Monthly Archives: August 2015

Upgraded my Amiga 500 (rev 5) to 1mb Chip

Due to a good co worker, I got some 256K x 1 memory chips. After work, and some familie tasks I started my solder iron and upgraded my Amiga to 1Mb Chip memory. Read how I did it here.

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Switches arrive

The switches for my ZX spectrum arrived. first I tough that I received an empty envelop but the 30 switches were there… I want to mount them below the keyboard keys, to replace the faulty membrane.

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She arrived

Today I’m happy. With the mail my new Amiga 500 + arrived. This will be my second Amiga I own. I Started it up and the kickstart 2.0 boot image appeared on the screen. The first tries to boot a floppy … Continue reading

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Amiga with broken chip

When trying out my new Gotek drive, My Amiga did her own thing. When the Selector.ADF was loaded, the selection bar keep on scrolling down. Checking the joystick circuit, I noticed another resistance between pin2 of joystick port 2 than the other … Continue reading

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Near death experience

Yesterday I was busy building a bootselector with a 74ls241, when ready I checked for short circuits, everything looks good. But when powering the Amiga some smoke appeared from her… I double checked the circuit, but couldn’t find any error.. I … Continue reading

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Received the Gotek floppy drive emulator

Couple of days back I received the Gotek floppy drive emulator from Ebay (only $18.10 ). I want to use this drive with my Amiga, but before it can be used, I need to change the firmware so it will … Continue reading

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Picture of the dram chip from futurlec

I received feedback from Futurlec, a picture of one of the 41256 chips. This looks good, so I have will order them, and wait until they arrive.  

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Searching for memory

To upgrade my Amiga 500 (rev 5.) to 1 Mb chip ram I need an A501 extension board or 16 ram chips. As I can’t find an extension board, I started to look for 16 4256 or 41256 fast mode dram … Continue reading

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