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Old 18 May 2011, 14:54   #1
Schoenfeld
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A604: New chipmem expansion - and more!

After the A603 was sold out, I got a lot of requests, because people wanted to add a flickerfixer to their A600. However, many people expressed their wish to leave the floppy drive installed, and the more experienced users did complex modifications to accomplish that.

Time for me to re-think the concept of the A603. Here's what I did:

- make it smaller! Only a single memory chip and a single logic chip
- flip it around: Component side is "up" now
- re-position the Indivision socket, tilt it in a way that it fits under the keyboard
- add a second clockport

Clockports can't be arranged in a way that they can take A1200 hardware directly; only products with cables are supported (Delfina, Silversurfer limited edition, Catweasel MK2, Subway). However, those cables also take up space, and with the constrained space inside of an A600, you really need to think about where to put all the cables and boards.

That's why the A604 comes with a small riser card, which is mounted using the floppy drive's screw. The Subway can be plugged into that riser card directly, without a cable. The second clockport even reaches 60% more transfer speed, which translates either to higher USB transfer rates, or to lower CPU load.

Tha A604 is a very tight fit. We're still busy building custom tools to achieve extremely low assembly tolerances. With the component side up, the board is so low on the trapdoor that special cut-outs had to be made.

The recommended retail price is 49,90 EUR incl. VAT. The A604 will be available in the second half of june 2011 from all known resellers. I encourage everyone to shop locally!

Jens
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Old 18 May 2011, 15:18   #2
mfilos
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Jens you never seem to amaze me!!!
That is an awesome product and will definitely buy despite having 2x603s already

Thanks for your continuous work!
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Old 18 May 2011, 15:19   #3
Akira
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Awesome!!!
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Old 18 May 2011, 15:24   #4
Arnie
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Jens you never seem to amaze me!!!
LOL Jens you never cease to amaze me!!!
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Old 18 May 2011, 15:48   #5
kriz
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You rock Jens!!! WOW!!
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Old 18 May 2011, 15:52   #6
fitzsteve
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Great work, nice design
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Old 18 May 2011, 16:16   #7
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Nice Work .

I for one couldn't bare to part with the floppy, it may be noisy, annoyingly slow, but its part of the original machine and deserves to be left there, just for sentimental reasons alone lol
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Old 18 May 2011, 17:05   #8
Peter
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Incredible re-working of an already superb product!

Great work - keep it up!... Please!
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Old 18 May 2011, 17:33   #9
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Top stuff. Anyone want a slightly used A603?
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Old 18 May 2011, 17:39   #10
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Cool, all I need now is an a600
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Old 18 May 2011, 18:01   #11
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Top stuff. Anyone want a slightly used A603?

HeHe, You probably had a much better chance of selling it yesterday
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Old 18 May 2011, 18:01   #12
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Great piece of hardware. Jens always improving the design!
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Old 18 May 2011, 18:46   #13
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Nice, will get one for my ACA 630 project!
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Old 18 May 2011, 19:08   #14
mfletcher
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Top stuff. Anyone want a slightly used A603?
Lol, me too! Damm you Jens *shakes fist*
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Old 18 May 2011, 19:21   #15
Amigaman
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This seems quite an elegant solution to the problem of space..

Well done Jens, once again. No wonder you have been so quiet recently. I like it when you surprise us with good news.
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Old 18 May 2011, 19:45   #16
DonAmiga
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Great Stuff, shall be looking to get one of these and Indivision ECS now that I can keep my floppy drive. Oh and the shopping list is getting bigger as I want a Chameleon for my C64 (out today) looks like I'll need to get the overtime in
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Old 19 May 2011, 20:54   #17
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Thanks for having reconsidered the Indivision situation. I am so happy
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Old 19 May 2011, 21:17   #18
kipper2k
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Great Stuff, shall be looking to get one of these and Indivision ECS now that I can keep my floppy drive. Oh and the shopping list is getting bigger as I want a Chameleon for my C64 (out today) looks like I'll need to get the overtime in
No joystick capability in standalone mode for the chameleon
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Old 19 May 2011, 21:52   #19
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No joystick capability in standalone mode for the chameleon
I was going to use it with my C64 you'll just need to get a C64
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Old 19 May 2011, 21:56   #20
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I was going to use it with my C64 you'll just need to get a C64
I'll probably still get chameleon... i have a box of C64's downstairs
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