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Hello, The A3000 is a lovely machine, specially if you like fiddling, I hope you enjoy it. 1) The battery replacement looks good enough to me, and it's a good thing the old cell is gone, regardless. 2) That looks like a rechargeable cell from you photo, so as long as the computer gets used enough to...

Holy moley this is utterly amazing. I'm so glad Rob made these, and I'm lucky enough to have one of my own. This really needs to become a required upgrade for Beeb owners.

Hello,
Thank you very much for your excellent article, although I admit I took a rather less professional approach when doing the same with my Model B.
Also the inspiration for making an external PSU brick for my ADAM.

On reflection the photo I took may not be that useful so a few words of explanation and I'll gladly take some close-ups of needed. 1) I pulled the old PSU from the Beeb's cage and desoldered all the input and output connections: -Two mains wires, red and black, with spade connectors -The yellow/gree...

Thanks for the most helpful replies, my PSU was a little dodgy... Maybe the last time it went up in smoke replacing the usual caps wasn't enough. I went ahead and replaced the guts with a Mean Well PT-65A and all is running very nicely. I had already bought one to make a UK power brick for my recent...

Lovely, thank you!

Hi all, Hopefully a quick question with an easy answer. But I haven't tracked it down via google. Does anybody know what the Model Bs PSU is supposed to be rated for? My machine has a fair bit hanging off it and has gotten darn flaky of late. I suspect I'm either driving the PSU too hard or it's not...

Just a thought: Along with the previously mentioned advice when I had one of these boards it was similarly flaky in 4Mhz mode. It proved to be a dodgy 4Mhz line... Have a scootch though the manual for the alternate pickup points for that lead and see if any of those are better. Having hopefully foun...

:lol: Glad to be of help. Oh, by the way I'm not a doofus. I'm a three star general of the grand doofus brigade! Having thanked my maker that I hadn't flipped the power switch I thought I'd follow my own advice and do it properly; so I pulled the extra ROMs I have, disconnected the upgrades, and rem...

Well I'm a total doofus! :oops: Thanks Rob, I was just about to go fire up my Beeb when I saw your reply. In my excitement I commited the cardinal sin of not checking what I was doing: "There's an IC of the correct size marked ULA"... Pull IC and in with the board. "Ooo, that's a well...

I was most excited to receive my very own VideoNuLA this weekend, a lovely bit of kit, and my sincere thanks to Rob (and others) for producing this fantastic upgrade. It was a bit of luck to discover my ULA is socketed - my Beeb has had a fair few upgrades, and as is the way of these things mods = g...

:) Thanks for that. I should have read the thread more carefully. Um, if I may ask one more (probably stupid) question? I think I see from your explanation why 'proper' blitting/sprites isn't going to fly. I have to admit what I had in mind was less ambitious: Plot 85 (I think), fills an area of scr...

Hello again.
So excited by this, my thanks again for all your hard work Rob.

Um, brace yourself for an utterly unreasonable request:
Any room to implement a hardware blitter / rasterizer? (hooked in to the relevant Plot commands would be nice too)

I know, I know...

Ooo, I've not been around for so long... And so much to catch up on! I'd been tinkering with the notion of hacking the Speccy's extra half bright into the Beeb in place of the useless flashy combos for years but never got round to working out if it was feasable, but now I don't care at all - this pr...

Update: After burning the above image I have a (semi) working 4Meg 256k board. I was a little surprised that unlike my 32k board this 256k ROM doesn't report the speed: 2/4Mhz switchable. Unless I've got it wrong I think the above ROM image is for Solidisk's ROM/RAM board rather than the 256k 4Meg a...

Lovely!
Thank you very much - I never have been much good with on line searches it seems.

Time to go blow that ROM.

Thank you again! :D Hmm, 'My' MMC solution is currently on hold while I continue to investigate why I can't get MMC to work reliably with my Elks + known working UPURS board... ...I think I need a solid platform to work from before I fiddle with my own solution further. As fast as I can tell I think...

Many thanks!

Got mine, plumbed in and working very well indeed.

Thank you again.

Hello all,
Many thanks for the most helpful replies, sorry again for my terribly slow reply.

Um, after publicly jumping up and down in my excitement I didn't get that Compact after all.

Still, not wasted effort - I'll track one down eventually and come back to this thread. Thanks again.

Hello all, Got the day off, so another daft question: Can anyone point me in the direction of a ROM image for this Beeb upgrade? Why..? I'm lucky enough to have a working 32k version and I just got round to repairing a rather jiggered 256k board... but it has no ROM and I can't for the life of me fi...

Hello all, I hope in my excitement I'm not about to eat my words... I've always wanted a Master Compact and there's currently one on eBay. Yes, I know others will be bidding but as my wife has agreed to buy it as a birthday present I'm not going to run into my usual "I'm not spending that much ...

Ooo, very nice chaps.

Would the following be of any interest / relevance?
http://users.axess.com/twilight/sock/hi ... color.html

Hi duikkie, thank you very much for this. I must go have a play. :D I know I've gone a bit quiet with 'my' MMC solution for the Elk - I can still only get the computer to recognise an MMC interface plugged in to a working UPURS board for about 90sec after the machine has been switched off for a coup...

This is just amazing! :D =D> :D :shock: :D =D> :D I really must find time to finish my new Atom, I've got to have a go at this myself. I don't ( [-o< as yet [-o< ) have a Matchbox CoPro to call my own but I can see my Master donating it's ReCo65C186 - I guess that should also fit inside an Atom case...

Ah, I can split the Atom too: Just a small step toward having a Roland Atom of my own. Also with a (properly dead) donor Atom the Franken-freak I had been contemplating will not now see the light of day - Atari saved and gone to a good home.

Um, feel free to delete this post if felt to be an abuse of the thread: While reving myself up to build one of Roland's excellent Atoms I've been perusing the software currently available... I must say there's been some amazing new games and conversions to add to the catalogue of old favorites for w...

Thanks again Martin, I do appreciate your thoughts. Yes, you're right - a typo Current plan: -Fit a full set of decoupling caps -Take your advice regarding PHI and mod the current board -Maybe start again with your schematic if I'm getting no joy - very likely what I should have done in the first pl...

Well that's just odd: Same 6522 swapped between UPURS board and my board to reduce variables. UPURS Power on after computer off for a while: PRINT ?&FCBO gives 255 - no Card? error. Once the machine's been on for about 90 sec: PRINT ?&FCBO gives a steady 253 and I have the Card? error Nothin...

@Martin & Roland: I do appreciate your help/input, thank you It's safe to say that while I'm pretty good with a soldering iron and can follow a schematic I'm not that hot on the theory, especially when it comes to the software side of things - also very limited knowledge indeed when it comes to ...

Right, the moment of truth... [-o< All wired up, connections endlessly checked, Elk booted from cold (MMC doesn't seem to work for me using my UPURS board once my Elk has warmed up), and... "Beep" No magic smoke, nothing feeling hot... and... Card? D*mn and bl*st it! Ok, ok, I wasn't reall...