Search found 1885 matches

by steve3000
Wed May 30, 2018 5:42 pm
Forum: general
Topic: Master spray job
Replies: 17
Views: 795

Re: Master spray job

tn_DSCF3753.JPG
Disc Drive
tn_DSCF3755.JPG
Label gap up close
tn_DSCF3757.JPG
Process
tn_DSCF3763.JPG
Result
by steve3000
Wed May 30, 2018 5:04 pm
Forum: general
Topic: Master spray job
Replies: 17
Views: 795

Re: Master spray job

I picked up a couple of empty Master 128 cases last year. Both are very yellowed. One of them has obviously had something with a straight edge put on top such that half the case is yellow and the other cream. I suspect that such a two-tone case will not respond well to RetroBrite treatment, even mu...
by steve3000
Wed May 30, 2018 4:48 pm
Forum: programming
Topic: 12-second Mandelbrot rendering on the BBC Master!
Replies: 107
Views: 3329

Re: 12-second Mandelbrot rendering on the BBC Master!

I've just tried the latest version and it is truly amazing work! I remember waiting with eager anticipation for 20+ minutes for one of these to draw back in the day. One recommendation - can you clear the keyboard buffer at the end of a frame? The current version (well the one at the top of the thre...
by steve3000
Wed May 30, 2018 10:00 am
Forum: hardware
Topic: US BBC micro restoration - help (and PSU) needed
Replies: 23
Views: 1154

Re: US BBC micro restoration - help needed

Also, does anyone know of any fault-finding information for the US Beeb? The PCB layout is completely different, along with the IC numbering and link numbers, and very few chips are socketed - similar to issue 7 beebs. So if there's a list somewhere of US Beeb IC numbers or link numbers, that would ...
by steve3000
Wed May 30, 2018 6:28 am
Forum: hardware
Topic: US BBC micro restoration - help (and PSU) needed
Replies: 23
Views: 1154

Re: US BBC micro restoration - help (and PSU) needed

Might it have had its ULA swapped at some time? Does it even have/need the invention mod? Good question. Fitted a ULA to get it running. No idea if it has or needs the mod - pcb is a different layout which might make it difficult to tell, and dates from 1983, if that helps? What do I need to look f...
by steve3000
Tue May 29, 2018 9:09 pm
Forum: hardware
Topic: US BBC micro restoration - help (and PSU) needed
Replies: 23
Views: 1154

Re: US BBC micro restoration - help (and PSU) needed

So first thing I did, was to switch on without a monitor connected, as I didn't have one nearby at the time... And Brrrrrr-BEEEP! :D :D :D It works! =D> ...or at least it worked ...briefly...! Plugging a monitor in revealed the following: 20180529_100817.jpg Not bad I guess for the first time powere...
by steve3000
Tue May 29, 2018 8:57 pm
Forum: hardware
Topic: US BBC micro restoration - help (and PSU) needed
Replies: 23
Views: 1154

Re: US BBC micro restoration - help (and PSU) needed

After fitting the American Beeb PSU, and a quick loan from my working issue 7 beeb - we have all the missing ICs and a source of power :D I couldn't find a really clear picture of an American Beeb online (at least not one where I could easily read the IC numbers!), so hopefully this will fill the ga...
by steve3000
Tue May 29, 2018 8:53 pm
Forum: hardware
Topic: US BBC micro restoration - help (and PSU) needed
Replies: 23
Views: 1154

Re: US BBC micro restoration - help (and PSU) needed

As you can see from the photo at the top of the thread, the insides of this US Beeb were a little nasty, having been used as a mouse-toilet for several years! I cleaned the PCB up back in 2016, with a nice soak in hot soapy water and a good scrub, but forgot to post the result, so here it is: 201805...
by steve3000
Tue May 29, 2018 8:47 pm
Forum: hardware
Topic: US BBC micro restoration - help (and PSU) needed
Replies: 23
Views: 1154

Re: US BBC micro restoration - help (and PSU) needed

Well fast-forward almost two years, and I now have one of these: viewtopic.php?f=41&t=5594&p=203516#p203516

...so time to resurrect this resurrection thread :)

First a comparison between the American Beeb PSU (left) and the UK Beeb PSU (right):
20180522_231441.jpg
by steve3000
Sun May 27, 2018 12:02 am
Forum: software: other
Topic: Border tracing Mandelbrot generator for the Beeb
Replies: 83
Views: 6740

Re: Border tracing Mandelbrot generator for the Beeb

MANDEL was included in ARM BASIC 1.00 (assembled 14th April 1986) It was not included in the next version I can find: ARM BASIC 1.02 (25th September 1987). Just out of interest, I powered up my Arthur 0.3 A310 today and had a look for the MANDEL keyword in it's ARM BASIC v1.00, but it's not present...
by steve3000
Sun May 20, 2018 2:08 pm
Forum: general
Topic: Today I received.....
Replies: 4856
Views: 334763

Re: Today I received.....

