Re: Drean C64 detailed info

From: groepaz_at_gmx.net
Date: Mon, 03 Feb 2020 21:29:42 +0100
Message-ID: <2089103.t9SDvczpPo_at_rakete>
Am Montag, 3. Februar 2020, 21:27:36 CET schrieb silverdr_at_wfmh.org.pl:
> > On 2020-02-03, at 21:21, André Fachat <afachat_at_gmx.de> wrote:
> >>> Do we have exact specs/schematics of Drean 64 available somewhere? Quick
> >>> check of Funet/Zimmers didn't reveal anything…
> >> 
> >> Nobody, nothing? Other than a different VIC…
> > 
> > The secret weapons of Commodore page states they used imported original
> > CBM
> > parts (boards, chips) and only made cases and labels.
> > 
> > But I guess you knew that already
> 
> Surely they didn't produce the boards, chips, etc. but they had to modify
> them. Replacing the VIC is one thing, but what about any other changes. For
> example that VIC is said to have both high cycle count per rasterline AND
> high count of rasterlines, which suggests possibly a different clocking
> regime? Modulators?

i'd also expect adjustments in the clock generator circuit (other crystal?) 
and a different RF modulator. the rest can stay as is, i think :)

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Received on 2020-05-30 00:46:16

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