So I’ve gone back to work after an extended holiday, so output is likely to slow for a bit. However, I’m still doing retro “stuff” so I thought I’d share some of it. One of the coolest projects I completed on the weekend was building an MT32Pi Hat. This consists of a Raspberry Pi runningContinue reading “Posting will slow for a while”
Tag Archives: microbee
Bits and Bobs
Well, here we are again. Amiga 2000 I built up the -5v rail for the A2000 and fully reassembled it. Unfortunately the A2000 is presenting with a black screen. No synch or other signs of life. Not the end of the world, but it does mean it’s on hold until my new Oscilloscope arrives. MacContinue reading “Bits and Bobs”
Upgrades, Problems, Parts
It’s been an exciting few weeks. Archimedes The Archimedes continues to confound me. I finally got a replacement 1772, plugged it in and… No change! At this point I have swapped out all the chips that feed the floppy disk. If you look at the schematics, I have socketed and tested IC29, IC30, IC38, ICContinue reading “Upgrades, Problems, Parts”
Repairing Microbee No3 Keyboard
The third Microbee was now nominally “working” insomuch as it was booting reliably to the command prompt. Only thing is, I couldn’t test anything further without a keyboard. The keyboard was partially working, and having removed the keycaps I could see a mix of 3 different keyswitches. White stemmed with a horizontal bar, Black stemmedContinue reading “Repairing Microbee No3 Keyboard”
Three Bee, Three Bee!
For anyone trying to follow along at home, last we saw the Microbee computers, I’d managed to make the cable for the Microbees, and proven the base 32k “Communicator” model was working fine. I’d resurrected the PC85 and upgraded it to an 85b model complete with a bunch of embedded games. Now back to theContinue reading “Three Bee, Three Bee!”
Mini MicroBee update
I have the PC85 Microbee from the last post working now. Thanks to Ernest, who persevered in his assistance and identified a mistake in the ROM order, I was finally able to get a proper booting PC85B system. This allows double sized (16K – AKA 27128) ROMs and I’ve got a couple of additional gamesContinue reading “Mini MicroBee update”
While I wait for orders to arrive
I’ve got various bits’n’pieces on their way from China, so I haven’t been quite as busy as I could have been. Not a lot of upgrades / repairs are in the pipeline anyway so I haven’t needed to fix stuff. Having said that, my SE/30 needs to be broken down and the Digital board needsContinue reading “While I wait for orders to arrive”
Being the Microbee
I got the PC85 Microbee working 😀 First up, I am, once again in debt to the Retro Communities to which I belong. The people over at both Microbee Technologies and MSPP (Especially Brad) who provided advice, pointers and general assistance as I got the second of my Microbees working. Now, the fault I wasContinue reading “Being the Microbee”
Deliveries
I’ve put the Microbee away for a bit. I’ve done a lot of work on it, and it’s a LOT more stable. Not completely stable and I’m yet to work out why. (I’ve desoldered the connectors between the boards and completely replaced them. I’ve also replaced the ROM socket for the IC27, which was greenContinue reading “Deliveries”
2 Bee or not 2 Bee
Couldn’t resist THAT bad pun 🙂 So I’ve got a couple of days of leave, and now that my wife has plied me with Yum Cha, and I’ve done my first non retro repair around the house, I thought it was time to start working on another one of my retro-computers. Sorry, not the PET.Continue reading “2 Bee or not 2 Bee”
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