Search found 2809 matches

by Prime
Fri Jan 24, 2020 4:50 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 24 to 26 January 2020: NOW FULL
Replies: 153
Views: 5373

Re: ABUG SOUTH 24 to 26 January 2020: NOW FULL

Here now!

Pretty busy already and it's only 10 to 5.

Cheers.

Phill.
by Prime
Fri Jan 24, 2020 2:05 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 24 to 26 January 2020: NOW FULL
Replies: 153
Views: 5373

Re: ABUG SOUTH 24 to 26 January 2020: NOW FULL

At mcd in Didcot, for a coffee break, expect me between 3 and 4.

Cheers,

Phill.
by Prime
Wed Jan 22, 2020 10:12 am
Forum: off-topic
Topic: Aldi Temperature Controlled Heat Gun - Available this Thursday (23-01-2020)
Replies: 1
Views: 120

Re: Aldi Temperature Controlled Heat Gun - Available this Thursday (23-01-2020)

Those heatguns can be useful for recovering chips from a board if you are scrapping it......e.g. hold board with chipside down, heat back....tap tap tap....

:) :) :)

cheers.

Phill.
by Prime
Sun Jan 19, 2020 4:22 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 24 to 26 January 2020: NOW FULL
Replies: 153
Views: 5373

Re: ABUG SOUTH 24 to 26 January 2020: NOW FULL (but taking names for reserve list)

0xC0DE wrote:
Sun Jan 05, 2020 11:13 pm
I'm interested! (and coming to ABUG)
Right just given the monitor a quick check and it still seems to be working fine.

So if you are still interested I'll bring it with me.

Cheers.

Phill.
by Prime
Fri Jan 17, 2020 12:42 pm
Forum: off-topic
Topic: Which soldering iron?
Replies: 20
Views: 430

Re: Which soldering iron?

Just my 2 penneth....

Hakko FX-888D for soldering
Aoyue 2702A for desolder / rework / hot air.
Use 60/40 Pb/Sn solder.

Cheers.

Phill.
by Prime
Sun Jan 12, 2020 12:22 am
Forum: upcoming and recent events & exhibitions
Topic: Do we need more ABug meets? If so, where should they be?
Replies: 35
Views: 2923

Re: Do we need more ABug meets? If so, where should they be?

tricky wrote:
Sat Jan 11, 2020 5:53 pm
The misses (Carol) wants to see the railway museum "together", so I would be up for a York ABUG.
Lesley and I would prolly be up for a long weekend in York too....

Cheers.

Phill.
by Prime
Sun Jan 05, 2020 11:00 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 24 to 26 January 2020: NOW FULL
Replies: 153
Views: 5373

Re: ABUG SOUTH 24 to 26 January 2020: NOW FULL (but taking names for reserve list)

Does anyone that is coming to the meetup want a Compaq V710 CRT, SVGA monitor? It's a 17" FST tube that will do up to 1600x1200, specs available here : https://www.cnet.com/products/compaq-v710-crt-monitor-17-series/ Basically this is free of charge, if no one that is coming to the show wants it but...
by Prime
Fri Jan 03, 2020 4:28 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 24 to 26 January 2020: NOW FULL
Replies: 153
Views: 5373

Re: ABUG SOUTH 24 to 26 January 2020: NOW FULL (but taking names for reserve list)

Right Hotel booked!

I'll see you all later in the month....

Cheers.

Phill.
by Prime
Wed Jan 01, 2020 4:39 pm
Forum: acorn atom and system
Topic: W65C02S6TPG-14 and AtoMMC (split from YARRB [SOLD OUT])
Replies: 25
Views: 692

Re: W65C02S6TPG-14 and AtoMMC (split from YARRB [SOLD OUT])

Right can confirm that the replacement of the LS75 with LS175 allows the AtoMMC to work with the WD65C02 CPU. One thing I did find however is that the WD CPU is even more fussy about the 8255 that it will work with than the NMOS version. In the end I ended up using an NEC D71055, which is compatible...
by Prime
Mon Dec 09, 2019 9:13 am
Forum: hardware
Topic: PLCC Chip Extractor
Replies: 9
Views: 516

Re: PLCC Chip Extractor

derek wrote:
Mon Dec 09, 2019 12:34 am
Hi,

I have a chip extractor, I bought from Maplin Electronics, over 10 years ago. It never let me down, extracted PLCC, DIP chips with ease.
Yeah I have a couple of those, and agree works like a charm.

