Re: Upgrade 2040/3040 DOS 1 floppy drive to DOS 2?

From: Wolfgang Moser <womo_at_news.trikaliotis.net>
Date: Sat, 31 Jul 2010 20:02:24 +0200
Message-ID: <4C546530.4040306@news.trikaliotis.net>
Hello Anders, Martin,

Anders Carlsson schrieb:
> Martin Hoffmann-Vetter wrote:
> 
>> have a look at the 8250LP [..] a daughterboard for the RIOT
> 
> Nice point. I still have one functional 8250LP. While I won't sacrifice it
> for a 3040, I could open it up and look at the daughterboard in question,
> compared to the schematics.

are the daughterboards the same as used in SFD1001 drives?

In 2008 and 2009 I tried to acquire a SFD1001. After some months my eBay
search filters were adjusted that well that I was able to get in contact
to some more SFD1001s for cheap. All of them are defective (most
probably) some are in a really crappy state. Further I got some
replacement boards from "the" huge german garage sale of old CBM
equipment in end of 2008 to end of 2009. Since I can only rebuild as
much drives as I get SFD1001 mechanisms repaired (a project for the next
10 years ;-), there will surely remain some SFD1001 boards.

To make a long story short: If you need a doughterboard without RIOT and
ROM and can't find one in your neighbourhood, then contact me and I'll
send you one.


Further I bought some  AT28C256  EEPROMs recently. Nothing a standard
C64 EPROM burner can handle, but every cheap chinese programmer should
be able to erase and program these (my Top-2004 does it). I may also
provide you with one or two of them.


Womo


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Received on 2010-07-31 19:00:05

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