Re: Tandy Nano - 3 Voice Soundcard ISA - Lowprofile
Posted on 2022-10-20, 00:50
How can you tell a genuine LM386 from a fake?
Smallest Pentium (MMX) motherboard with ISA slots? (ie. larger than PC/104)
Posted on 2022-10-19, 03:37
What's the smallest motherboard form factor that has ISA slots and can support a Pentium (MMX) CPU? The PC/104 standard is fantastic but doesn't have ISA unless you use adapters, etc. I'm wondering what is the smallest PC I can build that can use a real soundcard (ie. Adlib, etc) and has a full set …
Re: DOS driver for RetroWave OPL3
Posted on 2022-10-19, 03:22
OK - Thanks! I'm hoping that we can get this working and then develop alternate boards for YM2151, SN76496, etc.
Re: Possible to output 320x200 for EGA games? (re: doublescanned 640x400)
Posted on 2022-10-19, 00:00
I’m going to try some of the utilities mentioned but I’m confused how any of the tools can force 15 kHz when it sounds like everybody is saying VGA is always line doubled?
Re: Tandy Nano - 3 Voice Soundcard ISA - Lowprofile
Posted on 2022-10-17, 17:11
Can the LM386N-3 be substituted for the LM386N-1? It looks like the LM386N-3 has higher output power (500 mW vs 250 mW). I'm worried that the higher output power might have increased noise/distortion or not be appropriate for line-level output? Also, the SN74LS245N for the Adlib clone is completely …
Possible to use Serdaco's OPL3LPT, TNDLPT and/or CMSLPT on modern PC with DOSBox or emulator?
Posted on 2022-10-17, 15:24
Has anybody been able to use Serdaco's OPL3LPT, TNDLPT and/or CMSLPT on a modern PC with DOSBox or any emulation software? (ie. PCem, 86Box, etc) I believe there are PCI-Expresss parallel port cards but I believe these have issues with emulators?
Re: SBVGM (DOS) VGM Player
Posted on 2022-10-17, 14:48
OK - So we really do need an entire collection of chips to playback everything as accurate possible. 😀 Thanks for the information!
Re: Tiny Vortex86-based DOS gaming PC - weeCee
Posted on 2022-10-17, 14:31
Does anybody have any clever ideas on how to wire the parallel port pins to the weeCee case or face plates? I'm looking to connect serdaco's LPT adapters (OPL3LPT, TNDLPT, and CMSLPT) to the weeCee. The face plates are quite filled but I think there might be room for a DIN connector (10 pins …
Re: SBVGM (DOS) VGM Player
Posted on 2022-10-17, 03:03
How accurate is sound when played on a different chip than recorded with? For example, how accurate is a VGM from a YM2151 played back on a YMF262 ("OPL3") ? The YM2151 is an "FM Operator Type-M" and the YMF262 is "FM Operator Type-L"... I'm not sure what they means, but can these different FM chips …
Best way to play Sierra AGI games with Tandy sound on NON-Tandy PC? (ie. PC speaker + SoundBlaster)
Posted on 2022-10-14, 16:32
The earlier Sierra games (AGI engine) only supported PC speaker and Tandy 3-channel voice but MS-DOS PCs didn't include the Tandy 3-channel voice chip so you are stuck with PC speaker only. I've found two projects that 'convert' (?) the Tandy 3-channel voices into SoundBlaster ("AGISB") or MIDI (" …
Re: Possible to output 320x200 for EGA games? (re: doublescanned 640x400)
Posted on 2022-10-14, 13:12
Thanks for all of the information, but I'm still a little confused... (it does seem to be a very confusing subject!) According to Wikipedia , CGA resolution is 320x200 with a refresh rate of 59.923 Hz. However, VGA uses 320x200 (400 lines) with 70 Hz. I think expect this conversion of games written …
Re: Possible to output 320x200 for EGA games? (re: doublescanned 640x400)
Posted on 2022-10-14, 03:51
Very interesting, thanks! Are there any TSRs to output at the native 70 Hz but at 320x200?
Re: Tiny Vortex86-based DOS gaming PC - weeCee
Posted on 2022-10-13, 20:18
Here's another strange question... (I've also posted over on the Video forum) Is it possible to prevent the output from being doublescanned? For example, lots of games are using 320x200 but the VGA card (?) doublescans the output as 640x400. Normally this isn't an issue but I'm testing a new …
Possible to output 320x200 for EGA games? (re: doublescanned 640x400)
Posted on 2022-10-13, 20:16
Does anybody know if it's possible to output 320x200 (EGA) on a VGA card? If I understand correctly, VGA cards doublescan the output resolution so 320x200 is output as 640x400 (confirmed on my PC monitor and scalers). I'm testing an upscaler (DExx, from the creator of the OSSC) which can upscale to …
Re: Tandy Nano - 3 Voice Soundcard ISA - Lowprofile
Posted on 2022-10-13, 17:40
Thank you so much!!
Re: Tandy Nano - 3 Voice Soundcard ISA - Lowprofile
Posted on 2022-10-13, 15:05
I'm about to order a few PCBs from JLCPCB but does anybody have the actual gerber files? JLCPCB complains it doesn't know the dimensions of the PCB with the files from github. Also, according to this video they mention certain Tandy voice samples not playing correctly? (ie. Space Quest) I'm also …
Re: Tiny Vortex86-based DOS gaming PC - weeCee
Posted on 2022-10-10, 19:41
Does anybody know if there is a way to software emulate MMX instructions? For example, I'd like to run the heaven seven demo but it requires MMX instructions. I'm guessing it's not possible but based on the other crazy things that exist I'm hoping there is a solution?
Re: Tandy Nano - 3 Voice Soundcard ISA - Lowprofile
Posted on 2022-10-09, 21:08
OK - Thanks for the help though!
Re: Tandy Nano - 3 Voice Soundcard ISA - Lowprofile
Posted on 2022-10-09, 21:04
Thanks again so much. Do you have the gerbers for the larger Tandy PCBs with the PC speaker passthrough?
Re: Tandy Nano - 3 Voice Soundcard ISA - Lowprofile
Posted on 2022-10-09, 20:47
Thanks very much! Does this look right? I've just uploaded the ZIP to JLCPCB and this is what it produced: Filename Screen Shot 2022-10-09 at 4.45.16 PM.png File size 412.34 KiB Views 1131 views Also, do you know of any open-source Adlib (OPL3) ISA PCBs I can also build?
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