Cheers.

Phill.
by Prime
Sat Nov 30, 2019 10:51 am
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 24 to 26 January 2020: NOW FULL
Replies: 153
Views: 5373

Re: ABUG SOUTH 24 to 26 January 2020 (Hampshire) BOOKING THREAD

sign me up please, as norma full table friday to sunday please.

Cheers,

Phill.
by Prime
Thu Nov 21, 2019 11:06 pm
Forum: acorn atom and system
Topic: Replica Atom
Replies: 65
Views: 3079

Re: Replica Atom

Looking good.

If you have a light box and some largish sheets of tracing or other semi transparent paper you could print out and compare easily to the Issue 5 board., To make sore all components are in the correct places.

Cheers,

Phill.
by Prime
Thu Nov 21, 2019 10:55 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 22 to 24 November 2019 - NOW FULL
Replies: 179
Views: 7980

Re: ABUG SOUTH 22 to 24 November 2019 - NOW FULL

danielj wrote:
Thu Nov 21, 2019 9:59 am
Turn up, set up, drink beer :)
Sounds like a good plan! :) :)

Phill.
by Prime
Wed Nov 20, 2019 6:49 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 22 to 24 November 2019 - NOW FULL
Replies: 179
Views: 7980

Re: ABUG SOUTH 22 to 24 November 2019 - NOW FULL

Just on the offchance, does anyone have a 74LS374 (DIP) knocking about they could yoink along? I don't think I can order one in time and it's the only other thing I can think of that might need replacing in a repair job... I'm sure you know this but just incase.....if you are designing something ne...
by Prime
Sun Nov 17, 2019 11:35 pm
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 22 to 24 November 2019 - NOW FULL
Replies: 179
Views: 7980

Re: ABUG SOUTH 22 to 24 November 2019 - NOW FULL

Right with less than a week to go, anything anyone wants me to bring?

Already bringing Issue 5 Atom board & keyswitches for JudgeBeeb.

Arcadian, do you still want those C64s I offered you, if so shall I bring them?

Anything else anyone wants me to bring along?

Cheers.

Phill.
by Prime
Sat Nov 16, 2019 9:56 am
Forum: acorn atom and system
Topic: Replica Atom
Replies: 65
Views: 3079

Re: Replica Atom

JudgeBeeb wrote:
Fri Nov 15, 2019 10:34 am
Prime wrote:
Fri Nov 15, 2019 9:19 am
I have a few desoldered from a beeb keyboard that I could bring along next weekend if you want.
That would be really helpful if you could. I believe that you also offered to bring a bare Atom PCB for me to look at... :D
Yep will bring that too.

Cheers.

Phill.
by Prime
Fri Nov 15, 2019 9:19 am
Forum: acorn atom and system
Topic: Replica Atom
Replies: 65
Views: 3079

Re: Replica Atom

I am now looking into whether I can design a hybrid key-switch footprint that will accommodate both a modern Cherry MX (or compatible) key-switch and an original (Issue 5) Atom key-switch. I think it may just be possible, but it will be tight. It would be helpful if I could inspect and take measure...
by Prime
Tue Nov 12, 2019 11:37 pm
Forum: wanted
Topic: Acorn System Replica boards
Replies: 14
Views: 539

Re: Acorn System Replica boards

@Phill, Do I see correct that the 74LS245 is mounted under the 6502 ? Assume this is direct on the board ? Yep that's correct, direct on board, with 6502 in a socket round it. And can you run the video board with just the 6845 and not the SAA5050 populated ? Not tried that, but if you only run the ...
by Prime
Tue Nov 12, 2019 10:53 am
Forum: wanted
Topic: Acorn System Replica boards
Replies: 14
Views: 539

Re: Acorn System Replica boards

bprosman wrote:
Tue Nov 12, 2019 10:21 am
If you like I can assist to make them in Kicad if Phill is ok woth that.
Absolutely fine with that :)

Cheers.

Phill.
by Prime
Tue Nov 12, 2019 8:52 am
Forum: wanted
Topic: Acorn System Replica boards
Replies: 14
Views: 539

Re: Acorn System Replica boards

Kicad can load eagle files and make the gerbers :) The free version of Eagle should also be able to make gerbers from those files. Available here : ftp://ftp.cadsoft.de/eagle/program/ Any version after 6.x should be good, and the 6.x and 7.x versions don't require an Autodesk login. Cheers. Phill.
by Prime
Fri Nov 08, 2019 8:45 pm
Forum: off-topic
Topic: E-Bay Complaint
Replies: 17
Views: 759

Re: E-Bay Complaint

Good luck with that, hope it gets resolved though some of your comparisons come close to invoking Goodwin.......

