Re: Unknown 1541 add-on card

Date: Tue, 25 Jun 2013 22:00:46 +0200
Message-Id: <>
On 2013-06-25, at 21:37, Gerrit Heitsch wrote:

> I did take a look at the TTL support logic. It's the same as on TurboTrans 3.0, the Rossmoeller Product you mentioned. The only difference is that it contains only the RAM, ROM socket and CPU socket, not one for the VIA.
> I'd be very surprised if it wasn't for a 1541, maybe for the newer PCB revision with the single ROM? The one known as the 1541C.

Hmm.. How would it transfer the data then to the computer then? Something's strange here. I start to think that maybe it was some kind of hardware add-on for copying disks, with similar (or copied) design as the "TurboTrans 3". Binding practically the same components can be done the same way but lack of transfer port seems like a no-go for the "TurboTrans". Unless it is incomplete "TurboTrans 1" like DD1, which didn't have VIA socket either.

Basically I see no reason to put that much RAM into a 1541 unless it is a sort of whole disk cache. Either for access/transfer or e.g. low level copy purposes.

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Received on 2013-06-25 20:01:11

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