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What is the purpose of the TAPE jumper and the 6 pin socket on the upper right corner of the DOS controller?

admin wrote:As for the Dragon Plus board - still a very rare thing - but I know of 5 now. Mine is on it way back from Prime where he used it to repair another one. OS9 and FLEX software that supports the board is in the archive...

Do you have the schematics for the Dragon Plus?

Welcome back to the Dragon community :) If your Dragon Plus board is working, this may be the only known living survivor of this endangered specie . Please post some pictures of it when you have a chance. I guess I'll have to dig out the Dragon again and do some coding now that I'm retired. I have a...

You can use practicaly any 28 pin EPROM both for the Dragon ROMS and for DragonDOS. For the Dragon ROMS (which are 16K) you must use a 27C128 or higher, and for DragonDOS (which is only 8K) a 27C64 or higher. In the name of an EPROM, the "C" after the 27 indicates that it is a CMOS EPROM. These requ...

I've run out of 27128's but I have a couple 27256's at hand. Can I use them for the Dragon? Yes. Although the Dragon will only be able to access the last 16K of the EPROM. The easiest way is to edit the ROM image using a hex editor, select all, copy and paste to create an image at the required size...

Drivewire is an award winning open source connectivity solution for the Tandy Color Computer/Dragon. This post includes instruction to build your own adapter cable for the Dragon 32/64. You can also buy tormod's ready made Drivewire adapter . DriveWire with the Dragon Drivewire Adapter and HDB-DOS f...

Hi Steve, Regarding your previous question, I'm not an expert on this issue, but I believe that any EPROM rated at 200ms or faster would work fine. The AM27C128 150ms will surely be fine. Ken, The original EPROMs in my Dragon 64 are HN4827128G's. Is this programmer capable of programming the HN68271...

I'm using Windows XP Pro, SP3. Does it really need the parallel port IO driver from-- http://www.driverlinx.com/ftp/unsupported/port95nt.exe ( no longer available via that link ) mentioned in the Quick Start Guide? No. If you're using XP Pro and your PC has a parallel port you don't need any driver...

This power supply should be fine.
Here are the user's manuals for this programmer.
http://www.shrubbery.net/~heas/willem/w ... om-Eng.pdf
http://www.busfoto-nederland.eu/kwong/d ... lemQSG.pdf

zephyr wrote:What is the make/model of your UV EPROM eraser?

The list above is exactly what I have. There may be other more advanced solutions, but this is what I've been using now for over 5 years and it works!
The UV eraser is simply a box with a UV light bulb inside. Very low-tech...