VOGONS


Reply 40 of 49, by Mu0n

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Update, I was successful at replicating Adrian Black's success on the Mac Classic and then repeated the process on the even easier route for a Macintosh Plus.
To top it off, I got a powered, cheap HDMI splitter and a HDMI capture USB stick, so I can stream truly olden gems (think 1984-1985) on the internet! Some of these games run in emulators, but not with 100% accurate sound (a prime example of this is Archon which does a lot of wizardry with direct programming of the sound buffer, I suspect, as opposed to just playing a snd resource like was standard a few years later).

I started my own channel to share these black and white games and more here, 1Bit Fever Dreams: https://www.youtube.com/channel/UC9YYXWX1SxBhh1YB-feIPPw.

Here is the setup shown in action in a YT short: https://youtube.com/shorts/DwQafL_6ghA?feature=share

Last edited by Mu0n on 2022-04-25, 09:55. Edited 1 time in total.

1Bit Fever Dreams: https://www.youtube.com/channel/UC9YYXWX1SxBhh1YB-feIPPw
DOS Fever Dreams: https://www.youtube.com/channel/UCIUn0Dp6PM8DBTF-5g0nvcw

Reply 41 of 49, by matze79

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Well.. i got the Picture issue fixed.

But my Picture is rolling vertical.
Any Ideas ?

The Card is a ATI CGA/HGC Card from a Commodore PC.

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https://dosreloaded.de - The German Retro DOS PC Community
https://www.retroianer.de - under constructing since ever

Co2 - for a endless Summer

Reply 42 of 49, by weedeewee

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matze79, what did you do to fix the picture ?

Right to repair is fundamental. You own it, you're allowed to fix it.
How To Ask Questions The Smart Way
Do not ask Why !

Reply 43 of 49, by matze79

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Made new Cable, and soldered new Xilinx

Somehow it always says no Sync.

https://dosreloaded.de - The German Retro DOS PC Community
https://www.retroianer.de - under constructing since ever

Co2 - for a endless Summer

Reply 44 of 49, by weedeewee

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rolling screen would indicate some vsync issue.

Right to repair is fundamental. You own it, you're allowed to fix it.
How To Ask Questions The Smart Way
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Reply 45 of 49, by matze79

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Indeed, strange Output.

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If i set the Card to HGC and hockup HGC Monitor the Picture is also rolling.

Composite is fine on TV Set.

https://dosreloaded.de - The German Retro DOS PC Community
https://www.retroianer.de - under constructing since ever

Co2 - for a endless Summer

Reply 46 of 49, by weedeewee

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very odd indeed.
If i read the graph correctly, it would imply you're getting pulses of around 250~333 ns ( 4 - 3 MHz) on your vsync. That's way beyond spec for a simple HGC adapter/monitor 😏

Right to repair is fundamental. You own it, you're allowed to fix it.
How To Ask Questions The Smart Way
Do not ask Why !

Reply 47 of 49, by matze79

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Genoa EGA works fine 👍

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https://www.retroianer.de - under constructing since ever

Co2 - for a endless Summer

Reply 48 of 49, by dmuntz

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Is anyone currently selling these fully/mostly assembled? I've recently resurrected 3 IBM 5150s with various video cards (ATI EGA Wonder 800+, IBM CGA, Paradise CGA, and a couple of mystery monochrome cards), and will be working on a Tandy 4000 next. The old monitors have seen better days, so I'm looking for a relatively inexpensive way to use the many flat-screens hiding around the house with these machines. TIA.

Reply 49 of 49, by KVM Nerd

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dmuntz wrote on 2022-05-10, 10:53:

Is anyone currently selling these fully/mostly assembled? I've recently resurrected 3 IBM 5150s with various video cards (ATI EGA Wonder 800+, IBM CGA, Paradise CGA, and a couple of mystery monochrome cards), and will be working on a Tandy 4000 next. The old monitors have seen better days, so I'm looking for a relatively inexpensive way to use the many flat-screens hiding around the house with these machines. TIA.

Look for seller "marminsky" on eBay, he has them in stock every once in a while, or maybe when you ask him. Item is called "Video Converter RGBI to HDMI/DVI - IBM 5150 5160 XT 5170 (MDA/CGA/EGA) to HDMI" in his list of items, at least mine was.

EDIT: Found this link on the project homepage which lists some additional sellers: https://github.com/IanSB/RGBtoHDMI/wiki/Assem … boards-for-sale

Why not hook it up to a KVM switch?