npub13levfmuj9uu5gy4mhh0tg5nkujqujkyky8220rd0dkwpm4p950eqss6saf (npub13le…6saf) npub19a8tdmlwgk7jhrwzttrqdtcfe8t27lzh90umlwmrl3xtdfvtsnwsw7lsy2 (npub19a8…lsy2) I'm also planning to build one (sorry, no extra RAM board – though I have a complete Lisa 2 here). Where did you order the boards from, I'm thinking of JLCPCB?
I also started looking for parts. The 6504 can be replaced by a 6502 in an adapter socket, the I/O code doesn't use undef'd opcodes. W65C02/W65C22N are available from Mouser. The W65C22N is bug-compatible to the original 6522 parts (the W65C22_S_ is not!). The 2148 SRAMs might be difficult to find.
Michael Engel /
npub1qr…lh5my
2023-08-15 19:04:35
in reply to nevent1q…zllw
Author Public Key
npub1qr3r7e8stpe05hlxk4uyxa0vajqlmy6gge4acle5hdl5n0qjqwfqjlh5myPublished at
2023-08-15 19:04:35Event JSON
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"created_at": 1692126275,
"kind": 1,
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"content": "nostr:npub13levfmuj9uu5gy4mhh0tg5nkujqujkyky8220rd0dkwpm4p950eqss6saf nostr:npub19a8tdmlwgk7jhrwzttrqdtcfe8t27lzh90umlwmrl3xtdfvtsnwsw7lsy2 I'm also planning to build one (sorry, no extra RAM board – though I have a complete Lisa 2 here). Where did you order the boards from, I'm thinking of JLCPCB? \n\nI also started looking for parts. The 6504 can be replaced by a 6502 in an adapter socket, the I/O code doesn't use undef'd opcodes. W65C02/W65C22N are available from Mouser. The W65C22N is bug-compatible to the original 6522 parts (the W65C22_S_ is not!). The 2148 SRAMs might be difficult to find.",
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