Search found 174 matches

by Ramtop
Sat Jan 18, 2020 7:19 pm
Forum: for sale / freebies
Topic: Electron SD Interface & SW Ram Expansion
Replies: 44
Views: 3407

Re: Electron SD Interface & SW Ram Expansion

Glad to hear you both got your interfaces ok. The Elk is a funny machine. I don't have any history with it, for me the 80s were filled with various Sinclairs and Commodores, and there were plenty of better specced machines even BITD, but I find myself using it more than any of my other 8-bit machines.
by Ramtop
Fri Jan 17, 2020 10:33 pm
Forum: for sale / freebies
Topic: Electron SD Interface & SW Ram Expansion
Replies: 44
Views: 3407

Re: Electron SD Interface & SW Ram Expansion

Just the same as above, drop me an email at my username @gmx.co.uk
by Ramtop
Fri Jan 17, 2020 7:36 pm
Forum: off-topic
Topic: Which soldering iron?
Replies: 18
Views: 345

Re: Which soldering iron?

Other common problems are: mains wiring that does not meet reasonable electrical practice or U.K. standards. Possibly including fused neutral (only the line should be fused), switched neutral (where the line is not switched), inadequate earthing, U.K. type mains plug with no fuse, undersized U.K. t...
by Ramtop
Fri Jan 17, 2020 10:33 am
Forum: off-topic
Topic: Which soldering iron?
Replies: 18
Views: 345

Re: Which soldering iron?

A good soldering station doesn't have to cost much at all. I use a Circuit Specialists model that costs less than £60. And, yes, they commit the crime of shipping it with a conical tip, so buying a few useful tips is mandatory to get good results. https://www.circuitspecialists.eu/soldering/solderin...
by Ramtop
Wed Jan 15, 2020 12:10 pm
Forum: for sale / freebies
Topic: Electron SD Interface & SW Ram Expansion
Replies: 44
Views: 3407

Re: Electron SD Interface & SW Ram Expansion

You're not being dim at all :)

The PM option isn't enabled until you have 25 posts on the forum. I got your email and have replied.
by Ramtop
Sun Jan 12, 2020 1:29 pm
Forum: for sale / freebies
Topic: Electron SD Interface & SW Ram Expansion
Replies: 44
Views: 3407

Re: Electron SD Interface & SW Ram Expansion

If you can't get PM access, drop me an email at my username @gmx.co.uk and we'll get an ElkSD64 sorted for you.
by Ramtop
Tue Jan 07, 2020 7:31 pm
Forum: off-topic
Topic: Royal Mail retro video games stamp collection
Replies: 18
Views: 477

Re: Royal Mail retro video games stamp collection

Good to see Elite on there, thoroughly deserved. Four Amiga entries too, my inner Amiganut quite likes that :)
by Ramtop
Sun Jan 05, 2020 7:46 pm
Forum: hardware
Topic: How many 8bit beeb basic machines
Replies: 19
Views: 513

Re: How many 8bit beeb basic machines

Manufacturers sometimes inflate sales numbers. For instance, there were somewhere between 10–30 million C64s made. Everyone who worked for Commodore states the largest number as gospel. The largest number I've seen backed up by serial number statistics is around 18 million. Commodore's record keepi...
by Ramtop
Sun Jan 05, 2020 12:37 pm
Forum: hardware
Topic: How many 8bit beeb basic machines
Replies: 19
Views: 513

Re: How many 8bit beeb basic machines

I strongly suspect the Acorn machines came very close or beat the Amstrad CPCs in the UK at least. Amstrad did a major amount of business in France and Spain, somewhere around 60% of their sales if I recall correctly. That's why Amstrad managed to ride out the 1984 UK market crash that did for Sincl...
by Ramtop
Sat Jan 04, 2020 11:33 pm
Forum: off-topic
Topic: FPGA's and Hardware description languages for laymen
Replies: 17
Views: 501

Re: FPGA's and Hardware description languages for laymen

Ask yourself this question, when will B become 1? If this were a programming language, B would not become 1 until A stopped being 0. But in HDL, the answer would be immediately. That's because in a hardware description language your are describing the functionality and connection of logic cells. 'B...
by Ramtop
Sun Dec 29, 2019 1:45 pm
Forum: hardware
Topic: SD2BBC SD card reader
Replies: 2
Views: 179

