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Always an idea to look for a K63H - just as good as the L88M - you tend to find most of those at least are pulls, not NoS :)

Some nice, clear shots there! :)

Repairs are underway on 'the collection' - awaiting a flyback transformer from Dalbani - it must have taken a carrier pigeon to get here!

Yes, it's quite simple really - it takes very little time to register for an account here. Trading here is a privilege, not a right. For the safety of members and to cut down on spam, we decided that it's prudent to allow trading between members only. One of the other reasons why this section...

I think i have the older board - it was a New-old-stock one that i used for reference. Not sure if the photo's i take will be great though :p

Is that a known trick to make the contents of a PAL/GAL reveal themselves if locked? :)

John Burn's excellent resource on HP Workstations here: http://www.unixnerd.co.uk/hp_unix.html

I'm having a really hard time trying to find some of the DIP DRAM's used in the 500+ Has anyone got any lurking in their stores? After any of the following: 514256 424256 514256 44C256 44C256 514256 81C4256 71C4256 514256 534256 4C4256 44256

Have you tried the trick here that @TheBasement posted on his YT channel?

The chip you've used should be fine - it's rated for 70ns, instead of the 80ns stuff on the board. You can use this chart to cross reference the chips: https://ardent-tool.com/memory/Chip_Conversion.html

Some bus translation would be required to essentially put the 030 onto the 000 bus.

In all seriousness, merch is planned, but implementation takes a while. @fogWraith has the links for donations ready to do :)

Well the boards generally come to around £35 and come with almost all the rear side passives populated. Then you move over most of your parts. I do have a p&p and BOM for the board, i'll post those on GitHub soon. @MacEffects has the license for production, just a matter of when/if it goes on...

Because the values are unknown :p

Funnily enough, i've got a trip planned for later this month - would be funny if i got to see it in person! :D

@nottomhanks ooooh that G3 accelerator for the 8100...would you consider selling that? I have one, but i lack the PDS relocator bracket and flex cable.

It's not a crime to think about yourself, from time to time. It's OK to focus on what you want to do, even if what you want to do is nothing much at all. Relax, kick back and enjoy your life - we're only here once, so make the most of the time you have.

The dual 7457 card finally got here - time to try it out!

@MacEffects has the license, as with the Macintosh SE Reloaded, for board sales in the continental US - not sure of the timeline of production on their side though. If it's a while, i can do a small board run, with SMD pre-assembly done on the rear (barring the inductors)

I concur, inverted looks better on the PCB :)