stardot.org.uk

Arrived today! I have sound chips to play with! Thanks so much, I owe you a beer sir!

Ooh yes please. I've emailed you for re-homing a spare SN76489 and YM2149 sound chip!

There's a post here talking about that very thing:
viewtopic.php?p=149157#p149157

IanS wrote: ↑

Tue Nov 27, 2018 10:12 pm

I'd offer to look in my (unexploded) A310 PSU for the C2 value, but it looks suffiently different to yours, that it may not be helpful.

Thanks Ian. Crumbs, very different looking psu's! I wonder if my other A310 will be the same psu now!

For C1, 0.01uF is a 10nF. Both the same value, just using a different SI multiplier. For C2, if it physically fits, a 100nF (or 0.1uF) type will be fine. They are interference suppression capacitors, so the value is not critical. Both C1 and C2 must be X2 rated (for safety) as they are connected ac...

Seems the caps on this board are very similar but not quite to the ones in Retroclinic's BBC cap repair kits.

C1 = X2 0.01uF (RC's are 10nF X2 RIFA)
C9 = 25V 470uF (RC's are 35V 220uF)
C2 = ??? (the popped one has burned so no idea what it is apart from some type of RIFA) (RC's are 100nF X2 RIFA)

Ok. I decided to get gnarly with it. It pops out if you encourage it upwards with a screwdriver.
Right so now I can see the PCB. There are loads of caps! But which ones will be borked or nearly borked?

Thanks for help so far.
Does anyone know how I get the black grommet loosened? I can't get the PCB out unless I can remove it.

Interested in this too for exact same reason - new fan and filter for A310. I was eyeing up this one:
Look at this on eBay http://www.ebay.co.uk/itm/123215347110

But then you said 50mm ... !

Bit of a tangent, but speaking of jet set Willy, this site has been busy creating tilemaps of it for pc...

https://simonowen.com/spectrum/tilemap/

Out of interest, what features/functionality does swift have that you particularly wanted to use?

Probably because 8 colours is 3-bits per pixel and in an 8-bit, byte based machine that's a pain to work with - much easier to blob pixels into bit quantities of 1, 2 or 4 that pack neatly into 8-bit bytes.

EDIT: As Gerald said also. Posted at same time!

This is really good! Love the graphics, and it's nice to play a game that's not teeth grindingly hard for a change!! :D I only played the first five levels so far, but felt it was quite easy overall (but maybe the later levels get harder, I havent seen them yet) Couple of suggestions if you fancy: G...

Ok, so I had some time to disassemble a bit more of the beast. The PSU in situ 2018-09-22 23.02.41.jpg The ganky motherboard 2018-09-22 23.06.58.jpg This was rattling around inside the PSU - looks like what's left of a capacitor 2018-09-22 23.17.18.jpg The PSU - so my question is, how is this PCB di...

Thanks for the tips folks!

While the machine is stripped it could be a good idea to replace the PSU fan with a silent type. It will make using the computer much nicer. This will involve opening the PSU and soldering wires together though. This sounds interesting - could you advise a suitable replacement fan? Would that same ...

Releasing the source as a zip may not be as sophisticated as putting it on GitHub, but it has achieved what I set out to. Absolutely, and a perfectly fine way to do it - entirely your prerogative how you want to distribute your own projects. That said, you might wish to consider putting some type o...

The bitshifters slack channel just lit up on the back of this revelation...

oh my....

Haha! Nice one Rob, love it.
Out of interest, what method did you use to convert the audio?

Richard Russell wrote: ↑

Sun Sep 16, 2018 4:12 pm

That would certainly be very helpful to me.

As promised then, hopefully it is of some use!

Hi all, Github/git has come up a few times in various discussions, and often in the context of folks who have some source code or a project they want to publish in the public domain, but are perhaps put off because at first inspection the world of git and Github can seem a bit overwhelming. I though...

What are the pros and cons of doing that rather than using my own GitHub account, for example? I always think of StarDot as being closely associated with Acorn, and 'my' BASICs (unlike Brandy for example) are absolutely not! :evil: An excellent question. There are no right or wrong ways to go about...

Thanks, I think I'm going to journal what I do, in the event its helpful for future hardware beginners like me. I recommend that you open it up and carry out a visual inspection by eye (under a good light) looking for any physical trace of the cause of the smoke, such as soot marks, blackened, damag...

If you think it appropriate Richard, your project could be easily added as-is to the stardot GitHub organisation alongside other open source community projects. Github is actually quite straight forward to use once you acquire a few bits of know how, and I'm continually impressed with how collaborat...

Resurrecting this thread in the hope some kind folks could help out a non-hardware-techie type like me with fixing an old A310 I bought on gumtree. The seller wanted to show me it working, but when he did, a bunch of smoke came out of the machine so he offered it for just a tenner - bargain! :D So, ...

Having worked on official Peppa Pig games, I can say that they do endeavour to protect their copyright but not that aggressively - there were at one point a whole slew of knockoff Android PP apps. Realistically, rights holders aren't going to eat the cost of enforcing against hobby projects like thi...

Pretty sure I have this. Not sure when I'll get a chance to download it though, but will try over next week.

Agree with Rich. This is crazy good for a beeb. Amazing work tricky. Would love to see a 'how it works' type blog if you ever feel so inclined.

Not sure if already posted on here, but I noticed that John Kortink has been building up a HDMI converter for the Beeb...
https://twitter.com/WindfallNL