"Just RAM" A RAM Cartridge for the Electron or Master 128

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daveejhitchins
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"Just RAM" A RAM Cartridge for the Electron or Master 128

Post by daveejhitchins »

As the title says: Just RAM with or without a 3D printed cartridge case.

This is the ARA III fitted with 32K RAM (shows as 2 x 16K banks) in place of the 28C256 EEPROM.

Plug and go in either machine. The standard Master utilities can be used for loading images etc. It should be transparent operation for any games then need sideways RAM. If it's for an Electron, you'll need the Plus 1 support ROM.

Price:
With case:         £14.10
Without case:    £10.93
Price includes UK First Class Signed-For postage
IMG_1098-1.jpg

Dave H.
Last edited by daveejhitchins on Fri Dec 18, 2020 1:06 pm, edited 2 times in total.
Remklep
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by Remklep »

Do you sell them as kits too?
I'de love to solder one together myself.

Danny
BBC Model B+ 64K, 128K Memory Mod, RetroClinic External PiDirect with Raspberry Pi 3B.
BBC Master 128, RetroClinic Internal PiDirect with Raspberry Zero, TurboSPI MMC, RobC's VideoNuLa, Gotek Floppy Emulator.
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BeebMaster
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by BeebMaster »

That's a great idea! In the past I have put RAM chips into standard cartridges with the same effect, but as I only have 6264 or 62256, I've ended up wasting 2 62256 chips to get 2 16K banks.

Putting RAM in cartridge is very handy for cases where you've disabled the sideways RAM to use the internal Master ROM sockets, or you are using an application which uses up all 4 banks of SRAM (like the Domesday System).
Image
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flaxcottage
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by flaxcottage »

Very nice piece of kit, Dave. =D>

I almost put my name down for one and then my brain kicked in. :lol:
- John

Check out the Educational Software Archive at www.flaxcottage.com
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daveejhitchins
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by daveejhitchins »

Remklep wrote:
Fri Dec 18, 2020 12:30 pm
Do you sell them as kits too?
I'de love to solder one together myself.

Danny
I can put a kit together for you.

PM sent . . .

Dave H.
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kilowatt
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by kilowatt »

Hi Dave,

If you still have any of these available, I would like to order one RAM cartridge with case please.
I am unable to PM you. Thanks

Kin
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daveejhitchins
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by daveejhitchins »

kilowatt wrote:
Fri Jan 22, 2021 11:29 pm
Hi Dave,

If you still have any of these available, I would like to order one RAM cartridge with case please.
I am unable to PM you. Thanks

Kin
PM Sent . . .

Dave H.
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kilowatt
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by kilowatt »

Hi Dave,

Thanks for the PM this morning. Just to let you know that I've replied to your email address.
The RAM cartridge will be used in a Master 128. Thanks.

Kin
TimoHartong
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by TimoHartong »

daveejhitchins wrote:
Fri Dec 18, 2020 12:27 pm
As the title says: Just RAM with or without a 3D printed cartridge case.

This is the ARA III fitted with 32K RAM (shows as 2 x 16K banks) in place of the 28C256 EEPROM.

Plug and go in either machine. The standard Master utilities can be used for loading images etc. It should be transparent operation for any games then need sideways RAM. If it's for an Electron, you'll need the Plus 1 support ROM.

Price:
With case:         £14.10
Without case:    £10.93
Price includes UK First Class Signed-For postage
IMG_1098-1.jpg


Dave H.
May I ask how can I see if I have the "Plus 1 support ROM". Perhaps stupid question but I'm completely new to 8 bit Acorn. And do you ship to the Netherlands ?. Thanks in advance
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roland
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by roland »

TimoHartong wrote:
Thu Oct 07, 2021 11:53 pm
May I ask how can I see if I have the "Plus 1 support ROM". Perhaps stupid question but I'm completely new to 8 bit Acorn. And do you ship to the Netherlands ?. Thanks in advance
You can check with *HELP or *HELP +1. The default Plus1 ROM has no extra *-commands. Other ROM will print PRES or RH in the copyright banner.
Dave does ship to the Netherlands, at least until a few weeks ago :)
FPGAtom: 512 KB RAM, Real Time Clock and 64 colours
MAN WOMAN :shock:
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daveejhitchins
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by daveejhitchins »

PM sent - Dave H.
TimoHartong
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by TimoHartong »

Hi Dave and Roland,

I received the PM thanks. Unfortunately I have the old ROM :(
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roland
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by roland »

Hi Timo, I can supply a new ROM if you want or Dave can probably add a RH version if you order a RAM cartridge.
FPGAtom: 512 KB RAM, Real Time Clock and 64 colours
MAN WOMAN :shock:
TimoHartong
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by TimoHartong »

roland wrote:
Fri Oct 08, 2021 10:11 am
Hi Timo, I can supply a new ROM if you want or Dave can probably add a RH version if you order a RAM cartridge.
Hi Roland,

I was Sunday at Bas and he provided me with the new firmware for the plus 1 and also the new ADFS for the plus 3. So I'm up to date now.. Thanks anyway for the offer.

Yours,
Timo
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SpaceFlightOrange
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by SpaceFlightOrange »

Hi Dave.

This one had completely passed me by. Probably a stupid question, what are the main differences between this and the ABR (Which i already own)? apart from being able to write protect via software? presumably being an EEPROM this will retain what's written after power cycling?

Do you still have any available with a case? I'm rather interested and I love your stuff!
James

BBC Model A Issue 3 (Upgraded to Model B), IFEL TurboMMC, IFEL ROMRAM-B4, Pi-Zero CoPro, VideoNuLA

Master 128, Watford Quest Mouse, Gotek, Pi-Zero internal CoPro, Pi-1Mhz HDD, RGBtoHDMI

Opus Dual 40/80 FDD
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daveejhitchins
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by daveejhitchins »

SpaceFlightOrange wrote:
Mon Oct 11, 2021 11:14 pm
Hi Dave.

This one had completely passed me by. Probably a stupid question, what are the main differences between this and the ABR (Which i already own)? apart from being able to write protect via software? presumably being an EEPROM this will retain what's written after power cycling?

Do you still have any available with a case? I'm rather interested and I love your stuff!
There are two versions of the ARA III: Just RAM - just as it says on the tin, 32K of RAM (2 x 16K banks) -- And Programmable ROM. This is the same board as Just RAM with an EEPROM and a write protect link. Used for those ROM images you like to keep handy e.g. you don't change very often.

The ABR has RAM which can be locked (with the appropriate software), which then behaves like ROM.

Dave H.

Edit: ABR, Just RAM and Programmable ROM all work with the Electron and Master.
SkaterMark
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by SkaterMark »

Hi is it possible to get this board without the ROM/RAM so I can fit a socket and then use either my own Rom or ram chips?

Would that stop it fitting in a plus 1 slot?

Thanks
Mark
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daveejhitchins
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by daveejhitchins »

SkaterMark wrote:
Wed Nov 24, 2021 8:05 pm
Hi is it possible to get this board without the ROM/RAM so I can fit a socket and then use either my own Rom or ram chips?

Would that stop it fitting in a plus 1 slot?

Thanks
Mark
You can just buy the PCB with a schematic, if you'd like to?

I'll drop you a PM . . .

Dave H.
Zalaga
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by Zalaga »

hi dave, please could you send me a pm with your contact details, interested in your cartridges, thanks
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daveejhitchins
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Re: "Just RAM" A RAM Cartridge for the Electron or Master 128

Post by daveejhitchins »

Hi, Zalaga . . . PM sent - Dave H.
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