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Hi all My Model II has never been able to boot TRSDOS II 4.x with it's original HD card but boots everything else OK. 26-4150 runs OK on the original card but because of a dud HD INIT aborts. Got my paws on a couple of other cards that have factory mods to the boards and they boot TRSDOS II 4.x...

Happy birthday, have a good one.:toast:

Firstly I'd like to thank Matthew Reed for his hard work in writing the original patches for the Models 1,3 and 4. All I have done is butcher his good work to get it running on the Model II. As with anything I do the usual disclaimers apply so if it all goes horribly pear-shaped don't blame...

Rather than hijack Hans01's poll I thought I should do the right thing and start a new thread. A friend recently came across and collection of Model IIs. He definitely found the mother lode. Not sure how he tracked them down. They were used by a business that put them into storage after they...

Bought myself one of those cheap USB-IDE adapters off feepay. About $5.00 without the supply and $10 - $15 with supply and various cables. Armed with the above and some software from http://hddguru.com/ I decided to have a go at backing-up the DOMs I'm using with the IDE adapter on my 4P...

Oh Wow .. Thanks for the quick response.. I have been banging my head against the wall for a few days now.. Very frustrating .... I definitely see similar issues no matter what format I try. With Single density single side 40 tk, it writes a few sectors on track zero then aborts. I can look at...

G'day all After 24 years of faithful service the batteries on my Dallas SmartWatch finally dropped off the perch and rather than try my luck with one from Ebay I decided to have a go at building my own. The slow boat from China has finally made it downunder with the bits, all up cost approx $10...

G'day all, the Astec P/S on my new to me 4P is a bit cantankerous and I'm hoping someone can point me in the right direction. This computer looks like it has spent most of it's life in a box and has done very little work. Problem #1 Power up from cold, 240V input OK, all outputs well below...

I've sent James (pearce_jj) a collection of files that will allow the 4P to boot from the Lo-Tech IDE adapter, a standard Tandy Hard Drive or FreHD, all without using a boot disk. These files can be downloaded from the Lo-Tech site http://www.lo-tech.co.uk/wiki/Lo-tech_TRS-80_IDE_Adapter_rev.2...

Yes - such a thing did exist. I got this computer from a mate on the weekend. It's been collecting dust for over 25 years. A 6809uP with 64K ram. Also comes with 2 * 8" drives, Flex operating system 2 * terminals, 2 * 1200 baud modems and a 9 pin dot matrix printer all for the fantastic price of...