Search found 1281 matches

by AndyF
Wed Jun 05, 2019 11:59 am
Forum: 8-bit acorn software: other
Topic: ADFS and DataCentre Page at 1900
Replies: 7
Views: 589

Re: ADFS and DataCentre Page at 1900

I think there was a erm "lighter" DFS on one of the DC cd-roms or something.

I do know what you're saying I have a vague memory of a lighter ADFS or suchlike but I don't think it moved Page that much.
by AndyF
Sun Jun 02, 2019 12:29 am
Forum: 8-bit acorn hardware
Topic: Composite video from the BBC
Replies: 23
Views: 1318

Re: Composite video from the BBC

PitfallJones wrote:
Sat Jun 01, 2019 11:53 pm
Yes - looks like mine is an issue #1 - thanks for showing me exacly where that is.
Most welcome. :) Just pleased you could make sense of my quick pic. :oops:
by AndyF
Sat Jun 01, 2019 11:14 pm
Forum: 8-bit acorn hardware
Topic: Composite video from the BBC
Replies: 23
Views: 1318

Re: Composite video from the BBC

Can you not see the issue number on the board itself then ? :) I think you might need to see what issue of mainboard it is, this is printed on the PCB near the bottom (as in near the edge connectors Tube/Disc etc) below the cart slots area about a couple of inches to the left of it. Pic may help ? :...
by AndyF
Fri May 31, 2019 5:46 pm
Forum: 8-bit acorn hardware
Topic: Composite video from the BBC
Replies: 23
Views: 1318

Re: Composite video from the BBC

I think the 'best' way would be to fit a two pin header then a jumper, but myself I'd probably clear the holes out a bit with a desolderer/sucker tool and then simply use a wire link. Probably. :) You might be able to actually put a erm blob across both those pads to just link them but I'd not reall...
by AndyF
Fri May 31, 2019 3:14 pm
Forum: 8-bit acorn hardware
Topic: Composite video from the BBC
Replies: 23
Views: 1318

Re: Composite video from the BBC

I'd also like to chip in to say that there are, at least, two different variants of BNCs. There are 75ohm and 50ohm variants, which have different sized centre pins. The 75ohm ones are used for video, and the 50ohm are used for...well, actually, I can't remember - it's been 10 years since I worked ...
by AndyF
Fri May 31, 2019 12:43 pm
Forum: 8-bit acorn hardware
Topic: Composite video from the BBC
Replies: 23
Views: 1318

Re: Composite video from the BBC

Actually this is a bit better, covers most of them and Iss2 just needs a link apparently:
App Note Composite Video.pdf
(7.73 KiB) Downloaded 42 times
=D>
by AndyF
Fri May 31, 2019 12:40 pm
Forum: 8-bit acorn hardware
Topic: Composite video from the BBC
Replies: 23
Views: 1318

Re: Composite video from the BBC

To clarify you have a Master not a Master Compact yes ? The Compact has a separate 'keyboard' (its actually most of the computer) and a large box with a drive or two in and a power supply, whereas the Master is a single box. I think you might need to see what issue of mainboard it is, this is printe...
by AndyF
Wed May 29, 2019 8:49 am
Forum: 8-bit acorn software: other
Topic: MIA Educational Software on eBay
Replies: 2
Views: 489

Re: MIA Educational Software on eBay

Great stuff, thank you for your continued efforts. My search for 'Newsnet' still continues, it will eventually appear. Question really that I ponder is that is one that I can remember/know about whereas there must be a shedload more of Econet based ones that I do not know about. Our version never wo...
by AndyF
Sat May 25, 2019 7:46 pm
Forum: 8-bit acorn software: games - high scores
Topic: Choice of emulator for the high score challenges
Replies: 7
Views: 591

Re: Choice of emulator for the high score challenges

I tend to use BeebEm too most of the time. I do occasionally fire up B-Em too, as that offers a ModelA mode easily. More accurately I suppose I mean when I want to use it as a 16K machine!
by AndyF
Fri May 24, 2019 12:10 am
Forum: 8-bit acorn hardware
Topic: Fault Fix Model B Showing 16K
Replies: 8
Views: 756

Re: Fault Fix Model B Showing 16K

Nearest (ish) equivalent I can really think of is a 48K 6502 based (instead of Z80) Speccy, but with a keyboard instead of a membrane rubber mat. Its half decent to type on. Brief info here There are some slightly odd things with it (generally I think not just mine) but decent-ish selection of softw...
by AndyF
Thu May 23, 2019 7:34 pm
Forum: 8-bit acorn hardware
Topic: Fault Fix Model B Showing 16K
Replies: 8
Views: 756

