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What voltage switched are you using?

d.

It's all in the flashfloppy wiki: https://github.com/keirf/FlashFloppy/wiki

Hardware mods, how to flash, etc, etc...

I did a crappy video ages back showing how to add some of the hardware mods:
https://www.youtube.com/watch?v=fedLRCFZycY



d.

I have the kit to archive/recover it and I'm in Manchester - don't touch it, wait until we're allowed out again, and I'm happy to have a go at recovery? The datacentre/UPURS route works if the beeb can read it, but the flux-based methods (e.g. greaseweazle, kryoflux etc) allow analysis by software a...

Love it Good stuff! And welcome to the forum!

d.

Ah, another one from the locality Welcome from locked down South Manchester/Stockport

d.

Hi all,
Just whilst we're all restricted we're putting a pause in on selling/wanted requests to stop people feeling obliged to make unnecessary trips to the post office that might put them or others at risk, as well as additional strain on services. Hopefully it won't last too long

d.

Hi all,
Just whilst we're all restricted we're putting a pause in on selling/wanted requests to stop people feeling obliged to make unnecessary trips to the post office that might put them or others at risk, as well as additional strain on services. Hopefully it won't last too long

d.

You know, I always read these threads with trepidation as I think they'll be someone asking us to change something

Yes, I'll snap a photo tomorrow when my phone's recharged!

d.

Check continuity on the OS socket. Check the contacts on the keyboard connector!

d.

We're basically on lockdown here. The University has moved everyone to home working. Zoom is my new friend. I was very pleased to hear today from colleagues that there are a good number of clinical trials about to kick off that the MHRA has approved. We hear an awful lot of fear and trepidation in t...

I did, and I think I did it too but I haven't had a chance to check on that computer yet. Things are a touch hectic at the moment! If I haven't I will do it as soon as some sense of rhythm is established!

Look after yourself Dave! I suspect Wakefield will be cancelled

d.

You'll need to give them a quick dunk/scrub then rinse. There's no sense in using IPA on a battery leak, it just moves the stuff around, doesn't actually neutralise anything or clean it up. IPA is good for grease/resin removal, absolutely rubbish for mineral salts that are soluble in water

d.

Cut battery out.
100% distilled vinegar, no need to dilute. Give it a rub with a brush. Bin the brush. There might be cadmium knocking about, it's not very nice.

Rinse well with water, distilled if your water isn't soft.

Let dry, survey damage.

No need for IPA or anything.

d.

Nice to see others running the ARM250 at these speeds :D Have you put a heatsink on the RAM? When I first did this mod I left the machine running SF3000 for hours on end and the RAM would be the one to get too hot. On the 2 machines I did this overclock on 25mhz worked on both with no issues. This ...

stephen_usher wrote: ↑

Fri Mar 13, 2020 10:27 pm

Have you put a heat sink on the ARM? It may need it at that clock rate. It was getting above 60C at 72MHz.

This does sound unusual, I've not heard of others getting this hot.

Try a clean boot (i.e. shift-held at switch on so uniboot isn't loaded).

d.

One of these: https://cpc.farnell.com/duratool/d00672 ... dp/SD01384 - not sure how it'd hold up to intensive use though? It's good for intermittent stuff.

d.

I was never aware of the volume setting having any impact on recording on any of the tape decks I ever had?

In so far as typical, it entirely depends on the deck as Colin said - the volume numbers are entirely arbitrary (apart from 11 on Marshall Amps).

d.

OK, gotcha. I'll try it on my A5000 and A3020 tomorrow (also using the BenQ) if I get a moment.

d.

As in running the disk image? I'd still want to try it without ADFFS. Even if you're not autobooting it does do some bits and bobs iirc... Including some stuff around trapping screen modes.

d.

Can you try it *not* using ADFFS?

d.

I've moved some posts out of this thread as they weren't anything to do with selling RAM

d.

Hello - we just got a request to activate PMs... I'm happy to do so, but it's genuinely really helpful if all troubleshooting goes on in public threads, then other people can benefit from reading it!

d.

Mine's set to 350. :) You're removing a dead chip, so you don't need to worry about saving it. The easiest way to do this is to use side cutters, and cut each leg close to the body of the chip, then lift that away. After that you can remove each pin by heating up and whisking out from the top side w...

xterc wrote: ↑

Wed Mar 04, 2020 5:36 am

I built and installed my 4MB RAM expansion thanks to this thread.

Great to see Is it working?

d.

I'd still suspect RAM or ROM first...

It's not always obvious, what do the traces on the data lines look like?

d.

Dear All, Many thanks to Alex Bienek from the original Acorn Phoebe hardware team for these. I have permission from Alex to share with the forum so that they can be archived for posterity. Kind Regards Andy Phoebe_Schematic_rev1.pdf Please note for the eagle-eyed that there was not a sheet 4 for so...

Electron LISP and Pascal work fine in the Master. Games will work but as Dave said, be fast. Hardware won't work (and you wouldn't need it as it just replicates what the Master already has), and later versions of both View and Viewsheet are built into the Master's mega-ROM anyway, so there's no mile...