Re: SD2BBC SD card reader

Hmm. £5 for a nice case would be acceptable, but £17 is quite steep for what is just a plastic box with a couple of holes in it.
by Ramtop
Sat Dec 21, 2019 4:36 pm
Forum: general
Topic: The passing of Chuck Peddle
Replies: 4
Views: 388

Re: The passing of Chuck Peddle

Very saddening news indeed. Chuck was more responsible for the personal computer revolution than anyone else, a truly great engineer who never stopped innovating.
by Ramtop
Sat Dec 07, 2019 3:47 pm
Forum: software: other
Topic: New music conversion - Castlevania III
Replies: 17
Views: 1063

Re: New music conversion - Castlevania III

Oooh, this is very impressive! I had no idea the Master could sound so good. :D
by Ramtop
Sat Dec 07, 2019 12:13 am
Forum: hardware
Topic: Acorn Elk usb floppy disk drive (DEFUNCT TOPIC SUB)
Replies: 28
Views: 572

Re: Acorn Elk usb floppy disk drive

I'm possibly miss-reading, but the OP doesn't have any form of disk interface? That was what I was referring to.
by Ramtop
Fri Dec 06, 2019 11:19 pm
Forum: hardware
Topic: Acorn Elk usb floppy disk drive (DEFUNCT TOPIC SUB)
Replies: 28
Views: 572

Re: Acorn Elk usb floppy disk drive

Yes, my understanding of it is that a bunch of 'legacy' lines were omitted to save space and cost so there's little to no chance of getting one of these drives working on a standard 34-pin interface. Given how cheap normal floppy drives can be found on EBay I think there's little point trying. Of co...
by Ramtop
Fri Dec 06, 2019 10:45 pm
Forum: hardware
Topic: Acorn Elk usb floppy disk drive (DEFUNCT TOPIC SUB)
Replies: 28
Views: 572

Re: Acorn Elk usb floppy disk drive

USB floppies, at least the ones I've seen, don't use anything like a normal floppy drive internally. It's a mechanism specifically designed for USB use, I don't believe there's any simple way of getting it working on a standard floppy interface.
by Ramtop
Wed Nov 20, 2019 10:37 pm
Forum: off-topic
Topic: Google Stadia
Replies: 10
Views: 522

Re: Google Stadia

It's possible to do such a thing, in theory at least. Google has an idea they refer to as as 'negative latency', where the server tries to guess what the player will do next and send the required data before they actually do it. But they don't have it working yet and I doubt they ever will. The rang...
by Ramtop
Wed Nov 20, 2019 3:56 pm
Forum: off-topic
Topic: Google Stadia
Replies: 10
Views: 522

Re: Google Stadia

Re: Google Stadia The standard rebuke to streaming games over the internet like Stadia is the issue of latency: games that require fast reaction times (like shoot-em-ups such as Doom, Quake, Call of Duty, Halo, etc.) won't take kindly to having your movement inputs sent across the internet to a rem...
by Ramtop
Fri Nov 15, 2019 8:43 pm
Forum: off-topic
Topic: PayPal fees on tax collected by eBay
Replies: 13
Views: 617

Re: PayPal fees on tax collected by eBay

Pretty sure this started within the last month. I sold an item to a US buyer in early October and everything was normal, but got another US sale yesterday and tax has been added and then deducted from the paypal transaction.
by Ramtop
Tue Nov 12, 2019 8:12 pm
Forum: hardware
Topic: Looking for inspiration - debugging E2P
Replies: 91
Views: 3607

Re: Looking for inspiration - debugging E2P

I suspect your Spectrum membrane example is a good measure, Mark. From my own experience, the number of SD interfaces I've sold to forum members is less than 10% of the total. There does seem to be a very large number of retro computer owners who maybe buy some stuff or occasionally watch retro Yout...
by Ramtop
Mon Nov 11, 2019 11:08 am
Forum: hardware
Topic: SD Interface for Plus 1
Replies: 27
Views: 1482

Re: SD Interface for Plus 1

Thank you very much for the kind words!