Cheers,

Phill.
by Prime
Sat Oct 19, 2019 8:25 pm
Forum: off-topic
Topic: Publishing multi-part projects on github.
Replies: 4
Views: 352

Re: Publishing multi-part projects on github.

I think this is difficult to answer. As a developer it might be good to separate the project parts; each program might have its own working directory and so the files are spread over your local disk. But from the end-user perspective it might be handy to have it all in one repository because they d...
by Prime
Sat Oct 19, 2019 6:15 pm
Forum: off-topic
Topic: Publishing multi-part projects on github.
Replies: 4
Views: 352

Publishing multi-part projects on github.

Hi all, This question is about my DragonMMC project but could also for example apply to the Electron / Atom boards I have made too. I've had a request to publish the source for DragonMMC (which I am intending to do). However since this project consists of 4 parts Schematic/Board layout**, Code for t...
by Prime
Mon Oct 14, 2019 1:32 pm
Forum: acorn atom and system
Topic: A Website dedicated to the Acorn System Computers
Replies: 42
Views: 2306

Re: A Website dedicated to the Acorn System Computers

I started playing around with trying to replace the INS8154 with a 6522 , by wiring up a 6522 to the appropriate signals from my System 1 board. The main take-away from the experiment was that it works, but the NMOS version of the 6522 doesn't source enough current to light a (calculator-style) LED...
by Prime
Mon Oct 14, 2019 8:19 am
Forum: bbcmicro.co.uk
Topic: Browsing Behaviour under Android
Replies: 3
Views: 227

Re: Browsing Behaviour under Android

Might also depend on which browser you are using. I've just done the following on the H page, on Firefox (both android and windows). Clicked next page twice, then clicked on "Hunchback" then back. On android it displayed the first page on windows it displayed page 3. However if I refreshed on window...
by Prime
Sat Oct 12, 2019 6:17 pm
Forum: acorn atom and system
Topic: Yarrb - redesigned
Replies: 78
Views: 3098

Re: Yarrb - redesigned

I normally pick a pinout that makes routing the PCB easy. This can be an iterative process, swapping pins (in the schematic) where necessary to avoid tracks crossing. Once the PCB is routed, I update the .ucf file with the final pinout, make the fitter can fit the design. This really means designin...
by Prime
Thu Oct 10, 2019 8:14 am
Forum: acorn atom and system
Topic: A Website dedicated to the Acorn System Computers
Replies: 42
Views: 2306

Re: A Website dedicated to the Acorn System Computers

What I've have found made by Schroff are eye-wateringly expensive. I'm sure there are loads of these chucked in skips every day but I don't seem to be able to find any! Or I'm looking for the wrong thing... The one I built my system clone in I bought from a (ametur) Raido rally, for a pretty reason...
by Prime
Fri Oct 04, 2019 10:51 pm
Forum: off-topic
Topic: Why Is E-Bay Showing Me Other People's Recently Viewed Items?
Replies: 26
Views: 1101

Re: Why Is E-Bay Showing Me Other People's Recently Viewed Items?

Oddly I have Adblock Plus on my windows install here, both it and FF are up to date and not seeing the behavior you are. Maybe it's an ABP setting that's causing it.

Cheers.

Phill.
by Prime
Fri Oct 04, 2019 8:31 am
Forum: upcoming and recent events & exhibitions
Topic: ABUG SOUTH 22 to 24 November 2019 - NOW FULL
Replies: 179
Views: 7980

Re: ABUG SOUTH 22 to 24 November 2019 - NOW FULL - but accepting names for reserve list

daveejhitchins wrote:
Fri Oct 04, 2019 6:48 am
Dito . . . I have one of Dave Moore’s folding tables that I used last year - so another spare table.
Is there anyone on here that doen't have something of Dave's :) :) :)

Cheers.

Phill.
by Prime
Fri Oct 04, 2019 8:30 am
Forum: acorn atom and system
Topic: My first (dead) Atom
Replies: 14
Views: 600

Re: My first (dead) Atom

The glitching while drawing is normal but if the drawing stops, the glitching must be gone and may not have corrupted the screen. The glitching is caused by sharing the databus between CPU and videoprocessor. What I have noticed with my various video addon boards, is that if you get screen corrupti...