Thanks to Retroclinic, yesterday I received this rather unusual beast:
tn_20180520_145225.jpg
So hopefully I can finally fix this.
by steve3000
Sat May 19, 2018 6:56 pm
Forum: hardware
Topic: Vectorlight's A3010 IDE mod : step by step guide
Replies: 79
Views: 7089

Re: Vectorlight's A3010 IDE mod : step by step guide

This was the last IDE board I've got, hope everyone out there with one of them managed to get it working :?: Great to see you've got it into your expanded Adelaide A3010, what a machine that must be! Interesting to see also because you have a very low lying Adelaide board, mine is on much higher le...
by steve3000
Thu May 17, 2018 5:52 am
Forum: hardware
Topic: SD cards which don't work with MMFS/SmartSPI/etc.
Replies: 13
Views: 425

Re: SD cards which don't work with MMFS/SmartSPI/etc.

Have you checked that the 128mb cards are real and not those fake capacity ones that lurk on places like Ebay and Alibaba? Great thought, and useful tools thanks, but i don't think anyone is trying to fake a 128mb ( not gb) card. If anything this would be a larger capacity card cut down to 128mb as...
by steve3000
Wed May 16, 2018 10:38 pm
Forum: hardware
Topic: SD cards which don't work with MMFS/SmartSPI/etc.
Replies: 13
Views: 425

Re: SD cards which don't work with MMFS/SmartSPI/etc.

hoglet wrote:There is a debug build of MMFS that (U/MMFSDBG.rom) that logs the SPI commands sent to the card, and the responses.
Thanks Dave - just tried this, and upon issuing *CARD, I get about 40 rows of "FF400000000095:FF" before it returns the "Card?" error...

Guess that means no SPI?
by steve3000
Wed May 16, 2018 7:19 pm
Forum: hardware
Topic: SD cards which don't work with MMFS/SmartSPI/etc.
Replies: 13
Views: 425

Re: SD cards which don't work with MMFS/SmartSPI/etc.

DutchAcorn wrote:Did you use the SD card formatter to format them? Modern versions of windows are known to have issues with formatting SD cards?
Yep, that's what I used...

Not sure how to get more information off the card though, is there a tool to extract information?
by steve3000
Wed May 16, 2018 5:48 pm
Forum: hardware
Topic: SD cards which don't work with MMFS/SmartSPI/etc.
Replies: 13
Views: 425

Re: SD cards which don't work with MMFS/SmartSPI/etc.

Thanks duikkie, very useful summary.
duikkie wrote:which cards , brand and other marks ?
I only have what is in the photo, no brand or other marks.

So this would be SD only then, no SPI, that's a shame. :(

Hopefully not the start of a new trend in SD only cards...
by steve3000
Wed May 16, 2018 4:43 pm
Forum: hardware
Topic: SD cards which don't work with MMFS/SmartSPI/etc.
Replies: 13
Views: 425

SD cards which don't work with MMFS/SmartSPI/etc.

Is it normal to find that some SD cards don't work with any of the MMFS/SmartSPI/etc. ROMs using a 99p user port interface on the beeb? I recently got a couple of brand new, but very low capacity, SD cards (128mb) bundled with parts for another project. I was going to stick them in the back of my sp...
by steve3000
Sun May 13, 2018 9:00 pm
Forum: software: other
Topic: SN76489 best sample playback?
Replies: 44
Views: 1515

Re: SN76489 best sample playback?

My issue 3 beeb has a SN76489AN, however my issue 2 beeb has a SN76489N. I'm very surprised and confused by this info as everything I've read suggests that the SN76489 max clock is 500Khz, (whereas SN76489A is 4Mhz max) so unless the issue 2 MB has a /8 compensation for the 4Mhz sysem clock, it see...
by steve3000
Sun May 13, 2018 12:20 pm
Forum: software: other
Topic: SN76489 best sample playback?
Replies: 44
Views: 1515

Re: SN76489 best sample playback?

