PhilCs blog / the latest things hes broken(fixed)

[PhilC]

Let's face it, whose wife knows how much an MTX512 is worth?

Well, there are people trying to sell them on eBay who don't know how much they're really worth.

Hint: Even after appearing on RMC a few times it's about half or less of what they're asking.

Yeah that's what I kind of assumed @stephen_usher, £600 is kind of on the ridiculous side. Its staying in my collection for now though

[stephen_usher]

If you want a nuts price, there's this:

https://www.ebay.co.uk/itm/133956887356

£500 + delivery for a ROMpack... which is a small PCB with a 74 TTL chip and an EPROM, this contents of which are free on-line.

[PhilC]

If you want a nuts price, there's this:

https://www.ebay.co.uk/itm/133956887356

£500 + delivery for a ROMpack... which is a small PCB with a 74 TTL chip and an EPROM, this contents of which are free on-line.

[PhilC]

Pretty happy with myself this afternoon. I took a punt on a broken ATI Mach32 ISA graphics card the other week. It arrived a couple of days ago and I finally got around to putting it on the bench today.

So when I plugged it in it wouldn't display a thing iny old Sharp PC-7210 so I thought, I'd obviously wasted my money.

On closer inspection it looked like one of the ISA buffer chips had badly corroded legs. Do cut those off, put in an HCT245 in it's place, removed a bit more corrosion on the PCB and I've only gone and fixed it.

It's a 1MB card, so I'll be trying to track down some HM514170JP8 chips to upgraded it to 2mb and then that's the graphics sorted for the Raven build.

PXL_20240820_143311276.jpg (503.55 KiB) Viewed 129 times

[frank.lukas]

Simply plug in the missing second megabyte. Otherwise you don't need to do anything else I think ...

[PhilC]

Simply plug in the missing second megabyte. Otherwise you don't need to do anything else I think ...

Thanks Frank, just got to find some now.