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General Category => CPCWiki Discussion => Topic started by: arnoldemu on 13:00, 06 June 15

Title: ram expansion for 464/664
Post by: arnoldemu on 13:00, 06 June 15
Looking through some old cds I found the attached image.

Is this documented on the wiki?

it appears to be a PAL16L8 alternative for 464/664
Title: Re: ram expansion for 464/664
Post by: TotO on 13:07, 06 June 15
I have never seen it.
Look to be a PAL circuit for 464 that required to hack the computer. Sad to have not used it 30 years ago...
Title: Re: ram expansion for 464/664
Post by: Bryce on 13:21, 06 June 15
Nope, never seen that either.

Bryce.
Title: Re: ram expansion for 464/664
Post by: Gryzor on 16:13, 07 June 15
What does it do then? Shall we up it? :)
Title: Re: ram expansion for 464/664
Post by: Poliander on 16:51, 07 June 15
Here (ftp://ftp.cpcszene.de/pub/Computer/Amstrad_CPC/CPC-Magazine/Deutschland/Mumpitz/Mumpitz_052.pdf) I found the origin of this circuit diagram, a German hobbyists magazine from '99
Title: Re: ram expansion for 464/664
Post by: Gryzor on 16:53, 07 June 15
Attachment missing?
Title: Re: ram expansion for 464/664
Post by: Poliander on 16:56, 07 June 15
Here you'll find the link  :D

[attach=2]

(Was too big to upload, sorry)
Title: Re: ram expansion for 464/664
Post by: Gryzor on 17:16, 07 June 15
Ahhh I was looking at my laptop's screen at an angle and the link didn't stand out :D
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