First post, by Vipersan
So ..I'm hoping someone perhaps has an old NTSC Apple ii scrap logic board lying around ..
bit of a longshot but worth an ask ?
Basically ..I have an Apple ][ Europlus fully working with a homebrew keyboard ..
which I would also like to replace but I have more chance of becoming king of England I guess.
The Europlus only produces monochrome vga out via RCA natively..but Woz designed the US version to use colour arifacting Chroma ...so in theory the Europlus version could theoretically be retrofitted to give colour if I reversed the Euromods.
This I have done already ...but in order to produce colour I would need a multistandard monitor that accepts ntsc..
Which luckilly I do have.
BUT in order to fully revert to NTSC I need to change the clock frequency ..
A simple mod requiring the Crystal be changed ..and some jumpers fitted elsewhere on the logic board.
Specifically a 14.31818 MHZ series resonant crystal ..
Ebay isn't helping here and I do know that a crystal borrowed from an NTSC Apple ][e will work just fine..
I know cos I borrowed the one from my Apple IIe ..
See attached photo..
Id like to have both my II europlus and my IIe working so need another crystal ..
Can anyone help me ?