Pretty much every major retro machine has reasonably priced SD interfaces now and I don't see why the Elk should be left out. And thanks to the assistance I've received from people here on stardot I'm happy to be able to help with that a bit.
by Ramtop
Mon Nov 11, 2019 11:02 am
Forum: hardware
Topic: OSWORD &7F on DFS vs MMFS
Replies: 26
Views: 1010

Re: OSWORD &7F on DFS vs MMFS

Ah, but I believe all of Ramtop's interfaces re-implement a Electron Printer Port (EPP) interface in the CPLD for driving the SD Card, even the cartridge port one. Spot on, Dave. They all implement just enough of the EPP for MMFS to work. The ElkSD-Plus 1 merely changes the addresses used so as not...
by Ramtop
Sat Nov 09, 2019 6:17 pm
Forum: off-topic
Topic: E-Bay Complaint
Replies: 17
Views: 752

Re: E-Bay Complaint

The concept of on-going support doesn't seem to occur to eBay (or they're not interested in sellers and buyers who believe in this sort of service). They do seem to be set up purely for pile-em-high commodity sales. There is a sneaky workaround for sending links via Ebay messages ... send the link ...
by Ramtop
Sat Nov 09, 2019 12:13 pm
Forum: off-topic
Topic: E-Bay Complaint
Replies: 17
Views: 752

Re: E-Bay Complaint

Ian, you are absolutely correct with this. I've complained to EBay about their ridiculous policies before, and like you got short shrift. Many, many times I've had people enquire about the Electron SD interfaces I sell on EBay and are flabbergasted when I tell then Ebay will not allow me to link to ...
by Ramtop
Fri Nov 08, 2019 10:48 am
Forum: acorn atom and system
Topic: Yarrb - redesigned
Replies: 77
Views: 3010

Re: Yarrb - redesigned

The technique demonstrated in that video is a very poor way of soldering surface mount ICs. Putting solder on the pads causes them to be lumpy, making it more difficult to align the chip. Its pins will tend to slide into the gaps between the pads. And using a hot air gun is slow and subjects the chi...
by Ramtop
Mon Nov 04, 2019 11:57 pm
Forum: acorn atom and system
Topic: Yarrb - redesigned
Replies: 77
Views: 3010

Re: Yarrb - redesigned

I say give hand soldering a try. Given sufficient practice it becomes very possible to solder fine pitch parts with accurate, repeatable results; I soldered ten CPLDs in 0.5mm QFP packages this evening and it only took me about 40 minutes to do, because I work with those regularly. To start I'd sugg...
by Ramtop
Sun Nov 03, 2019 7:59 pm
Forum: hardware
Topic: ROM Burner/Programmer
Replies: 7
Views: 437

Re: ROM Burner/Programmer

That's what I use. The software is ugly and basic, but the programmer is mostly fine. I've use it to program hundreds of EPROMS and flash chips with no complaints.
by Ramtop
Sat Nov 02, 2019 9:34 pm
Forum: hardware
Topic: Proposed: "The Ultimate Electron Upgrade"
Replies: 521
Views: 38519

Re: Proposed: "The Ultimate Electron Upgrade"

It's quite spooky seeing an Elk with the CPU socket empty :shock:
by Ramtop
Sat Nov 02, 2019 9:32 pm
Forum: for sale / freebies
Topic: Electron / Plus 1 SD Card Interfaces [Sold Out]
Replies: 4
Views: 476

Re: Electron / Plus 1 SD Card Interfaces

Drop me a PM and we'll get it sorted.
by Ramtop
Sat Nov 02, 2019 8:49 pm
Forum: for sale / freebies
Topic: Electron / Plus 1 SD Card Interfaces [Sold Out]
Replies: 4
Views: 476

Re: Electron / Plus 1 SD Card Interfaces

PMs are enabled at 25 posts I believe. Otherwise you can email me at my username + @gmx.co.uk

(same goes for anyone else who doesn't have PM access; post here then email me if you want to buy one)