What are the two chips other than the YMF pair? \ VOGONS

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What are the two chips other than the YMF pair?

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First post, by Kahenraz

Posted on 2018-08-31, 05:43

Kahenraz Offline

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What are the two socketed chips on the right of this thing?

https://www.youtube.com/watch?v=1x-gV9Wpimc

Reply 1 of 3, by keropi

Posted on 2018-08-31, 06:54

keropi Offline

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sound amps

🎵 🎧 ⏳ ⚡ MK1869, PCMIDI MPU , OrpheusII , Action Rewind , Megacard and 🎶GoldLib soundcard website

Reply 2 of 3, by Kahenraz

Posted on 2018-08-31, 07:23

Kahenraz Offline

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Posts: 4517
Joined: 2004-01-22, 04:57

Would you happen to know the chip number for those? And why are there two? Do they go in series?

Reply 3 of 3, by keropi

Posted on 2018-08-31, 11:00

keropi Offline

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Location: Greece

They are 2 channel amps, see NJM072D datasheet here: https://www.njr.com/semicon/products/NJM072.html
Chances are the guy is using all 4 channels of the OPL3 just like that texelec opl3 card

🎵 🎧 ⏳ ⚡ MK1869, PCMIDI MPU , OrpheusII , Action Rewind , Megacard and 🎶GoldLib soundcard website

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