Intel 8086-2 and P8088 both from '78

Posted on 2022-01-02, 12:00

by

by Adriaan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi All, Maybe I can make someone happy with an original 1978 processor? I found in my old stack two processors and you can get them for free, just pay the post costs. They are an Intel '78 8086-2 and an Intel '78 P8088. Just let me know... Filename processors.jpg File size 485.31 KiB Views 1149 …

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Re: Intel AN430TX motherboard with two Yamaha IC YMF 719-S and YMF704 on board.

Posted on 2022-01-01, 20:21

by

by Adriaan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://youtu.be/id5fTAAdnRg This is an YMF704

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Re: Looking for help wiring up YMF704C

Posted on 2021-12-10, 20:57

by

by Adriaan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://youtu.be/XGPEaS_klgE It's doing its thing!

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Re: Looking for help wiring up YMF704C

Posted on 2021-11-11, 22:46

by

by Adriaan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sure, my hobby is working on a modular synthesizer, design and build most modules by myself (and sometimes I get help from a forum member…) I have made several modules around the YMF262, and I think they sound great. https://youtu.be/-cAcPInczns But I bought an YMF704 and I’d like to build a module …

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Re: Looking for help wiring up YMF704C

Posted on 2021-11-11, 20:48

by

by Adriaan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I discovered why the volume was so low and distorted... It was all because I made a mistake. Looking at the datasheet of the YAC513 I thought to notice that this chip can be used by an YMF721, but it said YMF271.... My mistake, the YMF721 needs an YAC516. So I orderen some and the coming weeks I …

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Re: Looking for help wiring up YMF704C

Posted on 2021-11-11, 06:35

by

by Adriaan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks! I just got in touch with Tiido, and he proved to be of great help. The chip is making sounds, albeid at a very low volume and I can only hear a piano sound (not using the FM part at the moment). So I’m trying to figure out how to increase the volume and change instruments.

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Looking for help wiring up YMF704C

Posted on 2021-11-09, 10:45

by

by Adriaan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I’m trying to wire up an YMF704C but the documentation is very hard if not impossible to come by, others than the very limited datasheet. Is there someone out here who can send me a circuit diagram how to hook up this chip? I have some expertise in using the YMF262 (hard and software) but now …

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Re: Junglevision OPL3 four operator soft/hardware question

Posted on 2021-11-09, 10:33

by

by Adriaan

in PC Emulation

in PC Emulation

https://youtu.be/-cAcPInczns My latest configuration, two YMF262 modules and a WavTrigger (the last one mostly for percussion)

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Re: Need a DIY MIDI FM synth module

Posted on 2021-11-09, 09:27

by

by Adriaan

in Marvin \ Sound

in Marvin \ Sound

https://youtu.be/veBBHDQcPQk Made this midi controlled rack, two YMF262 (6 voice, 4ops) modules and a wavtrigger. Currently I am looking for info about the YMF704 to program it with an Arduino or BluePill.

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Re: Junglevision OPL3 four operator soft/hardware question

Posted on 2021-04-14, 11:17

by

by Adriaan

in PC Emulation

in PC Emulation

Thank you for your kind offer! And sorry for the high pitched notes, I have tinnitus so it's not effecting me ;) The first demo I filmed I used a three ops version and not really polyphonic, but the latest version is 4 ops, 6 voice polyphonic. Took a lot of figuring out and also a lot of help from …

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Re: Junglevision OPL3 four operator soft/hardware question

Posted on 2021-04-14, 07:50

by

by Adriaan

in PC Emulation

in PC Emulation

Made a new version with a bluepill STM32F103C Wasn't possible without the help from this forum, so thank you! https://youtu.be/BU9uqEE7WdY

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Re: Junglevision OPL3 four operator soft/hardware question

Posted on 2017-10-13, 21:23

by

by Adriaan

in PC Emulation

in PC Emulation

After placing that demo on Youtube, I got the next message: Your video "OPL3 instruments on a diy synthesizer, YMF262 controlled by an Arduino", may have content that is owned or licensed by ACUM_CS, but it’s still available on YouTube! In some cases, ads may appear next to it. If this is your …

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Re: Junglevision OPL3 four operator soft/hardware question

Posted on 2017-10-09, 16:39

by

by Adriaan

in PC Emulation

in PC Emulation

https://youtu.be/Pw2PFlAlSuY demo

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Re: Junglevision OPL3 four operator soft/hardware question

Posted on 2017-10-09, 07:48

by

by Adriaan

in PC Emulation

in PC Emulation

I have it workin-ish... The polyphonic setting isn't working yet, but I'll make a demo youtube flic soon...

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Re: Junglevision OPL3 four operand soft/hardware question

Posted on 2017-10-06, 04:41

by

by Adriaan

in PC Emulation

in PC Emulation

thanks, veryhelpful too 😊

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Re: Junglevision OPL3 four operand soft/hardware question

Posted on 2017-10-05, 19:42

by

by Adriaan

in PC Emulation

in PC Emulation

Thank you, I’ll do my best to understand the code you are referring to. I can get my modules programmed, but reading and understanding someone elses code is a different bisquit :lol: edit: especially your last post seemed to be extremely helpful. Now I have a text-file with the hex numbers for the …

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Re: Junglevision OPL3 four operand soft/hardware question

Posted on 2017-10-04, 11:55

by

by Adriaan

in PC Emulation

in PC Emulation

Yes, I have seen the links you provide, and I also downloaded and ran the OPL3Bank Editor, I even tried to mail Vitaly Novichkov with the same question. And maybe my question isn't clearly stated enough, due to English not being my native tongue. What I am looking for is what I found and used and …

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Re: Junglevision OPL3 four operand soft/hardware question

Posted on 2017-10-04, 10:02

by

by Adriaan

in PC Emulation

in PC Emulation

I don't want to test the synth, I want to use it with midi like it does already, but with 4 op sounds (instead of the 2op mode it is using in the Youtube vid) I would like to use the Junglevision 4op format to make sounds so all I need is the format explanation of the Junglevision file so I know …

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Junglevision OPL3 four operator soft/hardware question

Posted on 2017-10-04, 07:01

by

by Adriaan

in PC Emulation

in PC Emulation

Hi All, I am new to this forum, mainly because the question I have just touches the things you discuss at this forum. If the question I have doesn't fit this particular part of the forum, admins/moderators please place it in the right forum. I am working on a module for my modular synthesizer ( not …

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