Re: Fault Fix Model B Showing 16K

Good to read there's been some progress. :) :) I'm sure it will all be 'as expected' soon. So true regarding the purchase, same as most things I suppose you could find anything! :D I found a most bizarre transistor/cap arrangement "floating about" on an Oric-Atmos around the modulator input area tha...
by AndyF
Thu May 23, 2019 10:50 am
Forum: 8-bit acorn hardware
Topic: Fault Fix Model B Showing 16K
Replies: 8
Views: 756

Re: Fault Fix Model B Showing 16K

You're welcome, sorry tis not much help though! :oops: A test disc would be a good thing maybe as I say, Watford one I think has some memory test on it. Composite: I ended up once putting a couple of single pins on the board, a bit like the IDC type header pins so I could simply plug/unplug the comp...
by AndyF
Thu May 23, 2019 9:11 am
Forum: 8-bit acorn hardware
Topic: Fault Fix Model B Showing 16K
Replies: 8
Views: 756

Re: Fault Fix Model B Showing 16K

Would one of the test discs that included a memory test be worthwhile running perhaps ? Possibly a reasonable 'quick and easy' step although I half suspect it might only "try" to test the 16K rather than look further but for the sake of a minute if you can grab a disc its worth doing. Actually what ...
by AndyF
Wed May 22, 2019 9:19 am
Forum: 8-bit acorn hardware
Topic: Crescent Disc Filing System
Replies: 9
Views: 764

Re: Crescent Disc Filing System

I'm not sure how it escaped being photographed before going into storage. The whole idea was to photograph everything being put away, which is why it took about 5 years to get everything into storage instead of the estimated couple of weeks! But I'll bring it back and have a look at it when I can. ...
by AndyF
Tue May 21, 2019 12:17 am
Forum: 8-bit acorn hardware
Topic: Replacement Keyboard LEDs
Replies: 8
Views: 736

Re: Replacement Keyboard LEDs

Welcome! :) I can't personally say I'd noted much difference in them when on the very odd occasion I'd change one or two. Perhaps the 'new' one is correct and 'age' has effected the others ? I don't think they age as such but I am thinking the 'yellowing effect' on the plastic casing of them, simila...
by AndyF
Tue May 14, 2019 3:46 pm
Forum: 8-bit acorn software: classic games
Topic: Electron Elite query
Replies: 18
Views: 1105

Re: Electron Elite query

Fractionally off topic here but what happens if you try the MasterCompact (ADFS Based by default) version of Elite on the Elk ? I'm only picking this one up as ( a ) The M128C version is ADFS and ( b ) If I remember correctly (not seen one for years) the plus expansion for the ELK only really initia...
by AndyF
Wed May 08, 2019 7:08 pm
Forum: 8-bit acorn hardware
Topic: Useful Electron ROMs?
Replies: 6
Views: 598

Re: Useful Electron ROMs?

all machines need Advanced Disc Toolkit ROM, great for comparing files /check memory locations / moving stuff down to &E00 8) I was going to mention that but I was slightly confused by the versioning of it, I can't remember off hand (can't check now) if its a v1.x for the Electron and 'B and v2.x f...
by AndyF
Sun May 05, 2019 5:56 pm
Forum: 8-bit acorn hardware
Topic: Can't access disc drive
Replies: 18
Views: 862

Re: Can't access disc drive

Unlikely but one problem I had with a certain type of kit was the 'links' provided would not seat or stay/place nice in the IC sockets. In the end I got that annoyed I soldered links over the IC pins instead (component side so it was visible to the unwary!) As I say I don't think that's your issue h...
by AndyF
Sun May 05, 2019 7:44 am
Forum: 8-bit acorn software: other
Topic: Tapestry graphics demo (BBC BASIC)
Replies: 5
Views: 868

Re: Tapestry graphics demo (BBC BASIC)

lurkio wrote:
Thu May 02, 2019 6:31 pm
Thanks for the screenshots!

:)
Most welcome. Just a few more then that's it. :)

Firstly set at 25 seeds:
tap25.png
tap25.png (11.82 KiB) Viewed 620 times
Secondly and more interestingly, a three part multi-pic of three seeds 'growing' as such:
tap_three_growing.png
by AndyF
Sat May 04, 2019 9:48 am
Forum: 8-bit acorn software: other
Topic: Whitehall game (BBC BASIC)
Replies: 5
Views: 702

Re: Whitehall game (BBC BASIC)

These kind of games are quite fun a bit like 'Millionaire' and there's another one or two if I remember correctly too. I first found those on another platform them realised they were also available on the 'B as well. Millionaire was a bit too tricky but as it was Basic it was not outside my scope to...
by AndyF
Thu May 02, 2019 10:04 am
Forum: 8-bit acorn software: other
Topic: Tapestry graphics demo (BBC BASIC)
Replies: 5
Views: 868

Re: Tapestry graphics demo (BBC BASIC)