Great discussion, I hadn't appreciated the different possibilities to output sampled sound from the beeb! The SN76489AN used in most (all?) BBCs does indeed reset the bit sequence when writing to the noise control register. I know the NCR 8496 does not (this is required by the LucasArts Tandy music ...
by steve3000
Sun May 13, 2018 6:49 am
Forum: hardware
Topic: Archimedes A3010 issues
Replies: 20
Views: 1012

Re: Archimedes A3010 issues

Have you checked to see if there's a ram expansion in the machine? If there is and it's bust then it might be causing your error. Another possible cause is if there used to be a RAM expansion fitted, but then removed by a previous owner without resetting the RAM expansion links on the main PCB (so ...
by steve3000
Sat May 12, 2018 5:56 pm
Forum: hardware
Topic: Cheap SD/MMC Readers
Replies: 9
Views: 4962

Re: Cheap SD/MMC Readers

Ahh, brilliant, I'm not going mad then :)

Thanks both for those links!
by steve3000
Sat May 12, 2018 5:11 pm
Forum: hardware
Topic: Cheap SD/MMC Readers
Replies: 9
Views: 4962

Re: Cheap SD/MMC Readers

I'm setting up a mmc interface for a friend's beeb and thought I'd download a fresh copy of the "beeb.mmb" file pre-filled with games discs, but I'm really struggling to find where I can download this from... I've tried searching the forum and google without success, the download link which I'm sure...
by steve3000
Thu May 10, 2018 8:13 am
Forum: hardware
Topic: Formatting SD/CF cards for use on RISC OS 3.1
Replies: 71
Views: 19187

Re: Formatting SD/CF cards for use on RISC OS 3.1

Interesting. Try doing the same but add a new partition (option 1) before initialising. I've not used the ICS formatter for a long time, but some formatters create a default partition automatically and some don't. The warning about no partition in the table, suggests this formatter might not create ...
by steve3000
Wed May 09, 2018 4:43 pm
Forum: for sale / freebies
Topic: Worth Taking a Look At
Replies: 2687
Views: 226219

Re: Worth Taking a Look At

I've been using eBay for many years, but don't remember anywhere where a buyer can "mark item as received". Yikes, you're right! I better change what I state in my payment and collection terms... Looking back, I'd received feedback at the same time as the last two collections, but it sounds like it...
by steve3000
Tue May 08, 2018 9:07 pm
Forum: for sale / freebies
Topic: Worth Taking a Look At
Replies: 2687
Views: 226219

Re: Worth Taking a Look At

The reason is fraud. There is a scam. Pay by PayPal and collect. Then claim it never arrived. Buyer wins a refund no questions asked because they seller didn't post it to the paypal address. I've always asked buyers who pay with PayPal and then request to collect in person, to be prepared to log in...
by steve3000
Tue May 08, 2018 8:15 pm
Forum: hardware
Topic: Formatting SD/CF cards for use on RISC OS 3.1
Replies: 71
Views: 19187

Re: Formatting SD/CF cards for use on RISC OS 3.1

I don't have it in front of me now but it definitely showed that it had found an SD card adapter of some description. !HDFormat also displayed the correct size for the entire SD card, which changed if I ran it with a different card. I tried a 1gb and a 256mb and all info displayed matched the card ...
by steve3000
Tue May 08, 2018 12:54 pm
Forum: hardware
Topic: Formatting SD/CF cards for use on RISC OS 3.1
Replies: 71
Views: 19187

Re: Formatting SD/CF cards for use on RISC OS 3.1

Has anyone else had this happen? - What could be the reason? - Does it suggest that the drive isn't formatted or initialised quite right? My A310 is currently packed away, so I can't compare directly, but the greyed out icon suggests the drive is either unformatted or not being detected correctly. ...
by steve3000
Tue May 08, 2018 8:24 am
Forum: hardware
Topic: Simultaneous internet & mass storage solutions for the A3010
Replies: 27
Views: 1121

Re: Simultaneous internet & mass storage solutions for the A3010

danielj wrote:I think I've potentially got a cheaper serial solution than the wifi232... Watch this space!
Oh, intriguing! I'm watching :)
by steve3000
Tue May 08, 2018 8:23 am
Forum: hardware
Topic: Simultaneous internet & mass storage solutions for the A3010
Replies: 27
Views: 1121

Re: Simultaneous internet & mass storage solutions for the A3010

did you manage to get full networking through the adaptor? I'd be interested in hearing more about how you managed this. :) Well, it was a while ago now, and I should revisit this again, but at the time I just used Hearsay2, or was it Connector?, to telnet into the Acorn Arcade BBS - I recall being...
by steve3000
Mon May 07, 2018 6:05 pm
Forum: hardware
Topic: Simultaneous internet & mass storage solutions for the A3010
Replies: 27
Views: 1121

Re: Simultaneous internet & mass storage solutions for the A3010

Interesting thread, it would be great to find a good simple solution to this. I got myself one of these some time ago, and I’ve used it successfully with my A3010 to get online and transfer files. Using one of these WiFi232 serial adapters instead of an ethernet podule frees up the A3010 mini-podule...