[sdiy] Some old IC's

[Rönnberg Niklas]

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

Best regards, and happy new year!

/Niklas