Re: Reu + Re: 1581

From: Sami Rautiainen (
Date: 1998-06-24 07:26:20

On Mon, 22 Jun 98 20:09:11 GMT, wrote:

>Hallo allemaal,
>I received a pricelist of a company in the USA, "The Vintage Computer" in 
>El Cajon, Calefornia. They sell REUs (1700) for $25.- which I consider not 
>expensive. Who knows more about this firm (
>>> 1) Who can give me some more specifications about the 8520 in this device?
>> At least the pinout is same. I heard from friend about direct replacing 8520
>> by 6526B. If that true, then go to into pub/cbm/documents/chips
>> dir and DL the and I'm working on HTML version of 6522
>> data sheet, but only the raw text and tables are done. The HTML will be full
>> size with timing diagrams.
>Thanks for all the answers. Is this 8520 available for sale? If so, it 
>should be possible to build one your self as all the other parts are 
>available, including the drive. If not, can it be replaced by the 6526A? I 
>think/fear the answer is NO just because of those registers....
>> Hey! Where you moved your homepage?
>No, they throwed it away as part of merging operation. I haven't found the 
>time yet to set up the new one. Even worse, I'm thinking about having none 
>at all for three reasons:
>1- It cost me a lot of time to answer all the mails I receive in response 
>to it. Most of them don't even concern my projects and documents :-(
>2- Maintanance costs a lot of time
>3- If everything is allright I soon get an emailaddress and a connection 
>to Internet just for free from my computerclub. If this works out fine, 
>why pay a lot of money if you can have it for free.
>The problem is of course that there are still people around interested in 
>my documents, projects and in what I'm doing. All of them are free so if 
>someone of you is interested, I'll send him the DOC (HTML). You may use 
>how you like it, even use it for your own documents.
>Hallo Ethan,
>> I recently aquired an IDE interface for my C64 (IDE64).  It seems to
>> work fine, but there appears to be a problem with the built-in speed
>> loader in an SX-64.  I know the kernel ROMs are different, the question
>> here is, does anyone know the differences bettween a real 1541 and the
>> drive embedded in the SX?  I haven't yet torn it open to look because it's
>> a pain in the ass.  If someone knows off the top of their head, great;
>> otherwise, I'm going to have to tear my SX open.
>As far as I know the 1541 in the SX is the same as a normal one. I rather 
>would say that, if any trouble at all, the cause is in the ROMs of the SX 
>as they do differ from the normal C64s.
>> As for the IDE64, it's pretty slick.  The IDE part worked the first time
>> I plugged it in.  I'm using an HP "Kittyhawk" 1.3" 20Mb IDE drive with it.
>So if I understand you well, this is a interface to connect an IDE-drive to a 
>C64. What kind of hardware does it use? Can it be re-engineered? Just 
>curiousity :-)
>> The drive is a fraction of the size of the interface!  This drive is smaller
>> than most cell-phone batteries.  
>??? I don't what kind of batteries you use but even a 2.5 inch HD is 
>bigger then a penlight. So this puzzles me. 
>(The problem with foreign languages is that you cannot see if someone is 
>making a joke)
>About the IDE-interface. Someone of you mentioned one some weeks ago. This 
>is a interface used by a CoCo (a kind of Tandy-computer??? sorry, I forgot 
>(no joke)) I also have one for a XT-PC which looks alike. Two weeks ago I 
>bought one and it only containd one PAL so there is a good change to 
>re-engineer this one too if necesary.
>Groetjes, Ruud
>This message was sent through the cbm-hackers mailing list.
>To unsubscribe: echo unsubscribe | mail

   Sami Rautiainen                       .. out of sight - out of mind

This message was sent through the cbm-hackers mailing list.
To unsubscribe: echo unsubscribe | mail

Archive generated by hypermail 2.1.1.