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Ah the ZX81 wasn't all that bad, very affordable when it came out (even cheaper if you built it yourself) and great for learning BASIC. But a ZX81 in 1990... Actually neither was the Plus4, especially with a proper graphical operating system running on it in the form of GEOS (once the 3rd most...

Looks like an early x-mas present for me so :) And thanks for the roses but don't get your hopes up too much, like. Might have to drive down to Cork like and see if I can find the guy that build them. And ask him, like, why didn't you take more care with those via's?

Sure if you know someone, go right ahead and change it...I hope you know him well ;) D'oh...PDS indeed...need to stop speed reading...

Great stuff man 8-) Thanks for checking this out. So things are looking good with the RCP! Is that the one that's going cheap on the Bay? Hey colour is colour! I'd be happy with that.

Brilliant! 8-) Any tips on how to solder / desolder SMD stuff with a heat gun? Do you shield the component / components around the one you're working on? What temperatures / time frame are we talking about?

Good man yourself! Looking forward to the results Capt'n :) !

Nice one! No challenge to big or small ;) . Certainly looking forward to the results! Yeah had a look at LEM but that Gamba chart is exactly what I was looking for. Thanks!

That's good to know. So does anyone know for definite what Colour NuBus card will drive my 12" RGB at 512x384? I've been looking at loads of sites but there seems to be some contradiction, e.g. the Display Card 4.8 is quoted to work on some site, and not on others. Has anyone successfully...

Actually I have a similar setup for getting data onto my external SCSI drive. I connect the drive to my WinXP box (PCI SCSI card with 25pin external connector on the back) and use TransMac software to access the drive. Works grand so far, but I haven't tried formatting the external yet (it does...

Did you know that originally SCSI was intended to be pronounced "sexy" but someone called it "scuzzy" and that stuck. Sorry about that useless fact of the day, but it's Sunday morning and my head hurts!

5V and 12V seem to be within acceptable ranges (even though 5V seems a bit high), and to be honest I wouldn't worry too much about the low -12V rail, my LC PSU has a very low -5V rail as well but works fine otherwise. I'd just try starting it up once you get the ROM's sorted out :) I suppose...

I still wouldn't connect a joystick to an AUI port, some pins will still be shorted (if you press the fire buttons) or be connected through a varying resistance (depending on the position of the stick that would be the same as shorting out the pins) so probably not a good idea. OOM do you have...

Nice one! But if I remember correctly, the PSU will give the appropriate voltages without being loaded. So you should get +5V,+12V and -12V even without the logic board being connected. Anything else would indicate a problem I think :(

That's interesting 8-) . So a 10F cap should last nearly 8 days. That's actually not great. How did you test this? Did you install a charged cap instead of the battery? PS: if I did my calculations right, a 300F cap would last nearly 34 weeks, still nothing compared to a battery.

Sorry to be off topic, but this may be of interest to Ike: http://68kmla.org/forums/viewtopic.php?p=219973#p219973

Just a quick update on this: I have managed to get an acceptable image on a Samsung SyncMaster 710 (for once something did live up to it's name :wink: ) LCD monitor. This may be useful for other Radius GS/C owners out there. The wiring diagram for the adapter is as follows: Radius...

This may be of interest to you: http://68kmla.org/forums/viewtopic.php?p=211261#p211261

Are you sure the smaller ones are faulty? Is it clear that they have failed? I had a similar problem in my IIcx psu with a visibly blown filter cap (the large one) and replaced that only. Works fine now. Technically the psu should work without the filter caps so you could temporarily try...

Better cooling :)

Just after checking my 4Mb SE: no jumper is set. Also Pina says (for reference): MEM____Row2______Row1________Jumper 512K.....all 256K......empty..........2/4 on 1M.......all 256k......all 256k.........1 on 2M........all 1M.........empty.........2/4 on 2.5M.....all 1M........all...