Its quite interesting :) :) Best I found to set a lowish number of seeds, say 2 to 8. Setting a high number makes an interesting symmetry type pattern though: 100 Seeds - Yes I know, sorry) 100s.png 5 Seeds - After a few seconds running 5s_1.png 5 Seeds - After a couple of minutes running 5s_2.png =D>
by AndyF
Tue Apr 30, 2019 10:47 am
Forum: general
Topic: Bit of fun - One change only
Replies: 97
Views: 5161

Re: Bit of fun - One change only

I think with the B opposed to the A at least, it was a trying perhaps to be a case of "all things to all men" (not sexist, just a phrase) :) I did actually sort of agree with the Atari type 9pin stick socket but then again I'd guess there was some kind of (Watford perhaps?) 'adaptor' to permit said ...
by AndyF
Sun Apr 28, 2019 3:51 pm
Forum: 8-bit acorn hardware
Topic: Add switch to dual drives to allow booting from either/or?
Replies: 23
Views: 1140

Re: Add switch to dual drives to allow booting from either/or?

You may be thinking of the mod that some people do for Spectrum +3 external drives which just grounds out a pin causing the drive select to be overridden instead of properly swapping lines? That shorts the output of a 74HCT04 inside the machine. :shock: I cannot recall exactly why. I know with my '...
by AndyF
Sun Apr 28, 2019 3:40 pm
Forum: 8-bit acorn hardware
Topic: Add switch to dual drives to allow booting from either/or?
Replies: 23
Views: 1140

Re: Add switch to dual drives to allow booting from either/or?

I have to say I prefer the DS mod where it is possible even though it can be a bit of a "£$"£$"£ with some of the modern 3.5"s to do it, over and above the cable swap method. There was something I read why you should not do the cable method but it is highly possible this was not Acorn related and ma...
by AndyF
Sun Apr 28, 2019 8:47 am
Forum: 8-bit acorn hardware
Topic: Add switch to dual drives to allow booting from either/or?
Replies: 23
Views: 1140

Re: Add switch to dual drives to allow booting from either/or?

Hi Andy, the 3.5" drive is currently drive 0. To be fair, I'd probably add a Gotech unit in place of the 5.25" simply because I struggle to find media for it that actually work reliably (old disks are fine but have been copied to 3.5 now). :) Greets. That does make some sense. I no longer have a wo...
by AndyF
Sun Apr 28, 2019 8:10 am
Forum: 8-bit acorn hardware
Topic: Add switch to dual drives to allow booting from either/or?
Replies: 23
Views: 1140

Re: Add switch to dual drives to allow booting from either/or?

I'd assume here that it would just be a case of a DPDT switch to move the 'DS' between each drive to do this, the same way you'd have to manually mod a modern (ish) PC 3.5 DS link to make it work as DS0 (where possible) although before anyone else replies with more info to hand it *might* be slightl...
by AndyF
Tue Apr 23, 2019 5:51 pm
Forum: 8-bit acorn software: other
Topic: Toggling binary bits
Replies: 6
Views: 667

Re: Toggling binary bits

Probably not that helpful: eor_help.png FWIW I did want to look into something like this for one of my random 'quick type in's' with the thought of using something I was used to on the ZX platform that being BIN xxxxxxxx for a value so I could in effect 'draw' the UDG but it did not seem to apprecia...
by AndyF
Mon Apr 22, 2019 9:35 pm
Forum: 8-bit acorn hardware
Topic: Master ROM - what does it do?
Replies: 7
Views: 799

Re: Master ROM - what does it do?

I could be wrong but I have a vague recollection of seeing a W.E advert for a 'Master Rom' , it was if (again not sure!) a controller ROM to allow you to enable/disable other roms on a 'B , a bit like an *UNPLUG effect I suppose amongst some other features. I'm not 100% sure if it was this one I was...
by AndyF
Sun Apr 21, 2019 12:53 pm
Forum: 8-bit acorn software: other
Topic: Watford Electronics Diagnostic Disc question
Replies: 7
Views: 686

Re: Watford Electronics Diagnostic Disc question

Random access test is usually (afaik) just to check it can get the drive to "move to track x" without it hanging. I'm not sure it would attempt to read the content of a specific sector as it would have to either have a pre-patterned disk (possible I suppose if its made it with its test) or know what...
by AndyF
Thu Apr 18, 2019 6:19 pm
Forum: general
Topic: Bit of fun - One change only
Replies: 97
Views: 5161

Re: Bit of fun - One change only

1024MAK wrote:
Thu Apr 18, 2019 3:08 pm
This thread has gone rather off topic.

When I get time, unless there are any objections, I’ll split the discussion about computers in schools into it’s own thread.

Mark
Please. :)

I'm quite guilty it seems too even though the original "one change only" , I was the topic starter :oops:

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