Search found 149 matches
- Tue Sep 26, 2023 7:44 pm
- Forum: Uploads
- Topic: Home Computer Museum Helmond Dragon 64 archived disks
- Replies: 2
- Views: 13698
Re: Home Computer Museum Helmond Dragon 64 archived disks
A little blurb to accompany this archive. Very interesting set of disks... the Dragon 64 in question was obviously heavily used under DragonDOS, OS9 and Flex for document preparation, graphics and entertainment. The twin DragonData disk drive unit had two replacement 80 track double sided drives fit...
- Tue Sep 26, 2023 7:26 pm
- Forum: Uploads
- Topic: Home Computer Museum Helmond Dragon 64 archived disks
- Replies: 2
- Views: 13698
Home Computer Museum Helmond Dragon 64 archived disks
Results of a day and a bit of archiving of the most interesting of the large number of Dragon 64 floppy disks in the Museum's collection.
Thanks to Bart van den Akker for the opportunity to capture these! A visit to the Museum is very much recommended if you get the chance.
Thanks to Bart van den Akker for the opportunity to capture these! A visit to the Museum is very much recommended if you get the chance.
- Tue Sep 26, 2023 1:34 pm
- Forum: Uploads
- Topic: OS9 User Group Disks
- Replies: 2
- Views: 16176
Re: OS9 User Group Disks
Nice! Will have some fun looking through those.
Though VDK, argh... The toolshed package os9 utility which allows exploring, extracting files, changing RBF disk images from windows or linux only likes headerless! So headerless .DSK, or .IMG or .OS9 is much more convenient!
Though VDK, argh... The toolshed package os9 utility which allows exploring, extracting files, changing RBF disk images from windows or linux only likes headerless! So headerless .DSK, or .IMG or .OS9 is much more convenient!
- Tue Jun 06, 2023 12:06 pm
- Forum: Dragon General
- Topic: Wessex Wyvern expansion box?
- Replies: 4
- Views: 8003
Re: Wessex Wyvern expansion box?
More interesting is that EliteCalc works on the Dragon! That's a CoCo cartridge I thought?
Actually no - scratch that. It seems that Microcare 'Elite Calc' did have a Cartridge version.
Actually no - scratch that. It seems that Microcare 'Elite Calc' did have a Cartridge version.
- Mon Jun 05, 2023 4:34 pm
- Forum: Dragon Hardware
- Topic: Dragon disk drive RPM checker
- Replies: 0
- Views: 66251
Dragon disk drive RPM checker
Here's a Dragon-ised version of Robert Gault's disk drive RPM checker that I posted on FB some time ago. Use is obvious... load using a working drive, Gotek or drivewire, and then run with the drive for testing attached and a disk inserted. Note... Dragons 32s have two different possible main crysta...
- Mon May 22, 2023 7:14 pm
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46562
Re: Dragon 64 motherboard replacement
I'd be suspicious of the 3.3v signal level output-ness of the CoCoSDC. The CoCoSDC design doesn't have a dedicated voltage regulator to bring supply down to 3.3V from the Dragon's 5V. It uses a regulator on the SD card reader module. Try measuring the 5V line on the CoCoSDC and the supposed 3.3V out...
- Mon May 15, 2023 11:18 am
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46562
Re: Dragon 64 motherboard replacement
Yeah, if you are getting strange CoCoSDC behaviour, I'd always look as a first option at obtaining and fitting a pullup board.
- Sun May 14, 2023 4:30 pm
- Forum: Dragon General
- Topic: DRAM data retention time
- Replies: 20
- Views: 54388
Re: DRAM data retention time
Aha. Via Dragon Update and The Rainbow Feb '86... there is some OS9 driver info available! Dale L. Puckett's KISSable OS9 column published an original banker board OS9 ramdisk drive and source code by William Good. The driver uses a helper program which modifies the driver module loading to ensure i...
- Thu May 11, 2023 8:23 pm
- Forum: Uploads
- Topic: Some missing Dragon magazine scans
- Replies: 4
- Views: 9993
Re: Some missing Dragon magazine scans
Final few bits and pieces - dragon gazettes, a world and an update
- Thu May 11, 2023 8:21 pm
- Forum: Uploads
- Topic: Some missing Dragon magazine scans
- Replies: 4
- Views: 9993
Re: Some missing Dragon magazine scans
And more 6809 user