suppose I could build myself an Adlib clone and put the SB2.0 in the 286. In the meantime I'll probably use one of the bunch of soundcards I've got laying around that work in an 8-bit bus. I looked into Tandy 3- …

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Re: 8088/XT build advice

Posted on 2020-02-03, 16:08

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, If you have 2 boards, the CGA with the 4.77 machine and EGA for the turbo XT. EGA games like the sierra games, lucas art games, grand prix circuit…. work well Lemmings and prince of persia are slow. MFM disk are difficult to find working, so XT-IDE with DOS 3.31 or DOS 5.0 if you have more than …

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8088/XT build advice

Posted on 2020-02-03, 14:38

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi everyone, I'm currently setting up my 8088 machine (having some issues with AT2XT using 12F675 which hopefully will be solved with a 12F629) and I'm currently lacking a hard-drive card along other things. My main issue is that I'm still unsure on what kind of machine this should be - especially …

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Re: BlasterBoard 2.0 : A modern SB 2.0-compatible ISA sound card

Posted on 2019-01-02, 10:24

by

by jbenam

in Marvin \ Sound

in Marvin \ Sound

Definitely interested too, thread bookmarked! I'd love a SB 2.0 clone, since original ones are going for crazy prices 😵 Really looking forward to this!

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Re: HardMPU, anyone?

Posted on 2018-09-17, 15:55

by

by jbenam

in Marvin \ Sound

in Marvin \ Sound

@ab0tj Looks like I have some slight trouble in replying to your PM since I haven't got enough posts to be able to send out PMs yet. Would you mind sending me your email address thru PM so that I can reply using that instead? Thanks again 😀

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Re: Is it worth it to get an EGA card?

Posted on 2018-09-17, 15:29

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hm i never got any VGA Card with EGA fully combatible with EGA. Many Software still detects VGA.. and often you can't change that behavior. Connecting a EGA Monitor to a OAK for example will not give you what you expect. I can confirm this 100% it has been my experience as well. Games just detected …

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Re: HardMPU, anyone?

Posted on 2018-09-16, 08:41

by

by jbenam

in Marvin \ Sound

in Marvin \ Sound

Hi ab0tj, do you still have a bare board available? I'd like to build one of these myself, if possible. Thanks! 😀

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Re: Music Quest MPU clone cards, anyone interested in them?

Posted on 2018-09-16, 08:39

by

by jbenam

in Marvin \ Sound

in Marvin \ Sound

keropi wrote: Nope, just ready to use cards.... Ouch, nevermind then - I was looking for something I could build myself and save some pennies... Thanks anyway 😀

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Re: Music Quest MPU clone cards, anyone interested in them?

Posted on 2018-09-15, 08:19

by

by jbenam

in Marvin \ Sound

in Marvin \ Sound

Hi keropi, is this available as a kit? Thanks!

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Re: Is it worth it to get an EGA card?

Posted on 2018-09-15, 08:18

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Wasn't the whole idea of EGA to allow people to continue using their CGA monitors? Hence wouldn't the EGA card sense that it was connected to a CGA monitor, maybe, and disallow the highres modes? That is an interesting idea. I do know that some EGA cards had autosensing, not sure if it was *that* …

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Re: Is it worth it to get an EGA card?

Posted on 2018-09-10, 12:46

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can't I just use something like this TTL-to-VGA converter to attach the EGA card to my MultiSync? https://gglabs.us/node/2022 (this one is for CGA, but it shouldn't be too difficult to do something like this for EGA too?) Thanks again, guys. Check this one out. https://www.vogons.org/viewtopic.php …

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Re: Is it worth it to get an EGA card?

Posted on 2018-09-07, 15:13

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I could be wrong, but I don't believe that an 1084S is going to let you run high resolution 16/64-colour EGA modes...only the 16 colour CGA resolutions. If you want to be able to do 350 line modes, a true EGA display or Multisync will be needed. BTW, some of the last EGA cards had extra resolutions …

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Re: Is it worth it to get an EGA card?

Posted on 2018-09-07, 12:18

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

EGA, CGA, MDA etc are all TTL output, VGA was the first one to introduce analog video signal. Well some CGA cards have analog out as well in the form of modulated TV signal. Cheers. Must've missed that. Those ATi cards certainly aren't the only VGA cards with EGA-out. Pretty much all early VGA …

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Re: Is it worth it to get an EGA card?

Posted on 2018-09-07, 11:07

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Oh, it's TTL? Dang, oh well, my 1084S has got me covered on that then! (I can see a guy playing EGA on a 1084S on Youtube, so it should work, right?) The only card I can see which supports both VGA and EGA seems to be the ATi VIP, which I suppose it's kinda rare - probably cheaper for me to just nab …

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Is it worth it to get an EGA card?

Posted on 2018-09-07, 10:21

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi mates, I was wondering if it's worth for me to get an EGA card for my 486 PC. I'm asking because I've got a MultiSync monitor and I really like when I'm using the monitor on my Amiga and it switches over to 15KHz, as it produces those sexay scanlines everybody loves. 31KHz just doesn't give me …

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Re: Roland MT-32, CM-32L + General MIDI for $50" Building a MIDI box

Posted on 2016-04-09, 09:56

by

by jbenam

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm not understanding.. Do you have more on this statement? http://www.arvydas.co.uk/2013/07/cheap-usb-midi-cable-some-self-assembly-may-be-required/ Long time lurker - finally this project convinced me to register :happy: Has anyone actually confirmed that this fix makes this kind of cable work …

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