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Recently Played/Bought/Messed with
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DXZeff
Posted 2019-08-06 10:13 PM (#1658 - in reply to #1657)
Subject: Re: Recently Played/Bought/Messed with



Pentium II

Posts: 457
1001001001002525
Location: Hull, UK
It should be practically indistinguishable from the original OPL2 AdLib card, interested to know where the noise floor sits though, doubt it's gonna be great as the YM and YAC chips seem to be noisy on their own in my experience.
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Brostenen
Posted 2019-08-06 10:21 PM (#1659 - in reply to #1658)
Subject: Re: Recently Played/Bought/Messed with



Pentium II

Posts: 379
100100100252525
DXZeff - 2019-08-07 12:13 AM

It should be practically indistinguishable from the original OPL2 AdLib card, interested to know where the noise floor sits though, doubt it's gonna be great as the YM and YAC chips seem to be noisy on their own in my experience.


There are another alternative OPL2/Adlib clone, sold from UK. It is a kit/diy product. here

As for me. I have been doing some metal work on the case that will be the Amiga500 boards new home. It really need some touching up, yet it is the first time, that I use one of those rotary cutting tools. It is a dremel type of tool, made by skil.
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Brostenen
Posted 2019-08-10 3:47 PM (#1660 - in reply to #1659)
Subject: Re: Recently Played/Bought/Messed with



Pentium II

Posts: 379
100100100252525
My case convertion is almost done. In order to make it a fully functional machine, then I need to find a way to hook up a keyboard. Then it will be as functional as a stock Amiga500. After that, I need to make some upgrades to the machine. Like scandoubler for VGA output, combined 8mb Ram and IDE board for better useability and IDE devices. I need to get a kickstart switcher installed and finally I need to install a boot selector, in order to be able to boot from external drive.

Well...
Yesterday I had this baby fired up for the first time. I watched demo's and played games that did not require a keyboard. And had a six pack of beer, because of the work that I have put into this.

How did I do?





(500D-01.jpg)



(500D-02.jpg)



Attachments
----------------
Attachments 500D-01.jpg (349KB - 6 downloads)
Attachments 500D-02.jpg (334KB - 6 downloads)
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Rawit
Posted 2019-08-12 10:34 AM (#1661 - in reply to #1660)
Subject: Re: Recently Played/Bought/Messed with



Fujitsu 186

Posts: 9
0
That looks very nice! I assume you cut out the port area? That material looks thicker than on most cases, must have been a pain. Did the offsets of the screws work out for you?

Edited by Rawit 2019-08-12 11:51 AM
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Brostenen
Posted 2019-08-12 1:21 PM (#1662 - in reply to #1661)
Subject: Re: Recently Played/Bought/Messed with



Pentium II

Posts: 379
100100100252525
Rawit - 2019-08-12 12:34 PM

That looks very nice! I assume you cut out the port area? That material looks thicker than on most cases, must have been a pain. Did the offsets of the screws work out for you?


Thanks.
The case was actually hard to cut. I removed a strip under the PSU thus making the horisontal hole longer. The I used a piece of cardboard, because the board needed to be raised a bit. Cut the bottom RF shield in order to make it fit the case inside. Poking holes for the brass standoff's. Grinded the screw part of the brass standoff's and glued the standoff's and the cardboard to the case, using some epoxy two component glue. That way I had something that I am able to fasten the board on, using normal PC screws.

So the shiny metal you see at the ports, are actually the original RF shield. The case is actually an old 486 case from a dead Unisys machine. It originally came with stuff like a DX-33, onboard S3-805, VLB and SCSI. The faceplate of the case was badly yellowed, yet nothing that a melanin spunge can not take care of. Now it is only aprox 10 percent yellow, compared to before. No retrobright, only this spunge that I suspect is the same as the magic erasor spunge that you will find in America.

I still need to find a keyboard solution, find an internal scandoubler and get an internal IDE controller. However, I have upgraded it with a kickstart switcher. It is a 4-way switcher, originally made for Roland gear. As of now I have Kick 1.2+1.3+2.0(37.350) original roms installed on that switcher, and the switching turn-knob are mounted on the backside on a slot-bracket.
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Brostenen
Posted 2019-08-12 11:05 PM (#1663 - in reply to #1662)
Subject: Re: Recently Played/Bought/Messed with



Pentium II

Posts: 379
100100100252525
My project is now on my blog....
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DXZeff
Posted 2019-08-17 5:15 PM (#1664 - in reply to #1663)
Subject: Re: Recently Played/Bought/Messed with



Pentium II

Posts: 457
1001001001002525
Location: Hull, UK
This is what that AdLib clone sounds like;


It uses pretty much identical components to the genuine card, so sounds the same. The noise floor is surprisingly low, probably as good as you can get with Yamaha's crappy chips.
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