Re: FD5500

From: Gerrit Heitsch <>
Date: Sat, 4 Jun 2016 20:31:38 +0200
Message-ID: <>
On 06/04/2016 07:53 PM, wrote:
> On Saturday 04 June 2016, 18:50:05 Gerrit Heitsch <>
> wrote:
>> On 06/03/2016 02:10 PM, wrote:
>>> I stumbled recently across a - kind of - interesting drive:
>>> Admittedly I haven't seen one before. The quality of manufacturing is
>>> surprisingly good. It reports "CBM DOS V2.6 1541" although as
>>> says ;-) it surely isn't CBM DOS as found in 1541.
>> It might be just a copy... The Oceanic 168 I have use the same ROM as
>> the 1541-II, it just doesn't have a MOS-Logo on it. I use an original
>> 1541-II ROM in one of them now.
>> The OC168 doesn't use the gate array, it's all TTL, very likely the same
>> circuit or a derivative from the one used on the 1541 with the long board.
> didnt those have the address and/or datalines swapped around to work around
> some legalese?

I think that was the OC-118N, not the OC-168N. The latter has a single 
16 KB ROM that even carries the part number of the 1514-II ROM. The ROM 
is not a ROM but a OTP-EPROM though. One of them started loosing data, 
that's why I replaced it with an original 1541-II ROM.


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Received on 2016-06-04 19:00:02

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