SV: [sdiy] Some old IC's

[Rönnberg Niklas]

As I understand (thanks Yves!) the second IC is a Yamaha custom IC,
IG02611, and there are another custom IC in the VCA section IG02592. If
anyone has information about these, please please please send it to me!

And yes, this is pre DX-7, about 1980, and it's Yamaha's toy-instrument
PS-3.

Here's a sample:
http://www.itn.liu.se/~nikro/synth/jultest2.mp3

Regards

/Niklas

-----Ursprungligt meddelande-----
Från: Senso [mailto:senso at dds.nl] 
Skickat: den 31 december 2004 00:29
Till: synth-diy at dropmix.xs4all.nl
Ämne: Re: [sdiy] Some old IC's


>Hi,
>
>I'm looking for datasheets or at least pin configs on some old (?) 
>opamps (?). The first one is JRC 1468, at least I think this is the 
>name. The IC (8 pins) has the following text on it: 4558DV JRC 1468.

That's a JRC 4558DV, a common dual op amp, also known as NJM4558DV. 
I'm sure Google will come up with a datasheet.

>The second IC is a
>14 pin IC (quad opamp?) with the following text: G026 (it could also be 
>6026), before this there are a straight vertical line, and there are 
>two similar lines after the text, something like this |G026|| and then 
>on another row |10. Do you have any ideas? I can't find any 
>information... :-(

Is that all it says? Nothing else?

>And when I allready has bothered you, do you have any info of the 
>following IC, Yamaha YM1104C (probably an Yamaha processor?)?

Never heard of that one, but judging by the number, it's a pre-DX7 chip.

Senso



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